Delta-V Wiki - User contributions [en]

Antagonist

2025-06-28T19:24:54Z

HTMLSystem: Fixed Cosmic Cultist link

{{Stub}}

= Main Antagonists =
Those antagonists are typically the primary bad guy of a single round. They are usually the main form of how a round can play out, ranging from a plain ass round with nothing interesting going on, to an investigation on why someone bombed Medical, or why the there are red people outside the Bridge.

== [[Traitor]] ==
[[File:Traitor.gif|64px]]
''Your PDA beeps. Whiskey, Echo, Whiskey, Lima, Alpha, Delta.''

A traitor is an antagonist employed by the [[Syndicate]]. They have access to the [[Guide_to_Traitor#Uplink|Uplink]] in their [[PDA]] which allows them to buy [[Syndicate Items|all sorts of gear]]. They are also meant to do specific directives from the [[Syndicate]].

== [[Nuclear Operative]] ==
[[File:Nuclear Operative.gif|64px]]
''OPERATIVES STANDBY. YOUR OBJECTIVES ARE SIMPLE. DELIVER THE PAYLOAD AND GET OUT BEFORE THE PAYLOAD DETONATES. BEGIN MISSION.''

A nuclear operative is an antagonist employed by the [[Syndicate]], presumably operatives from ERT or bored greytiders. Your objective is simple, break in and detonate the Nuclear Fission Device. Escape is optional, just get the nuke detonated. You get to buy lots of [[Syndicate Items|fun things]] to help in your mission.



== [[Zombie]] ==
[[File:ZombieIcon.png|64px]]
''Braainnssss...''

Zombies are conversion antagonists whose sole purpose is to infect and convert as much of the crew as possible. They boast strong resistances to various damage types and are able to regenerate themselves through feasting on unsuspecting crew members. Zombies propagate through biting their victims, transmitting a deadly infection that will cause them to turn into a zombie when they succumb.

==[[Cosmic Cultist]]==
[[File:Cosculticon.png|96px]]
''Beckon the Unknown. Call the curtain close.''

The Cosmic Cult are conversion antagonists who have a few objectives. Siphon a certain amount of entropy from the crew, convert a certain number of the crew into the cult, get the Monument to tier 3, and then beckon the great Unknown, calling the curtain close on this universe.

= Side Antagonists =
Those antagonists are typically subservient to another antagonist or have a small chance to appear during any round type. While they are not really the main focus of the round, they can range from being a minor nuisance to a threat to the entire crew.


== [[Revenant]] ==
[[File:Revenant.gif|64px]]
''Rev in medbay! No, the other rev!''

This is a random event antagonist that sucks up the soul of people when they die, they also have the ability to check souls when a human is alive.

== [[Space Ninja]] ==
[[File:Space Ninja.png|64px]]
''Nothing personnel kid.''

Space Ninjas are a special type of ninja, specifically one of the space-faring type. The vast majority of space ninjas belong to the Spider Clan, a cult-like sect which has existed for several hundred years. They are an antagonist that can appear during most gamemodes, they are given some goals and a bunch of very powerful tools to accomplish said goals.

== [[Space Dragon]] ==
[[File:Space Dragon.gif|64px]]
''All of the stations on the rim are out there fighting space dragons, and what do I get?''

The Space Dragon is a midround antagonist that can appear during most gamemodes, their goal is to summon 3 space rifts on the station and completely take it over.

Gases

2025-06-28T19:19:11Z

HTMLSystem: Got rid of the table, added more information about each specific gas, what gases they can be formed from, and what gases they can make.

{{Stub}}
=Introduction=
The gases are the most important part of Atmospherics. There are currently 9 gases in the game, each of them has its own Specific Heat Capacity and Molar Mass. The standard air mix on the station is 22%-25% oxygen and 78%-75% nitrogen at 101.325kPa and 20°C or 293.15K. Most of them can be created using [[Pipes and vents#Gas_Miner|Gas Miners]] or created in combustion reactions.

=Gases=

==Oxygen==
[[File:Oxygen gas.png]] 
Colorless, reactive gas that humans need to breathe to stay alive. Key oxidizing agent in most combustion reactions. Most species need 18 mols to breathe, except [[Playable Species#Harpy|Harpies]] who need 22 mols to breathe. Toxic to [[Playable Species#Vox|Voxes]] in any quantity. Has a specific heat capacity of 20 and a molar mass of 32.

==Nitrogen==
[[File:Nitrogen gas.png]] 
Colorless, odorless, inert gas. [[Playable Species#Slimes|Slimes]] and Voxes breathe this. Has a specific heat capacity of 30 and a molar mass of 28. Naturally cools off hot gases slowly.

==Carbon Dioxide==
[[File:Carbon dioxide.png]] 
Colorless, odorless, relatively inert gas. Exhaled by creatures that breathe oxygen. Toxic in high enough quantities. The reason why atmospheric technicians are employed. Has a specifc heat capacity of 30 and a molar mass of 44.

==Plasma==
[[File:Plasma.png]] 
Purple, putrid, highly-combustible, and toxic gas. Combusts in the presence of oxygen at high tempatures, but will not ignite on its own. Unfortunately, it is also vitally important to industrial and scientific activities aboard Nanotrasen stations. Creates Tritium when burnt with oxygen. Has a specific heat capacity of 200 and a molar mass of 120.

==Tritium==
[[File:Tritium.png]] 
Green, highly-combustible, and radioactive. Combusts in the presence of oxygen. It is formed by the combustion of Oxygen and Plasma. To form Tritium, there must be 96 times more Oxygen than Plasma during the reaction. If there is too much Plasma, the reaction will produce Carbon Dioxide instead. Forms Water Vapor when burned. Has a specific heat capacity of 10 and a molar mass of 6.

==Water Vapor==
[[File:Water_Vapor.png]] 
Water in gaseous form. Due to the unique environment of space, does not condense into liquid water. Harmful to slime people. Formed when Tritium is burned with Oxygen. Has a specific heat capacity of 40 and a molar mass of 18.

==Miasma==
[[File:Miasma.png]] 
Purple, foul-smelling gas. Breeds disease, toxic, and harmful in sufficiently large concentrations. A by-product of nasty biological processes, including rotting bodies, and what Voxes breathe out. Has a specific heat capacity of 20 and a molar mass of 44.

==Nitrous Oxide==
[[File:Nitrious_Oxide.png]] 
Colorless gas. Otherwise known as "laughing" or "sleepy" gas, it acts as a sedative to non-slimes and is toxic in very high concentrations. A by-product of Slimes exhaling. Formed from Frezon and Nitrogen. Has a specific heat capacity of 40 and a molar mass of 44.

==Frezon==
[[File:Frezon.png]] 
Blue-greenish gas. Used as an industrial coolant. Used recreationally by some for its euphoric effects, before their lungs freeze out. It has a high value and is made by mixing cold Tritium and Oxygen. Reacts to nitrogen when exposed to it, creating nitrous oxide. Has a specific heat capacity of 600 and a molar mass of 50.

{{Guides Menu}}

Antagonist

2025-06-27T15:48:57Z

HTMLSystem: Fixed Space Dragon passage.

{{Stub}}

= Main Antagonists =
Those antagonists are typically the primary bad guy of a single round. They are usually the main form of how a round can play out, ranging from a plain ass round with nothing interesting going on, to an investigation on why someone bombed Medical, or why the there are red people outside the Bridge.

== [[Traitor]] ==
[[File:Traitor.gif|64px]]
''Your PDA beeps. Whiskey, Echo, Whiskey, Lima, Alpha, Delta.''

A traitor is an antagonist employed by the [[Syndicate]]. They have access to the [[Guide_to_Traitor#Uplink|Uplink]] in their [[PDA]] which allows them to buy [[Syndicate Items|all sorts of gear]]. They are also meant to do specific directives from the [[Syndicate]].

== [[Nuclear Operative]] ==
[[File:Nuclear Operative.gif|64px]]
''OPERATIVES STANDBY. YOUR OBJECTIVES ARE SIMPLE. DELIVER THE PAYLOAD AND GET OUT BEFORE THE PAYLOAD DETONATES. BEGIN MISSION.''

A nuclear operative is an antagonist employed by the [[Syndicate]], presumably operatives from ERT or bored greytiders. Your objective is simple, break in and detonate the Nuclear Fission Device. Escape is optional, just get the nuke detonated. You get to buy lots of [[Syndicate Items|fun things]] to help in your mission.



== [[Zombie]] ==
[[File:ZombieIcon.png|64px]]
''Braainnssss...''

Zombies are conversion antagonists whose sole purpose is to infect and convert as much of the crew as possible. They boast strong resistances to various damage types and are able to regenerate themselves through feasting on unsuspecting crew members. Zombies propagate through biting their victims, transmitting a deadly infection that will cause them to turn into a zombie when they succumb.

==[[Cosmic Cult]]==
[[File:Cosculticon.png|96px]]
''Beckon the Unknown. Call the curtain close.''

The Cosmic Cult are conversion antagonists who have a few objectives. Siphon a certain amount of entropy from the crew, convert a certain number of the crew into the cult, get the Monument to tier 3, and then beckon the great Unknown, calling the curtain close on this universe.

= Side Antagonists =
Those antagonists are typically subservient to another antagonist or have a small chance to appear during any round type. While they are not really the main focus of the round, they can range from being a minor nuisance to a threat to the entire crew.


== [[Revenant]] ==
[[File:Revenant.gif|64px]]
''Rev in medbay! No, the other rev!''

This is a random event antagonist that sucks up the soul of people when they die, they also have the ability to check souls when a human is alive.

== [[Space Ninja]] ==
[[File:Space Ninja.png|64px]]
''Nothing personnel kid.''

Space Ninjas are a special type of ninja, specifically one of the space-faring type. The vast majority of space ninjas belong to the Spider Clan, a cult-like sect which has existed for several hundred years. They are an antagonist that can appear during most gamemodes, they are given some goals and a bunch of very powerful tools to accomplish said goals.

== [[Space Dragon]] ==
[[File:Space Dragon.gif|64px]]
''All of the stations on the rim are out there fighting space dragons, and what do I get?''

The Space Dragon is a midround antagonist that can appear during most gamemodes, their goal is to summon 3 space rifts on the station and completely take it over.

Antagonist

2025-06-27T15:47:08Z

HTMLSystem: Added the cosmic cult, hid the rat king, and fixed some grammer on the zombie section.

{{Stub}}

= Main Antagonists =
Those antagonists are typically the primary bad guy of a single round. They are usually the main form of how a round can play out, ranging from a plain ass round with nothing interesting going on, to an investigation on why someone bombed Medical, or why the there are red people outside the Bridge.

== [[Traitor]] ==
[[File:Traitor.gif|64px]]
''Your PDA beeps. Whiskey, Echo, Whiskey, Lima, Alpha, Delta.''

A traitor is an antagonist employed by the [[Syndicate]]. They have access to the [[Guide_to_Traitor#Uplink|Uplink]] in their [[PDA]] which allows them to buy [[Syndicate Items|all sorts of gear]]. They are also meant to do specific directives from the [[Syndicate]].

== [[Nuclear Operative]] ==
[[File:Nuclear Operative.gif|64px]]
''OPERATIVES STANDBY. YOUR OBJECTIVES ARE SIMPLE. DELIVER THE PAYLOAD AND GET OUT BEFORE THE PAYLOAD DETONATES. BEGIN MISSION.''

A nuclear operative is an antagonist employed by the [[Syndicate]], presumably operatives from ERT or bored greytiders. Your objective is simple, break in and detonate the Nuclear Fission Device. Escape is optional, just get the nuke detonated. You get to buy lots of [[Syndicate Items|fun things]] to help in your mission.



== [[Zombie]] ==
[[File:ZombieIcon.png|64px]]
''Braainnssss...''

Zombies are conversion antagonists whose sole purpose is to infect and convert as much of the crew as possible. They boast strong resistances to various damage types and are able to regenerate themselves through feasting on unsuspecting crew members. Zombies propagate through biting their victims, transmitting a deadly infection that will cause them to turn into a zombie when they succumb.

==[[Cosmic Cult]]==
[[File:Cosculticon.png|96px]]
''Beckon the Unknown. Call the curtain close.''

The Cosmic Cult are conversion antagonists who have a few objectives. Siphon a certain amount of entropy from the crew, convert a certain number of the crew into the cult, get the Monument to tier 3, and then beckon the great Unknown, calling the curtain close on this universe.

= Side Antagonists =
Those antagonists are typically subservient to another antagonist or have a small chance to appear during any round type. While they are not really the main focus of the round, they can range from being a minor nuisance to a threat to the entire crew.


== [[Revenant]] ==
[[File:Revenant.gif|64px]]
''Rev in medbay! No, the other rev!''

This is a random event antagonist that sucks up the soul of people when they die, they also have the ability to check souls when a human is alive.

== [[Space Ninja]] ==
[[File:Space Ninja.png|64px]]
''Nothing personnel kid.''

Space Ninjas are a special type of ninja, specifically one of the space-faring type. The vast majority of space ninjas belong to the Spider Clan, a cult-like sect which has existed for several hundred years. They are an antagonist that can appear during most gamemodes, they are given some goals and a bunch of very powerful tools to accomplish said goals.

== [[Space Dragon]] ==
[[File:Space Dragon.gif|64px]]
''All of the stations on the rim are out there fighting space dragons, and what do I get?''

The Space Ninja is a midround antagonist that can appear during most gamemodes, they are given some goals and a bunch of very powerful tools to accomplish said goals.

File:Cosculticon.png

2025-06-27T15:37:52Z

HTMLSystem: A person in black and purple armor. They hold a large scythe and a large sword.

== Summary ==
A person in black and purple armor. They hold a large scythe and a large sword.

Getting Started

2025-06-27T00:28:57Z

HTMLSystem: Removed the mention of changlings and added cultists.

Welcome to Space Station 14! You and your crewmates have just started your shift aboard a [[Nanotrasen]] [[Maps|space station]]. Each of you has a [[Jobs|job to do]], hopefully having fun in the process.

Please make sure you understand the [https://delta-v.org/rules.html Server Rules], which you can see at any time by pressing {{key press|F1}}.

If you have any questions:
# Consult this guide
# Consult your colleagues on shift in person, over [[Radio|radio]], or via [https://discord.gg/deltav Discord]
# Ask [[Administrators]] for [[Administrators#How_Do_I_Contact_an_Admin?|in-game help (or ''ahelp'')]] by hitting {{key press|Escape}}, selecting '''Admin Help'''. This lets you send a message to all online administrators.

You are all a crew of [[Playable Species|people]] who work together with some of the crew being [[psionics]]. You should not be harming each other unless you have an extremely good reason. Before resorting to violence, call [[Security Officer|Security]] over the [[Radio]], and attempt to stun and detain <s>the passenger</s> your assailants. Do not commit murder [[#Antagonists|unless it's your job to]].

Reminder that Delta-V is a [[Slang#MRP|MRP]] server and we expect a certain amount of [[roleplay]] from you. [[Slang|Here]] you can find a list of commonly used terms and abbreviations that the community uses.

== Gameplay ==

SS14 is a role playing game at its core — you play as a member of the station crew, which you can customize from the lobby prior to joining the game. From there, you can select the jobs your character performs, what they look like, how people are expected to refer to them, etc. If you're new, try out the [[Passenger]], or [[Janitor]] jobs as they are perfect for learning the controls and layout of the station while not being ''too'' overwhelmed.

Note about the priority system: The game goes through the jobs one by one, '''starting with command roles''', and checks if anyone has the role set to high, picking randomly between anyone that does. If no one has it set to high, it repeats for medium, then low. Only after command roles are picked does the game fill other roles. '''Even if you set a command role to low, there is a fair possibility you will have that responsibility.'''

As soon as you spawn, you’re expected to act as your character, or "[[Roleplay|In Character]]" ('''IC''') using the [[Standard Operating Procedure]] and follow [[Alert Procedure]]. When you’re in character, you forget any knowledge of previous rounds or the world outside; and play as if you're actually a member of the station's crew. This means you treat other players as you would for your '''respected''' in real life work colleagues and the station as your workplace. i.e, no rampant killing, harming, stealing, hacking without good reason. Remember that other players are involved, so try to refrain from bad language, harassment, and other poor-roleplay acts.

"[[Roleplay#Out_of_Character|Out of Character]]" ('''OOC''') is the opposite of '''IC'''. This includes any conversations you have outside the game world e.g, in the designated '''OOC''' chat, in a private message, or a chat with your friends. You shouldn’t discuss the current round or anything that’s '''IC''' in '''OOC''' channels. Likewise, anything you see or read in '''OOC''' '''''must not''''' be used by your character in the game. If one of your friends identifies a [[traitor]], or tells you they’re dying in a certain location, you '''''must ignore it''''' and go about your business as if you don't know. Going to help them is known as [[Roleplay#Metagaming|'''metagaming''']], and ''will get you banned''.

If you suspect a player in game is [[Roleplay#Metagaming|metagaming]] (for example, if you're a [[Traitor]] and someone kills you before you've done anything to them), you should report them via [[Administrators#How_Do_I_Contact_an_Admin?|''Ahelp'']] or [https://discord.gg/deltav the Delta-V Discord].

When playing, you [[Radio|talk to other crewmembers]], [[Interactions|interact]] with your surroundings, and walk around in areas that you have [[Hacking|access]]. If you get lost, there are [[Maps]] online that you can reference.

To summarize, when you’re in game:

<table>
<tr>
<th>DO</th>
<th>DON'T</th>
</tr>
<tr>
<td>
<ul>
<li>Keep in character.</li>
<li>Act like your character would in the situation.</li>
<li>Ask for help if you need it.</li>
<li>Communicate in-game politely.</li>
</ul>
</td>
<td>
<ul>
<li>Discuss the round elsewhere (until the round is over).</li>
<li>Share information about the round in OOC.</li>
<li>Kill / harm without first reading the [https://delta-v.org/rules.html Server Rules].</li>
<li>Harass other players (ruin their gameplay).</li>
</ul>
</td>
</tr>
</table>

=== Antagonists ===

To give the game a bit of excitement, some players are selected to work against the crew by acting as [[Antagonist]], or '''antag'''. There are various types of antags, like [[Traitor|traitors]] and Cultists. You can volunteer to play as an '''antag''' through the character editor at the start of a game.

Even if you volunteered to be an antag, it is not guaranteed that you will be picked. When a round starts, players will be automatically and randomly selected to fill the antagonist roles. The game will notify them of their assignment in chat. If you're not sure if you've been selected, press {{key press|C}}. If you're an antag, you'll have a list of objectives. If not, you're a normal employee.

'''Being an [[antagonist]] is not an excuse to go on a murder spree.''' Your job is to complete your objectives. On occasion, that will include the assassination of a target. Sometimes it will include escaping alive or dying a glorious death. How you complete your objectives is up to you, but keep in mind that there are other [[Syndicate]] agents on the station that have their own objectives. While your objectives take priority and might not always align with theirs, you generally shouldn't recklessly endanger their missions by destroying the station or going on a blind murder spree. If you can manage to identify them, working with them can actually be mutually beneficial!

As always, try to have fun with it! (Ideally, not at everyone's expense... but that’s up to you.)

==== Responding to Antagonists ====

If you suspect someone is an antagonist, '''report them to [[Security Officer|security]] as fast as possible''', and do what you can to protect yourself. Remember, antagonists are [[Space Law|legally]] people too, so they must be arrested and prosecuted if at all possible.

==== Self-Antag ====

Self-Antagonizing ('''self-antag''') is when you are NOT an [[antagonist]], yet you go out of your way to break the law, damage the station, or commit murder. Breaking the [[Space Law|law]] is not inherently self-antagonizing, but attacking your crewmates, attempting to break into high-security areas, and hoarding items your job doesn't need ''is''. Self-antagonizing can and will get you [[Administrators#I_Was_Banned!|banned]].

Unless the game tells you that you are an [[antagonist]], you are a normal member of the crew, and your only objective is to complete the shift in your designated role.

==== RDM ====

Random Death Match ('''RDM''') is the act of attempting to kill someone for no reason. The other person is likely an [[Antagonist]] if you are being attacked. If you're unsure, [[Administrators#How_Do_I_Contact_an_Admin?|ask the admins]].

{{Guides Menu}}

Atmospheric Technician

2025-06-26T16:37:34Z

HTMLSystem: Added the hardsuit, firesuit, and fire-fighting remote to equipment.

{{Rewrite}}

{{Job_Header
|department=ENGINEERING
|maincolor=854100
|secondarycolor=a75200
|image=Atmospheric Technician.png
|title=Atmospheric Technician
|difficulty=Hard to Very Hard
|requirements=10 hours in [[Station Engineer|Engineering]]
|access=Maintenance, Engineering, External, Atmospherics
|extendedaccess=None
|supervisors=[[Chief Engineer]]
|subordinates=None
|duties=Set up the TEG. Restore breathable atmosphere to depressurized areas. Ensure the station's air remains at liveable conditions. Get bored and create tritium. Create Frezon to sell for massive profits.
|guides=[[Power]], [[Basics of Atmos]], [[Practical Atmospherics]], [[Pipes and vents]], [[Gases]], [[Setting up the mix chamber]]
|aliases=Life Support Technician, Plasma Scientist, "Atmos", "Atmosian"}}
As an atmospheric technician, your primary job is to maintain a safe and breathable atmosphere inside the station. As a member of the engineering department, you may also be expected to double as a [[Station Engineer]] <s>if they don't know what they're doing</s> in exceptional circumstances.

The primary threats to a safe and breathable atmosphere inside the station are:

* Air escaping into space due to intentional or unintentional removal of walls or floor tiles (''spacing'')
* Buildup of unpleasant or outright hazardous [[#Gases|gases]] such as ammonia or plasma

Atmospheric technicians are essential to keeping the station alive and breathing, and consequently are ineligible to be [[Traitor]].

==Quick-Start==
# Grab [[#Equipment|equipment]] from your atmospheric technician locker. You should grab at least a hardsuit or fire suit and helmet, a gas mask, gas tank, a gas analyzer, a holofan projector, and a fire-fighting remote. Consider grabbing inflatable walls, inflatable doors, steel sheets, and metal rods to be ready to fix spacing.
# Find the distro pipe and inspect its pressure and temperature using your [[#Equipment|gas analyzer]]. If the pressure is zero and shows no sign of rising, take corrective action.
# (''optional'') Set filters to recover gases from the waste pipe. Because [[Pipes_and_vents#Gas_Miner|gas miners]] are available on most stations, this step is not very important. And, unless [[Pipes_and_vents#Air_Scrubber|scrubbers]] are set to siphoning, there will only be waste gases in the waste pipe.
# Deliver [[#Equipment|portable scrubbers]] to locations that expect miasma build up. This is usually the [[Medical#Cloning_and_Morgue|cloning room or morgue in the medical bay]].
# Monitor the station's radio or patrol the station yourself for spacing or other atmospheric issues. Fix issues if they arise.
# Make sure that [[Antagonist|suspicious people]] are not sabotaging your department.

==Equipment==
Like your fellow [[Station Engineer|Station Engineers]], you start with a full belt of tools. Atmospheric technicians may also have access to:

{| class="wikitable"
|+ Atmospheric Equipment
|-
! Picture !! Name !! Description
|-
| [[File:OxygenTank.png|64px]] || Portable Oxygen Tank || Small enough to carry around. Hook this up to a mask, and you can have a portable air supply to breathe while in space or fixing leaks. People will probably ask you for these.
|-
| [[File:Atmos_hardsuit.png|64px]] || Atmos hardsuit || A hardsuit given to atmospheric technicians. Completely fire-proof.
|-
| [[File:Atmos_firesuit.png|64px]] || Atmos Firesuit || A firesuit given to atmospheric technicians. Completely space proof and fire proof. Slightly faster than the hardsuit, but can't survive higher pressures like the atmos hardsuit.
|-
| [[File:Gas Analyzer.png|64px]] || Gas Analyzer || Use this to analyze the composition of gases in the air around you, or to measure the temperature and pressure of gases inside pipes.
|-
| [[File:Portable Scrubber.png|64px]] || Portable Scrubber || Can be wrenched down to scrub waste gases to an internal tank. Useful for quickly containing gas leaks. Must be emptied once full.
|-
| [[File:Fire-fighting_remote.png|64px]] || Fire-fighting Remote || A door remote that can be used to bolt, open, close, and EA regular airlocks, maintenance airlocks, and firelocks. Important for not allowing people to open a door that clearly leads to a room full of tritium.
|-
| [[File:Holofan Projector.png|64px]] || Holofan Projector || [[File:Holofan.png|thumb|right|A holofan projection]] Creates a holographic firelock (''holofan'') that blocks gas flow but allows objects to move through them. Holofans last forever until you take them down. Stores 6 charges, each charge is 1 holofan. You gain a charge back everytime you take down a holofan. Extremely useful when repairing a hull breach, since they will safely block the flow of station atmosphere while still giving access to move around freely to work.
|}

==Atmosia==
''Main article: [[Basics_of_Atmos|Basics of Atmos]]''

Atmospherics, sometimes referred to as Atmosia, is where most of the station's air handling machinery is located. Each station has a different atmospherics layout. While seasoned atmospheric technicians may have atmospheric layouts memorized, frequent <s>useless station remodeling</s> station engineering changes mean that it is more important to be able to quickly understand the layout of the station that you're currently working on.

==Gases==
''Main article: [[Gases]]''

==Pipes and Machinery==
''Main article: [[Pipes and vents]]''

==Pressure and moles==
[[File:Gas analyzer.png]]

All gas can be quantified by its pressure, mole amount, and temperature. These three variables are closely related and directly affect one another. If you add more gas(# of moles) to a given area, the pressure will increase. Take the same amount of moles and lower the volume by using a smaller room and the pressure will be even larger. If you then heat up the gas, the pressure will be even larger still. The opposite is also true, less gas means lower pressure. cooling down gas will also lower the pressure. Volume, or size of the room, also plays a role in pressure. A larger area will require more gas while a smaller area will require less gas to reach the same pressure. using this knowledge we can see why space has a low pressure because the area and temperature are so low.

Moles are a way of measuring how much gas is present in a given area. A higher pressure does not always mean more of a gas in the given area. If you want to physically fit a larger amount of a gas in a specific area, you will need to cool the gas down to lower the temperature, thus lowering the pressure allowing more moles to fit inside the given area.

If you open a canister will 100 moles of air into a large hallway, you will hardly notice a difference in pressure. However, if you open the same tank in a small room the pressure difference will be greater.

The standard livable air requirements are about 20 moles of oxygen and 80 moles of nitrogen at a pressure of 101kpa and temperature of 20° Celsius. If you have less than 20 moles of oxygen present, your character will begin to gasp and take oxygen deprivation damage. If the pressure is any lower or higher than 101kpa, your character will begin to take brute damage in relation to the depressurization or overpressurization levels. If the temperature is much lower or higher than 20°C, you risk your character taking burn damage from the extreme cold or heat.

Generally speaking:
*More gas(# of moles) = more pressure.
*Less gas(# of moles) = less pressure.
*Hot gas = more pressure.
*Cold gas = less pressure.
*Large hallway = more moles/higher temperatures needed to notice pressure change.
*Small hallway = less moles/higher temperatures needed to notice pressure change.

==Air Alarms==
Air Alarms can be found all over the station in form of panels. They connect and manage active vents, scrubbers, air sensors and firelocks together. They have 3 possible states: Normal, Warning and Alarm. Warning indicates possible build-up of dangerous gases or other issues with the atmosphere that aren't directly lethal. The Alarm state it will close all firelocks connected to that panel, indicating a possibly lethal threat, like a spacing.

At the bottom of the panel there is a mode selector. You can select between:
* Filtering - Normal filtering, removes all gases except Nitrogen and Oxygen.
* Filtering (wide) - Enables WideNet which also filters tiles adjacent to a scrubber.
* Fill - Turns off the scrubbers and fills the room through the vents.
* Panic - Sucks out all gases and turns off the vents.

You can view the atmosphere composition on the tile a sensor is located by using the Sensors tab, which gives you detailed insights about the gases, pressure and temperature.

==Dealing with gas leaks==
Gas leaks are a random even that occurs on the station. They can be usually quickly located by reports on the radio and firelocks going off. Most gases aren't directly harmful and are filtered off by the scrubbers network, but Tritium, Plasma or Frezon need to be quickly removed using Portable Scrubbers, usually found in the Atmos area of the Engineering department.

The most effective way of containing extreme pressures and temperatures (like these caused by plasma fires) is spacing the room, which can be done using an RCD or a fire axe.

==Space wind==
Explosive decompression, or ''space wind,'' is caused when a sudden low pressure or depressurization zone occurs and all the atmosphere flows from high pressure to low pressure. Space wind often happens due to a sudden hull breach or when the clown opens the external airlock. All personnel and lose objects in the area will be flung toward the low pressure area as if a gust of wind blows you towards the breach site, thus the name 'Space Wind' is dubbed.

Space wind is very deadly to any crew member not wearing hardsuits with internals. Space wind will often suck you far away from safety and toward the breach site. The damage you take from slamming into objects (and objects slamming into you) along with depressurization, lack of oxygen, and freezing temperatures will often quickly kill any unsuspecting crewmember who gets caught.

==Useful trivia and tricks==
*Always be prepared to fix a breach. Carry your Atmospherics hardsuit or firesuit with you so you can survive long enough to fix any breach at a moments notice.
*The Atmospherics firesuit is space proof and functions like a hardsuit. Just make sure you wear the helmet with it or else it wont give you any protection.
*The standard air mix is 21% oxygen and 79% nitrogen @ 101.325 kPa at 293.15K (20°C).
*A quick and dirty way to vent high pressure or unwanted gases is to expose the area to open space. Breach a wall or open an airlock to quickly suck out all the atmosphere. Just be sure you have the area sealed off and no crewmembers get caught in the depressurization zone!
*Overpressurization can be just as harmful as depressurization!
*A pressurized pipe will violently decompress if unwrenched!
*If you want to check the pressure and temperature of a pipe, hold your gas analyzer in hand and left-click on the pipe.
*Make sure that the distro loop never connects to anything else like the mix or waste loop. unless you want to flood the station with superheated plasma and risk getting an angry admin message.

{{Jobs Menu}}
[[Category:Jobs]]

File:Atmos firesuit.png

2025-06-26T16:34:51Z

HTMLSystem: A black firesuit with yellow and blue stripes.

== Summary ==
A black firesuit with yellow and blue stripes.

File:Atmos hardsuit.png

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HTMLSystem: A yellow and blue hardsuit.

== Summary ==
A yellow and blue hardsuit.

File:Fire-fighting remote.png

2025-06-26T16:26:23Z

HTMLSystem: A door remote with an orange screen.

== Summary ==
A door remote with an orange screen.

Practical Atmospherics

2025-06-26T16:02:59Z

HTMLSystem: Made the picture of Tortuga slightly bigger (200 pixals to 300 px)

{{Rewrite|todo=Big rewrite needed - Please move information about the TEG, trit production, and frezon productions to their own separate pages}}

= Atmospherics (Departmental layout) =
Atmospherics (commonly referred to as "atmos" or "atmosia") is a subset of the engineering department that is responsible for providing breathable area to all of the station and getting rid of toxins from the area. There are many areas of atmos that have specific names and serve a specific purpose.

== The Distribution System ==

The Distribution System (usually shortened to "distro") is a part of atmos that is responsible for distributing breathable area around the station and getting rid of toxic gases from the environment. The Distribution System is split up into two part, "distro" and "waste." Distro is what fills the station with breathable area via vents. This network of pipes is usually blue. Waste is what toxic gases are siphoned into via scrubbers. This network of pipes is usually red.
Usually, a station can go about 40 minutes to an hour without any of this being turned on, but that's only if there isn't anything horrible that goes wrong like a gas leak or an area getting spaced. So it should still be one of your topped priorities to get it on and working.

=== Gas Chamber ===
''Note: Replace image to show the unique DeltaV gas textures''
[[File:Atmos holding chambers.png|thumb|Gas holding chambers]]
Every distro setup will have gas chambers for gases that you can mine and collect during the shift. At the least, there will be 2 chambers, one for oxygen and one for nitrogen. These two chambers will always have gas miners (with the Exception of Shoko, which has no oxygen miner) that give you infinite oxygen and infinite nitrogen. Most stations will have another chamber that is filled with plasma that doesn't have a miner and a few more extra chambers to collect other gases that might show up during the shift from gas leaks or dead bodies.

=== Distro Loop ===
Each distro system may vary from station to station on how complete they will be. Some will be very simple and easy to understand. Some will be overly complicated and be very confusing to look at. Some will be completely empty and the mappers have left you 3 stacks of steel to build it all from scratch. 
[[File:Elegance_atmos.png|200px]] [[File:Lighthouse_atmos.png|300px]] [[File:Tortuga_atmos.png|300px]] 
Whatever the situation is, take your time to make sure you're setting it up correctly. All distro set ups should have a gas mixer that is 22%-25% oxygen and 78%-75% nitrogen. This is different from upstream because of [[Playable Species|Harpies]], who need oxygen to be at least 22% so they don't suffocate. It varies depending on what you prefer your setup to be. the percentage of oxygen should not go above 30%, as that makes air alarms start to go off.
Distro should also be about 20C (293.15K) as this is a safe temperature for all species. There will usually be a heater and freezer connected to distro and set to 293.15K to achieve this temperature, but this isn't always needed.
To optimize distro, you should set the distro pump to 200 kPa. This allows more gas to fill the pipe network across the station and allow it to fix any spacing that happens. it is ill-advised to set the pump any higher than 200 as someone could easily sabotage distro by placing an air injector in a closed room or a passive vent into space, emptying the entire distro network and not allowing it to refill any space rooms.

=== Waste Loop ===
The waste line is something that you usually have to build yourself. This can be achieved by placing gas filters in front of every gas chamber and setting each gas filter to filter out a specific gas. There should be pipes under the walls to gas chambers that will automatically connect to the gas filters you place. Use a t-ray scanner to see the pipes.
It is ill-advised to filter oxygen or nitrogen into their respective gas chambers unless you have a heater and freezer on your distro/waste line. Fires happen around the station. When fires/frezon leaks happen, the superheated/supercooled gas gets siphoned into waste. If there's nothing to regulate the temperature of these gases, superheated/supercooled gas will then be sent into the distro network, burning/freezing the entire station.

== Gas Recycler ==
A handful of stations may come with a gas recycler, if they do not then you can make one when Epistemics researches it.
One particular station, called Shoko Station, *relies* on a recycler, as it has no oxygen gas miner.
A gas recycler can turn carbon dioxide and nitrous oxide into oxygen and nitrogen, respectively. It requires 3000 kPa and the gas flow inside of it to be 300C to function. Pressure can be caused by other gases being added to the recycler loop.
The gases that leave the recycler will still be heated, so it's important to cool them in some way. Either through the use of freezers or cooling via space.

==Mix Chamber==

[[File:Mix chamber in use.png|thumb|A mix chamber in use]]

The mix chamber is an empty holding area with its own separate loop of pipes and pumps in atmospherics. The mix loop is generally marked with brown pipes and the holding chamber can usually be found close to the external hull, separated from the station by reinforced walls and windows. There will be an emergency button nearby to vent the chamber to space if you need to dump your mix in case an accident arises, or you just wish to reset the chamber for a new mix. The mix chamber is here for you to experiment with different mixes, ratios, temperatures, and pressures while combining gases.

On most stations the Mix chamber will loop around to either to the distro loop, or back to the waste loop. It is generally a good practice to have your mix loop flow back into the waste loop to recycle any unspent gases. You should '''NEVER''' have the mix loop flow into distro unless you have a [[Traitor|very good reason.]] Most savvy Atmospherics Technicians physically disconnect the mix loop from distro at round start to prevent an easy sabotage target or accident from occurring later in the round.

See the guide to [[Gases]] if you are interested to learn how different gases interact with each other at different temperatures and pressures.

See the guide to [[Setting up the mix chamber]] if you want to learn how to properly and safely use the mix chamber.

= Setting up and understanding the Thermoelectric Generator (TEG) =

{{Stub}}

''This section is currently an incomplete placeholder guide. I do not know this stuff sufficiently to write the guide. For better info, check #atmos thread on Discord.''

''Note: Please make a separate page for the TEG''

The TEG has two pipe inputs for gasses - an input for a hot gas, and an input for a cold gas.

The TEG works by transferring heat energy from the hot input gas to the cold input gas, generating power as part of the transfer. Currently (June 2025) the amount of heat transfered from a gas when it passes through the TEG is 10% - meaning 90% of heat energy in the gas remains. How much heat energy a gas can "contain" is determined by its [[Atmospheric Science#Gasses|specific heat capacity]].

Furthermore the efficiency of the TEG scales with the difference in temperature between the hot gas and the cold gas.

Thus, ultimately for the TEG to work we need:
* A cold gas - the "cold loop"
* A hot gas - the "hot loop"
* Continious flow of both gasses.

== The cold loop - space radiators and cooling the TEG ==

To maintain the TEG's output, the cold loop will need some way to stay cold. Space is cold... sort of. There isn't really anything to give the heat to. Instead, radiators placed outside in space have to release the heat as infrared radiation, which is significantly less effective than exchanging heat with an atmosphere. You will need more radiators.

The best way to use radiators for the cold loop is in parallel, with each radiator having a volume pump going into it and a gas pump going out. These pumps will split up the incoming gas equally and force circulation through the radiator. The speed for the input pumps should each be set as a fraction of the 200L/s maximum speed of the volume pump, divided by the amount of radiators, for example if you had 4 radiators in parallel, the input pumps would need to be set to 50L/s each.

Placing the same radiators in series will mean the output is technically colder, but the heat loss diminishes as the gas cools and passes through more radiators, resulting in a reduction of flow from the smaller pressure difference between the sides of each successive radiator. Flow is just as important as temperature for the cold loop.

Also, radiators in space work better on lattice, as more of the radiator is exposed. Remember that underfloor tiles can be removed using a fireaxe or RCD.

When filling the cold loop, you will want a gas with high heat capacity, such as plasma or possibly frezon, to maximise the amount of energy that can transfer between the loops. The lower temperatures mean your usual cold loop can easily take an entire canister of plasma without causing issues.

== The hot loop - setting up and using the burn chamber ==

There are two ways to get a hot gas for our TEG - we can either heat it up by exposing it to a very hot area (the burn chamber), or by pumping in the hot gasses from a fire. However, because usual fire product gasses (carbon dioxide and water vapor) usually have very poor specific heat capacity, and can be difficult to supply consistantly, almost always the former set up is used. Furthermore, discarding the gas after using it to power the TEG is very very wasteful - recall that only 10% of the gas' heat is used every time a gas passes the TEG!

Therefore instead we set up a system, where a gas is passed through a very hot room through radiators, taking up heat from it, passes through the TEG, and then is pumped back around to be heated up again. This is known as the "hot loop". And the aformentioned hot chamber can be made by, well, starting a fire in it - this is called "the burn chamber".

===''The Burn Chamber'' ===

The burn mix, as it is known, can be made either by mixing gasses from two canisters, or by mixing gas from a plasma can and gas from the oxygen miner. At round start, most TEG loops are unfortunately set up with the far more annoying former.

Usually a mix of 3% plasma and 97% oxygen is used. Plasma and oxygen burn at a ratio of roughly 1:1.4, but the high amount of oxygen meets the 'supersaturation' condition to make tritium, which reacts with oxygen again and is the source of majority of the energy in a burn.

Keep in mind that the pressure will rise with temperature, and depending on how much fuel was added initially, you may find the pressure to be above the 9MPa maximum limit for air injectors, even once the gas has cooled below what is useful for the TEG. Therefore, if you want to add more fuel, the pressure will have to be lowered. The simplest way to do this is using the venting blast doors found on every TEG burn chamber. Alternatively you could build scrubbers or pumps to remove the gas which will reduce the heat lost to space.

Igniting the burn chamber can be done in several ways. Ideally you use an igniter, placed in the burn chamber and linked to a button. However, not all TEG burn chambers come with one, and furthermore the igniter is actually a pretty poor ignition tool.

=== ''The Hot Loop'' ===

The second, crucial part of our set up is the hot gas we will pump through the TEG. This can be in a way understood as a way to transfer heat from out burn chamber to the TEG. Thus, similarly to the cold gas, you want to use a gas with high heat capacity. Practically this usually also means plasma.

We want our hot loop gas to become as hot as possible. This is for a couple reasons, mentioned before - only 10% of a gas' heat is used each time it passes through, and the output of the TEG scales based on the temperature difference between the cold loop and the hot loop.

In a typical hot loop set up there will be 3 critical pumps and 1 critical valve.
* The burn chamber input pump.
* The burn chamber output/TEG input.
* The TEG output.
* The pressure release valve.

Recall, that it is vital there is a continuous flow of gas through the TEG. If the flow stops, the TEG immediately ceases producing power.

You may recall a crucial formula from [[Atmospheric Science]]: pV = nRT. Practically this means the hotter the same volume of gas becomes, the higher its pressure. Because all pumps (including volumetric ones!) have pressure limits, at which they will stop pumping, this means should your pressure get too high, your TEG will "stall".

The pressure release valve is your "emergency button" to reduce pressure should a stall occur. However it is better to avoid a stall in the first place.

A few things can help you in achieving that:
* Use as little gas as possible for your hot loop
* Use volumetric pumps as they have a higher pressure limit. Keep in mind that mixers act as pressure pumps, while filters act as volumetric pumps!
''* Other (add here)''

== A simple step-by-step guide to set up and maintain a station's TEG==

Ok that's a lot of text right? A lot to take in? Yeah. So here is a simple step-by-step to practically set up your TEG at round start, so the station has power.

=The Mix Chamber=

==About this guide==
So you are ready to graduate from Station Engineer to Atmospherics Technician and are looking for something a little more in-depth than laying down wires and clicking on boxes to set up the AME? Well look no further, after reading this you will be smarter than those [[Station Engineer|dummies next door]] and have the skills to show for it!

This guide is designed to walk you through, step by step, in creating your first burn mix using the mix chamber. After completion you should have a better understanding on how the mix chamber functions. If everything is done right you will make your engineer coworkers jealous and will be one step closer to mastering atmospherics! If things go wrong, angry crewmembers will be yelling death threats and the admins will very interested in you! Just remember to always learn from any mistakes and understand where and why something went horribly wrong!

Make sure you have a basic understanding on how atmospherics works.

==First things first==
So you just started your shift as an Atmospherics Technician on space station 14 and want to use the mix chamber. The very first things you should do is grab your equipment. Make sure you have either your firesuit and helmet or atmospheric hard suit and internals available to provide you some protection in case of an accident. Next, be sure to grab your handy dandy gas analyzer to be able to see what's going on inside those pipes. Lastly and arguably the most important thing you should do at round start is to consult with your fellow atmospheric technicians and [[Chief Engineer]]. Declare your intention to use the mix chamber and make sure everyone is on the same page. The last thing you want to have happen is your coworker unwittingly dumping your burn mix into the room by un-wrenching a pipe or finding out that they accidently pumped your burning hot plasma mix into distro.

==Locating the mix chamber==

[[File:Mix chamber 2.png|thumb|An example of a mix chamber]]

Look around atmosia and locate the gas mixers by the different gas holding tanks. Follow the gas mixers outlet pipes until they all combine and terminate into a pump or manual valve that leads out of the station's hull. Look through the window and observe if the pumps lead into a nearby empty chamber containing both inlet and outlet passive vents and a blast door. If you found this, congratulations! you have located your mix chamber!

Some stations, usually the small ones, are not equipped with a mix chamber. If the pipes lead to a vent in open space and you do not see a nearby empty chamber then there is mostly likely no mix chamber on this station. Feel free to contact the head of your department and Centcom to complain about station budget cuts!

==Setting up the pipes==

[[File:Atmosia mix chamber guide.png|thumb|A handy guide with arrows and numbers]]

Every station has a different layout so it is a good practice to always refamiliarize yourself at round start with the mix chamber and the mix loop. After you located the mix chamber follow the pipes that flow into and out of it and get comfortable with where they lead. A general mix loop will take gas from the holding tanks, through gas mixers and into the mix chamber. From there they will exit the chamber and loop into an area where you can connect ports and canisters to extract your gas. Some layouts do not have a canister loop and you might have to create your own if needed. Finally the mix loop will connect into waste where the unused gas will be returned to the gas holding chambers to be recycled and reused at a later time. Once you are 100% sure where the mix loop is you are ready to add gas to the chamber.

#Triple check that the pipes leading out of the mix chamber '''do not''' flow into distro. if they do, either physically disconnect them or manually toggle off the pumps.
#Toggle off all the gas pumps, except oxygen and nitrogen, leading out of the gas holding chambers.
#toggle off all the gas mixers with the exception the oxygen and nitrogen mixers used for distro.
#Toggle off all the pumps leading out of the mix chamber up to the waste loop.
#Toggle closed the mix chamber blast doors using the button.
#Use your gas analyzer on the pipes leading into and out of the mix loop and check to see that there is no gas in the pipes. If there is, locate where the gas is coming from and toggle that pump closed. Drain the mix loop by locating the mix to waste pump at the end of the mix loop and toggle it open until the gas is gone. Repeat until all gas is gone.
#Locate the pumps leading out of the oxygen and plasma holding chambers and set them to max pressure.
#Locate where the oxygen flows into the next gas mixer down the line and max the pressure. Be sure to configure the input ratios depending on what side of the mixer the oxygen is flowing into. '''Do not touch the gas mixers used with oxygen and nitrogen in the distro loop.'''
#Work your way down the gas mixer line maxing the pressure and configuring the input ratios until you reach the mixer for the plasma holding tank. Set the input for oxygen to be at 66% and the input for plasma to be 33% and set the pressure to be around 100-200kPa.
#Continue down the line up to the chamber opening up and maxing the pressure of all pumps until you see gas flow into the mix chamber.

If everything is done correctly you should see plasma gas in the mix tank. The exact composition of the gas inside should be 66% oxygen and 33% plasma. If you see this then congratulations! you have created your very own burn mix!

''(note that you may need to adjust the output pressure of the oxygen and plasma mixer. Too much pressure will clog up the mix chamber and waste pipes with water vapor waste gas as the plasma burns. Too little of a pressure and the plasma fire will burn itself out. Experiment with different pressures to find one you like!)''

If you don't see any gas inside the mix chamber chances are that you forgot to toggle open a pump or max the pressure. double check that the blast doors are closed and that all the outlet pumps on the mix chamber are toggled off. Follow the mix loop back from the mix chamber and use your gas analyzer on each pipe segment until you find where the pressure is at. double check that the right pumps are open and that the pressure is maxed. If there is still no gas flowing double check the mixers and check to see the correct inlet ports are set to the right percentage on the mixer interface. If there ''still'' isn't gas in the chamber and you double checked every pipe pump and valve then check that there is gas in the holding tanks. Some stations do not have a plasma miner or there might be a breach venting all your gas into space.

==Igniting the burn mix==
So, your mix chamber is full of sparkling plasma and oxygen, what's next? Firstly, understand that plasma will ignite at higher temperatures. A plasma fire requires both a steady flow of oxygen and plasma to remain ablaze and will create waste gas in the process. There are many ways to ignite your burn mix but the most common and safest way is to wrench a heater on one of the burn mix outlet pipes. A quicker, dumber, more flashier way is to chuck a lit welder or fire source into the chamber before pressurizing it.

[[File:Heater burn mix location.png|thumb|A suitable location for a heater to combust the burn mix]]

Lets go with the heater method. Simply find a heater nearby in atmospherics or steal one from your silly engineer coworkers. Alternatively you can craft one using a machine frame and some components. Once you have acquired your heater, drag that bad boy over to the mix chamber's outlet pipe. Make sure the location you have chosen has pressurized gas from the chamber, use your gas analyzer to check! You may need to add or remove some pipes and a pump to get a suitable location. Once you have the right location, use your wrench to secure it to the pipe. Open the interface, max out the temperature and turn it on. Depending on the amount of burn mix and its temperature you may need to wait a couple of seconds before it combusts into a beautiful plasma fire. Heaters(and freezers) will sometimes act strangely on horizontal and elbow pipes and not heat up the gas inside.. You may need to move it around until you find a place that works for you.

''With the addition of holofans, it may be easier to use a holofan to hold back the gas and allow you entry to chuck a lit welder into the burn chamber.''

Once your burn mix is lit you may notice it going out sporadically. This is because we still have the mix to waste pipes toggled off and the plasma fire is creating water vapor as a waste gas witch is taking up valuable space, displacing oxygen and plasma and snuffing out our fire. Simply open up your mix loop to waste and watch as the gas gets syphoned out through the loop back into the gas holding chambers. You may need to manually vent the mix chamber using the blast door toggle button to speed up the venting process. Once you have the mix loop connected to the waste loop, plasma and oxygen will continuously flow from the gas holding chambers into the mix chamber, combust into flame, and work its way out through the loop back into the holding chambers ready to start its journey once again.

Congratulations! you now have a fully self sufficient burn mix! The fire will continue to burn until you either run out of oxygen or plasma, or until the waste loop cant keep up with the pressure. Feel free to sit back and relax for a time while watching your burn mix combust into flame.

==What now?==
Now that we have a stable plasma fire, now what? Well, that's up for you to decide! Experiment with different plasma and oxygen ratios and see how it influences the temperature and pressure. Perhaps try to introduce a third gas into the chamber and see what happens. Extract your burning hot gas into a canister and drag it along behind you to show it off to the crew while grabbing a well deserved snack and drink at the bar. The possibilities are yours to decide! have fun and remember to enjoy the remainder of your shift aboard Space Station 14.

{{Guides Menu}}

Practical Atmospherics

2025-06-26T16:02:15Z

HTMLSystem: Edited the format of the distro pictures

{{Rewrite|todo=Big rewrite needed - Please move information about the TEG, trit production, and frezon productions to their own separate pages}}

= Atmospherics (Departmental layout) =
Atmospherics (commonly referred to as "atmos" or "atmosia") is a subset of the engineering department that is responsible for providing breathable area to all of the station and getting rid of toxins from the area. There are many areas of atmos that have specific names and serve a specific purpose.

== The Distribution System ==

The Distribution System (usually shortened to "distro") is a part of atmos that is responsible for distributing breathable area around the station and getting rid of toxic gases from the environment. The Distribution System is split up into two part, "distro" and "waste." Distro is what fills the station with breathable area via vents. This network of pipes is usually blue. Waste is what toxic gases are siphoned into via scrubbers. This network of pipes is usually red.
Usually, a station can go about 40 minutes to an hour without any of this being turned on, but that's only if there isn't anything horrible that goes wrong like a gas leak or an area getting spaced. So it should still be one of your topped priorities to get it on and working.

=== Gas Chamber ===
''Note: Replace image to show the unique DeltaV gas textures''
[[File:Atmos holding chambers.png|thumb|Gas holding chambers]]
Every distro setup will have gas chambers for gases that you can mine and collect during the shift. At the least, there will be 2 chambers, one for oxygen and one for nitrogen. These two chambers will always have gas miners (with the Exception of Shoko, which has no oxygen miner) that give you infinite oxygen and infinite nitrogen. Most stations will have another chamber that is filled with plasma that doesn't have a miner and a few more extra chambers to collect other gases that might show up during the shift from gas leaks or dead bodies.

=== Distro Loop ===
Each distro system may vary from station to station on how complete they will be. Some will be very simple and easy to understand. Some will be overly complicated and be very confusing to look at. Some will be completely empty and the mappers have left you 3 stacks of steel to build it all from scratch. 
[[File:Elegance_atmos.png|200px]] [[File:Lighthouse_atmos.png|300px]] [[File:Tortuga_atmos.png|200px]] 
Whatever the situation is, take your time to make sure you're setting it up correctly. All distro set ups should have a gas mixer that is 22%-25% oxygen and 78%-75% nitrogen. This is different from upstream because of [[Playable Species|Harpies]], who need oxygen to be at least 22% so they don't suffocate. It varies depending on what you prefer your setup to be. the percentage of oxygen should not go above 30%, as that makes air alarms start to go off.
Distro should also be about 20C (293.15K) as this is a safe temperature for all species. There will usually be a heater and freezer connected to distro and set to 293.15K to achieve this temperature, but this isn't always needed.
To optimize distro, you should set the distro pump to 200 kPa. This allows more gas to fill the pipe network across the station and allow it to fix any spacing that happens. it is ill-advised to set the pump any higher than 200 as someone could easily sabotage distro by placing an air injector in a closed room or a passive vent into space, emptying the entire distro network and not allowing it to refill any space rooms.

=== Waste Loop ===
The waste line is something that you usually have to build yourself. This can be achieved by placing gas filters in front of every gas chamber and setting each gas filter to filter out a specific gas. There should be pipes under the walls to gas chambers that will automatically connect to the gas filters you place. Use a t-ray scanner to see the pipes.
It is ill-advised to filter oxygen or nitrogen into their respective gas chambers unless you have a heater and freezer on your distro/waste line. Fires happen around the station. When fires/frezon leaks happen, the superheated/supercooled gas gets siphoned into waste. If there's nothing to regulate the temperature of these gases, superheated/supercooled gas will then be sent into the distro network, burning/freezing the entire station.

== Gas Recycler ==
A handful of stations may come with a gas recycler, if they do not then you can make one when Epistemics researches it.
One particular station, called Shoko Station, *relies* on a recycler, as it has no oxygen gas miner.
A gas recycler can turn carbon dioxide and nitrous oxide into oxygen and nitrogen, respectively. It requires 3000 kPa and the gas flow inside of it to be 300C to function. Pressure can be caused by other gases being added to the recycler loop.
The gases that leave the recycler will still be heated, so it's important to cool them in some way. Either through the use of freezers or cooling via space.

==Mix Chamber==

[[File:Mix chamber in use.png|thumb|A mix chamber in use]]

The mix chamber is an empty holding area with its own separate loop of pipes and pumps in atmospherics. The mix loop is generally marked with brown pipes and the holding chamber can usually be found close to the external hull, separated from the station by reinforced walls and windows. There will be an emergency button nearby to vent the chamber to space if you need to dump your mix in case an accident arises, or you just wish to reset the chamber for a new mix. The mix chamber is here for you to experiment with different mixes, ratios, temperatures, and pressures while combining gases.

On most stations the Mix chamber will loop around to either to the distro loop, or back to the waste loop. It is generally a good practice to have your mix loop flow back into the waste loop to recycle any unspent gases. You should '''NEVER''' have the mix loop flow into distro unless you have a [[Traitor|very good reason.]] Most savvy Atmospherics Technicians physically disconnect the mix loop from distro at round start to prevent an easy sabotage target or accident from occurring later in the round.

See the guide to [[Gases]] if you are interested to learn how different gases interact with each other at different temperatures and pressures.

See the guide to [[Setting up the mix chamber]] if you want to learn how to properly and safely use the mix chamber.

= Setting up and understanding the Thermoelectric Generator (TEG) =

{{Stub}}

''This section is currently an incomplete placeholder guide. I do not know this stuff sufficiently to write the guide. For better info, check #atmos thread on Discord.''

''Note: Please make a separate page for the TEG''

The TEG has two pipe inputs for gasses - an input for a hot gas, and an input for a cold gas.

The TEG works by transferring heat energy from the hot input gas to the cold input gas, generating power as part of the transfer. Currently (June 2025) the amount of heat transfered from a gas when it passes through the TEG is 10% - meaning 90% of heat energy in the gas remains. How much heat energy a gas can "contain" is determined by its [[Atmospheric Science#Gasses|specific heat capacity]].

Furthermore the efficiency of the TEG scales with the difference in temperature between the hot gas and the cold gas.

Thus, ultimately for the TEG to work we need:
* A cold gas - the "cold loop"
* A hot gas - the "hot loop"
* Continious flow of both gasses.

== The cold loop - space radiators and cooling the TEG ==

To maintain the TEG's output, the cold loop will need some way to stay cold. Space is cold... sort of. There isn't really anything to give the heat to. Instead, radiators placed outside in space have to release the heat as infrared radiation, which is significantly less effective than exchanging heat with an atmosphere. You will need more radiators.

The best way to use radiators for the cold loop is in parallel, with each radiator having a volume pump going into it and a gas pump going out. These pumps will split up the incoming gas equally and force circulation through the radiator. The speed for the input pumps should each be set as a fraction of the 200L/s maximum speed of the volume pump, divided by the amount of radiators, for example if you had 4 radiators in parallel, the input pumps would need to be set to 50L/s each.

Placing the same radiators in series will mean the output is technically colder, but the heat loss diminishes as the gas cools and passes through more radiators, resulting in a reduction of flow from the smaller pressure difference between the sides of each successive radiator. Flow is just as important as temperature for the cold loop.

Also, radiators in space work better on lattice, as more of the radiator is exposed. Remember that underfloor tiles can be removed using a fireaxe or RCD.

When filling the cold loop, you will want a gas with high heat capacity, such as plasma or possibly frezon, to maximise the amount of energy that can transfer between the loops. The lower temperatures mean your usual cold loop can easily take an entire canister of plasma without causing issues.

== The hot loop - setting up and using the burn chamber ==

There are two ways to get a hot gas for our TEG - we can either heat it up by exposing it to a very hot area (the burn chamber), or by pumping in the hot gasses from a fire. However, because usual fire product gasses (carbon dioxide and water vapor) usually have very poor specific heat capacity, and can be difficult to supply consistantly, almost always the former set up is used. Furthermore, discarding the gas after using it to power the TEG is very very wasteful - recall that only 10% of the gas' heat is used every time a gas passes the TEG!

Therefore instead we set up a system, where a gas is passed through a very hot room through radiators, taking up heat from it, passes through the TEG, and then is pumped back around to be heated up again. This is known as the "hot loop". And the aformentioned hot chamber can be made by, well, starting a fire in it - this is called "the burn chamber".

===''The Burn Chamber'' ===

The burn mix, as it is known, can be made either by mixing gasses from two canisters, or by mixing gas from a plasma can and gas from the oxygen miner. At round start, most TEG loops are unfortunately set up with the far more annoying former.

Usually a mix of 3% plasma and 97% oxygen is used. Plasma and oxygen burn at a ratio of roughly 1:1.4, but the high amount of oxygen meets the 'supersaturation' condition to make tritium, which reacts with oxygen again and is the source of majority of the energy in a burn.

Keep in mind that the pressure will rise with temperature, and depending on how much fuel was added initially, you may find the pressure to be above the 9MPa maximum limit for air injectors, even once the gas has cooled below what is useful for the TEG. Therefore, if you want to add more fuel, the pressure will have to be lowered. The simplest way to do this is using the venting blast doors found on every TEG burn chamber. Alternatively you could build scrubbers or pumps to remove the gas which will reduce the heat lost to space.

Igniting the burn chamber can be done in several ways. Ideally you use an igniter, placed in the burn chamber and linked to a button. However, not all TEG burn chambers come with one, and furthermore the igniter is actually a pretty poor ignition tool.

=== ''The Hot Loop'' ===

The second, crucial part of our set up is the hot gas we will pump through the TEG. This can be in a way understood as a way to transfer heat from out burn chamber to the TEG. Thus, similarly to the cold gas, you want to use a gas with high heat capacity. Practically this usually also means plasma.

We want our hot loop gas to become as hot as possible. This is for a couple reasons, mentioned before - only 10% of a gas' heat is used each time it passes through, and the output of the TEG scales based on the temperature difference between the cold loop and the hot loop.

In a typical hot loop set up there will be 3 critical pumps and 1 critical valve.
* The burn chamber input pump.
* The burn chamber output/TEG input.
* The TEG output.
* The pressure release valve.

Recall, that it is vital there is a continuous flow of gas through the TEG. If the flow stops, the TEG immediately ceases producing power.

You may recall a crucial formula from [[Atmospheric Science]]: pV = nRT. Practically this means the hotter the same volume of gas becomes, the higher its pressure. Because all pumps (including volumetric ones!) have pressure limits, at which they will stop pumping, this means should your pressure get too high, your TEG will "stall".

The pressure release valve is your "emergency button" to reduce pressure should a stall occur. However it is better to avoid a stall in the first place.

A few things can help you in achieving that:
* Use as little gas as possible for your hot loop
* Use volumetric pumps as they have a higher pressure limit. Keep in mind that mixers act as pressure pumps, while filters act as volumetric pumps!
''* Other (add here)''

== A simple step-by-step guide to set up and maintain a station's TEG==

Ok that's a lot of text right? A lot to take in? Yeah. So here is a simple step-by-step to practically set up your TEG at round start, so the station has power.

=The Mix Chamber=

==About this guide==
So you are ready to graduate from Station Engineer to Atmospherics Technician and are looking for something a little more in-depth than laying down wires and clicking on boxes to set up the AME? Well look no further, after reading this you will be smarter than those [[Station Engineer|dummies next door]] and have the skills to show for it!

This guide is designed to walk you through, step by step, in creating your first burn mix using the mix chamber. After completion you should have a better understanding on how the mix chamber functions. If everything is done right you will make your engineer coworkers jealous and will be one step closer to mastering atmospherics! If things go wrong, angry crewmembers will be yelling death threats and the admins will very interested in you! Just remember to always learn from any mistakes and understand where and why something went horribly wrong!

Make sure you have a basic understanding on how atmospherics works.

==First things first==
So you just started your shift as an Atmospherics Technician on space station 14 and want to use the mix chamber. The very first things you should do is grab your equipment. Make sure you have either your firesuit and helmet or atmospheric hard suit and internals available to provide you some protection in case of an accident. Next, be sure to grab your handy dandy gas analyzer to be able to see what's going on inside those pipes. Lastly and arguably the most important thing you should do at round start is to consult with your fellow atmospheric technicians and [[Chief Engineer]]. Declare your intention to use the mix chamber and make sure everyone is on the same page. The last thing you want to have happen is your coworker unwittingly dumping your burn mix into the room by un-wrenching a pipe or finding out that they accidently pumped your burning hot plasma mix into distro.

==Locating the mix chamber==

[[File:Mix chamber 2.png|thumb|An example of a mix chamber]]

Look around atmosia and locate the gas mixers by the different gas holding tanks. Follow the gas mixers outlet pipes until they all combine and terminate into a pump or manual valve that leads out of the station's hull. Look through the window and observe if the pumps lead into a nearby empty chamber containing both inlet and outlet passive vents and a blast door. If you found this, congratulations! you have located your mix chamber!

Some stations, usually the small ones, are not equipped with a mix chamber. If the pipes lead to a vent in open space and you do not see a nearby empty chamber then there is mostly likely no mix chamber on this station. Feel free to contact the head of your department and Centcom to complain about station budget cuts!

==Setting up the pipes==

[[File:Atmosia mix chamber guide.png|thumb|A handy guide with arrows and numbers]]

Every station has a different layout so it is a good practice to always refamiliarize yourself at round start with the mix chamber and the mix loop. After you located the mix chamber follow the pipes that flow into and out of it and get comfortable with where they lead. A general mix loop will take gas from the holding tanks, through gas mixers and into the mix chamber. From there they will exit the chamber and loop into an area where you can connect ports and canisters to extract your gas. Some layouts do not have a canister loop and you might have to create your own if needed. Finally the mix loop will connect into waste where the unused gas will be returned to the gas holding chambers to be recycled and reused at a later time. Once you are 100% sure where the mix loop is you are ready to add gas to the chamber.

#Triple check that the pipes leading out of the mix chamber '''do not''' flow into distro. if they do, either physically disconnect them or manually toggle off the pumps.
#Toggle off all the gas pumps, except oxygen and nitrogen, leading out of the gas holding chambers.
#toggle off all the gas mixers with the exception the oxygen and nitrogen mixers used for distro.
#Toggle off all the pumps leading out of the mix chamber up to the waste loop.
#Toggle closed the mix chamber blast doors using the button.
#Use your gas analyzer on the pipes leading into and out of the mix loop and check to see that there is no gas in the pipes. If there is, locate where the gas is coming from and toggle that pump closed. Drain the mix loop by locating the mix to waste pump at the end of the mix loop and toggle it open until the gas is gone. Repeat until all gas is gone.
#Locate the pumps leading out of the oxygen and plasma holding chambers and set them to max pressure.
#Locate where the oxygen flows into the next gas mixer down the line and max the pressure. Be sure to configure the input ratios depending on what side of the mixer the oxygen is flowing into. '''Do not touch the gas mixers used with oxygen and nitrogen in the distro loop.'''
#Work your way down the gas mixer line maxing the pressure and configuring the input ratios until you reach the mixer for the plasma holding tank. Set the input for oxygen to be at 66% and the input for plasma to be 33% and set the pressure to be around 100-200kPa.
#Continue down the line up to the chamber opening up and maxing the pressure of all pumps until you see gas flow into the mix chamber.

If everything is done correctly you should see plasma gas in the mix tank. The exact composition of the gas inside should be 66% oxygen and 33% plasma. If you see this then congratulations! you have created your very own burn mix!

''(note that you may need to adjust the output pressure of the oxygen and plasma mixer. Too much pressure will clog up the mix chamber and waste pipes with water vapor waste gas as the plasma burns. Too little of a pressure and the plasma fire will burn itself out. Experiment with different pressures to find one you like!)''

If you don't see any gas inside the mix chamber chances are that you forgot to toggle open a pump or max the pressure. double check that the blast doors are closed and that all the outlet pumps on the mix chamber are toggled off. Follow the mix loop back from the mix chamber and use your gas analyzer on each pipe segment until you find where the pressure is at. double check that the right pumps are open and that the pressure is maxed. If there is still no gas flowing double check the mixers and check to see the correct inlet ports are set to the right percentage on the mixer interface. If there ''still'' isn't gas in the chamber and you double checked every pipe pump and valve then check that there is gas in the holding tanks. Some stations do not have a plasma miner or there might be a breach venting all your gas into space.

==Igniting the burn mix==
So, your mix chamber is full of sparkling plasma and oxygen, what's next? Firstly, understand that plasma will ignite at higher temperatures. A plasma fire requires both a steady flow of oxygen and plasma to remain ablaze and will create waste gas in the process. There are many ways to ignite your burn mix but the most common and safest way is to wrench a heater on one of the burn mix outlet pipes. A quicker, dumber, more flashier way is to chuck a lit welder or fire source into the chamber before pressurizing it.

[[File:Heater burn mix location.png|thumb|A suitable location for a heater to combust the burn mix]]

Lets go with the heater method. Simply find a heater nearby in atmospherics or steal one from your silly engineer coworkers. Alternatively you can craft one using a machine frame and some components. Once you have acquired your heater, drag that bad boy over to the mix chamber's outlet pipe. Make sure the location you have chosen has pressurized gas from the chamber, use your gas analyzer to check! You may need to add or remove some pipes and a pump to get a suitable location. Once you have the right location, use your wrench to secure it to the pipe. Open the interface, max out the temperature and turn it on. Depending on the amount of burn mix and its temperature you may need to wait a couple of seconds before it combusts into a beautiful plasma fire. Heaters(and freezers) will sometimes act strangely on horizontal and elbow pipes and not heat up the gas inside.. You may need to move it around until you find a place that works for you.

''With the addition of holofans, it may be easier to use a holofan to hold back the gas and allow you entry to chuck a lit welder into the burn chamber.''

Once your burn mix is lit you may notice it going out sporadically. This is because we still have the mix to waste pipes toggled off and the plasma fire is creating water vapor as a waste gas witch is taking up valuable space, displacing oxygen and plasma and snuffing out our fire. Simply open up your mix loop to waste and watch as the gas gets syphoned out through the loop back into the gas holding chambers. You may need to manually vent the mix chamber using the blast door toggle button to speed up the venting process. Once you have the mix loop connected to the waste loop, plasma and oxygen will continuously flow from the gas holding chambers into the mix chamber, combust into flame, and work its way out through the loop back into the holding chambers ready to start its journey once again.

Congratulations! you now have a fully self sufficient burn mix! The fire will continue to burn until you either run out of oxygen or plasma, or until the waste loop cant keep up with the pressure. Feel free to sit back and relax for a time while watching your burn mix combust into flame.

==What now?==
Now that we have a stable plasma fire, now what? Well, that's up for you to decide! Experiment with different plasma and oxygen ratios and see how it influences the temperature and pressure. Perhaps try to introduce a third gas into the chamber and see what happens. Extract your burning hot gas into a canister and drag it along behind you to show it off to the crew while grabbing a well deserved snack and drink at the bar. The possibilities are yours to decide! have fun and remember to enjoy the remainder of your shift aboard Space Station 14.

{{Guides Menu}}

Practical Atmospherics

2025-06-26T15:57:17Z

HTMLSystem: Rewrote the entire breakdown of Distro and gas recycling.

{{Rewrite|todo=Big rewrite needed - Please move information about the TEG, trit production, and frezon productions to their own separate pages}}

= Atmospherics (Departmental layout) =
Atmospherics (commonly referred to as "atmos" or "atmosia") is a subset of the engineering department that is responsible for providing breathable area to all of the station and getting rid of toxins from the area. There are many areas of atmos that have specific names and serve a specific purpose.

== The Distribution System ==

The Distribution System (usually shortened to "distro") is a part of atmos that is responsible for distributing breathable area around the station and getting rid of toxic gases from the environment. The Distribution System is split up into two part, "distro" and "waste." Distro is what fills the station with breathable area via vents. This network of pipes is usually blue. Waste is what toxic gases are siphoned into via scrubbers. This network of pipes is usually red.
Usually, a station can go about 40 minutes to an hour without any of this being turned on, but that's only if there isn't anything horrible that goes wrong like a gas leak or an area getting spaced. So it should still be one of your topped priorities to get it on and working.

=== Gas Chamber ===
''Note: Replace image to show the unique DeltaV gas textures''
[[File:Atmos holding chambers.png|thumb|Gas holding chambers]]
Every distro setup will have gas chambers for gases that you can mine and collect during the shift. At the least, there will be 2 chambers, one for oxygen and one for nitrogen. These two chambers will always have gas miners (with the Exception of Shoko, which has no oxygen miner) that give you infinite oxygen and infinite nitrogen. Most stations will have another chamber that is filled with plasma that doesn't have a miner and a few more extra chambers to collect other gases that might show up during the shift from gas leaks or dead bodies.

=== Distro Loop ===
Each distro system may vary from station to station on how complete they will be. Some will be very simple and easy to understand. Some will be overly complicated and be very confusing to look at. Some will be completely empty and the mappers have left you 3 stacks of steel to build it all from scratch.
[[File:Elegance_atmos.png|200px]] [[File:Lighthouse_atmos.png|200px]] [[File:Tortuga_atmos.png|200px]]
Whatever the situation is, take your time to make sure you're setting it up correctly. All distro set ups should have a gas mixer that is 22%-25% oxygen and 78%-75% nitrogen. This is different from upstream because of [[Playable Species|Harpies]], who need oxygen to be at least 22% so they don't suffocate. It varies depending on what you prefer your setup to be. the percentage of oxygen should not go above 30%, as that makes air alarms start to go off.
Distro should also be about 20C (293.15K) as this is a safe temperature for all species. There will usually be a heater and freezer connected to distro and set to 293.15K to achieve this temperature, but this isn't always needed.
To optimize distro, you should set the distro pump to 200 kPa. This allows more gas to fill the pipe network across the station and allow it to fix any spacing that happens. it is ill-advised to set the pump any higher than 200 as someone could easily sabotage distro by placing an air injector in a closed room or a passive vent into space, emptying the entire distro network and not allowing it to refill any space rooms.

=== Waste Loop ===
The waste line is something that you usually have to build yourself. This can be achieved by placing gas filters in front of every gas chamber and setting each gas filter to filter out a specific gas. There should be pipes under the walls to gas chambers that will automatically connect to the gas filters you place. Use a t-ray scanner to see the pipes.
It is ill-advised to filter oxygen or nitrogen into their respective gas chambers unless you have a heater and freezer on your distro/waste line. Fires happen around the station. When fires/frezon leaks happen, the superheated/supercooled gas gets siphoned into waste. If there's nothing to regulate the temperature of these gases, superheated/supercooled gas will then be sent into the distro network, burning/freezing the entire station.

== Gas Recycler ==
A handful of stations may come with a gas recycler, if they do not then you can make one when Epistemics researches it.
One particular station, called Shoko Station, *relies* on a recycler, as it has no oxygen gas miner.
A gas recycler can turn carbon dioxide and nitrous oxide into oxygen and nitrogen, respectively. It requires 3000 kPa and the gas flow inside of it to be 300C to function. Pressure can be caused by other gases being added to the recycler loop.
The gases that leave the recycler will still be heated, so it's important to cool them in some way. Either through the use of freezers or cooling via space.

==Mix Chamber==

[[File:Mix chamber in use.png|thumb|A mix chamber in use]]

The mix chamber is an empty holding area with its own separate loop of pipes and pumps in atmospherics. The mix loop is generally marked with brown pipes and the holding chamber can usually be found close to the external hull, separated from the station by reinforced walls and windows. There will be an emergency button nearby to vent the chamber to space if you need to dump your mix in case an accident arises, or you just wish to reset the chamber for a new mix. The mix chamber is here for you to experiment with different mixes, ratios, temperatures, and pressures while combining gases.

On most stations the Mix chamber will loop around to either to the distro loop, or back to the waste loop. It is generally a good practice to have your mix loop flow back into the waste loop to recycle any unspent gases. You should '''NEVER''' have the mix loop flow into distro unless you have a [[Traitor|very good reason.]] Most savvy Atmospherics Technicians physically disconnect the mix loop from distro at round start to prevent an easy sabotage target or accident from occurring later in the round.

See the guide to [[Gases]] if you are interested to learn how different gases interact with each other at different temperatures and pressures.

See the guide to [[Setting up the mix chamber]] if you want to learn how to properly and safely use the mix chamber.

= Setting up and understanding the Thermoelectric Generator (TEG) =

{{Stub}}

''This section is currently an incomplete placeholder guide. I do not know this stuff sufficiently to write the guide. For better info, check #atmos thread on Discord.''

''Note: Please make a separate page for the TEG''

The TEG has two pipe inputs for gasses - an input for a hot gas, and an input for a cold gas.

The TEG works by transferring heat energy from the hot input gas to the cold input gas, generating power as part of the transfer. Currently (June 2025) the amount of heat transfered from a gas when it passes through the TEG is 10% - meaning 90% of heat energy in the gas remains. How much heat energy a gas can "contain" is determined by its [[Atmospheric Science#Gasses|specific heat capacity]].

Furthermore the efficiency of the TEG scales with the difference in temperature between the hot gas and the cold gas.

Thus, ultimately for the TEG to work we need:
* A cold gas - the "cold loop"
* A hot gas - the "hot loop"
* Continious flow of both gasses.

== The cold loop - space radiators and cooling the TEG ==

To maintain the TEG's output, the cold loop will need some way to stay cold. Space is cold... sort of. There isn't really anything to give the heat to. Instead, radiators placed outside in space have to release the heat as infrared radiation, which is significantly less effective than exchanging heat with an atmosphere. You will need more radiators.

The best way to use radiators for the cold loop is in parallel, with each radiator having a volume pump going into it and a gas pump going out. These pumps will split up the incoming gas equally and force circulation through the radiator. The speed for the input pumps should each be set as a fraction of the 200L/s maximum speed of the volume pump, divided by the amount of radiators, for example if you had 4 radiators in parallel, the input pumps would need to be set to 50L/s each.

Placing the same radiators in series will mean the output is technically colder, but the heat loss diminishes as the gas cools and passes through more radiators, resulting in a reduction of flow from the smaller pressure difference between the sides of each successive radiator. Flow is just as important as temperature for the cold loop.

Also, radiators in space work better on lattice, as more of the radiator is exposed. Remember that underfloor tiles can be removed using a fireaxe or RCD.

When filling the cold loop, you will want a gas with high heat capacity, such as plasma or possibly frezon, to maximise the amount of energy that can transfer between the loops. The lower temperatures mean your usual cold loop can easily take an entire canister of plasma without causing issues.

== The hot loop - setting up and using the burn chamber ==

There are two ways to get a hot gas for our TEG - we can either heat it up by exposing it to a very hot area (the burn chamber), or by pumping in the hot gasses from a fire. However, because usual fire product gasses (carbon dioxide and water vapor) usually have very poor specific heat capacity, and can be difficult to supply consistantly, almost always the former set up is used. Furthermore, discarding the gas after using it to power the TEG is very very wasteful - recall that only 10% of the gas' heat is used every time a gas passes the TEG!

Therefore instead we set up a system, where a gas is passed through a very hot room through radiators, taking up heat from it, passes through the TEG, and then is pumped back around to be heated up again. This is known as the "hot loop". And the aformentioned hot chamber can be made by, well, starting a fire in it - this is called "the burn chamber".

===''The Burn Chamber'' ===

The burn mix, as it is known, can be made either by mixing gasses from two canisters, or by mixing gas from a plasma can and gas from the oxygen miner. At round start, most TEG loops are unfortunately set up with the far more annoying former.

Usually a mix of 3% plasma and 97% oxygen is used. Plasma and oxygen burn at a ratio of roughly 1:1.4, but the high amount of oxygen meets the 'supersaturation' condition to make tritium, which reacts with oxygen again and is the source of majority of the energy in a burn.

Keep in mind that the pressure will rise with temperature, and depending on how much fuel was added initially, you may find the pressure to be above the 9MPa maximum limit for air injectors, even once the gas has cooled below what is useful for the TEG. Therefore, if you want to add more fuel, the pressure will have to be lowered. The simplest way to do this is using the venting blast doors found on every TEG burn chamber. Alternatively you could build scrubbers or pumps to remove the gas which will reduce the heat lost to space.

Igniting the burn chamber can be done in several ways. Ideally you use an igniter, placed in the burn chamber and linked to a button. However, not all TEG burn chambers come with one, and furthermore the igniter is actually a pretty poor ignition tool.

=== ''The Hot Loop'' ===

The second, crucial part of our set up is the hot gas we will pump through the TEG. This can be in a way understood as a way to transfer heat from out burn chamber to the TEG. Thus, similarly to the cold gas, you want to use a gas with high heat capacity. Practically this usually also means plasma.

We want our hot loop gas to become as hot as possible. This is for a couple reasons, mentioned before - only 10% of a gas' heat is used each time it passes through, and the output of the TEG scales based on the temperature difference between the cold loop and the hot loop.

In a typical hot loop set up there will be 3 critical pumps and 1 critical valve.
* The burn chamber input pump.
* The burn chamber output/TEG input.
* The TEG output.
* The pressure release valve.

Recall, that it is vital there is a continuous flow of gas through the TEG. If the flow stops, the TEG immediately ceases producing power.

You may recall a crucial formula from [[Atmospheric Science]]: pV = nRT. Practically this means the hotter the same volume of gas becomes, the higher its pressure. Because all pumps (including volumetric ones!) have pressure limits, at which they will stop pumping, this means should your pressure get too high, your TEG will "stall".

The pressure release valve is your "emergency button" to reduce pressure should a stall occur. However it is better to avoid a stall in the first place.

A few things can help you in achieving that:
* Use as little gas as possible for your hot loop
* Use volumetric pumps as they have a higher pressure limit. Keep in mind that mixers act as pressure pumps, while filters act as volumetric pumps!
''* Other (add here)''

== A simple step-by-step guide to set up and maintain a station's TEG==

Ok that's a lot of text right? A lot to take in? Yeah. So here is a simple step-by-step to practically set up your TEG at round start, so the station has power.

=The Mix Chamber=

==About this guide==
So you are ready to graduate from Station Engineer to Atmospherics Technician and are looking for something a little more in-depth than laying down wires and clicking on boxes to set up the AME? Well look no further, after reading this you will be smarter than those [[Station Engineer|dummies next door]] and have the skills to show for it!

This guide is designed to walk you through, step by step, in creating your first burn mix using the mix chamber. After completion you should have a better understanding on how the mix chamber functions. If everything is done right you will make your engineer coworkers jealous and will be one step closer to mastering atmospherics! If things go wrong, angry crewmembers will be yelling death threats and the admins will very interested in you! Just remember to always learn from any mistakes and understand where and why something went horribly wrong!

Make sure you have a basic understanding on how atmospherics works.

==First things first==
So you just started your shift as an Atmospherics Technician on space station 14 and want to use the mix chamber. The very first things you should do is grab your equipment. Make sure you have either your firesuit and helmet or atmospheric hard suit and internals available to provide you some protection in case of an accident. Next, be sure to grab your handy dandy gas analyzer to be able to see what's going on inside those pipes. Lastly and arguably the most important thing you should do at round start is to consult with your fellow atmospheric technicians and [[Chief Engineer]]. Declare your intention to use the mix chamber and make sure everyone is on the same page. The last thing you want to have happen is your coworker unwittingly dumping your burn mix into the room by un-wrenching a pipe or finding out that they accidently pumped your burning hot plasma mix into distro.

==Locating the mix chamber==

[[File:Mix chamber 2.png|thumb|An example of a mix chamber]]

Look around atmosia and locate the gas mixers by the different gas holding tanks. Follow the gas mixers outlet pipes until they all combine and terminate into a pump or manual valve that leads out of the station's hull. Look through the window and observe if the pumps lead into a nearby empty chamber containing both inlet and outlet passive vents and a blast door. If you found this, congratulations! you have located your mix chamber!

Some stations, usually the small ones, are not equipped with a mix chamber. If the pipes lead to a vent in open space and you do not see a nearby empty chamber then there is mostly likely no mix chamber on this station. Feel free to contact the head of your department and Centcom to complain about station budget cuts!

==Setting up the pipes==

[[File:Atmosia mix chamber guide.png|thumb|A handy guide with arrows and numbers]]

Every station has a different layout so it is a good practice to always refamiliarize yourself at round start with the mix chamber and the mix loop. After you located the mix chamber follow the pipes that flow into and out of it and get comfortable with where they lead. A general mix loop will take gas from the holding tanks, through gas mixers and into the mix chamber. From there they will exit the chamber and loop into an area where you can connect ports and canisters to extract your gas. Some layouts do not have a canister loop and you might have to create your own if needed. Finally the mix loop will connect into waste where the unused gas will be returned to the gas holding chambers to be recycled and reused at a later time. Once you are 100% sure where the mix loop is you are ready to add gas to the chamber.

#Triple check that the pipes leading out of the mix chamber '''do not''' flow into distro. if they do, either physically disconnect them or manually toggle off the pumps.
#Toggle off all the gas pumps, except oxygen and nitrogen, leading out of the gas holding chambers.
#toggle off all the gas mixers with the exception the oxygen and nitrogen mixers used for distro.
#Toggle off all the pumps leading out of the mix chamber up to the waste loop.
#Toggle closed the mix chamber blast doors using the button.
#Use your gas analyzer on the pipes leading into and out of the mix loop and check to see that there is no gas in the pipes. If there is, locate where the gas is coming from and toggle that pump closed. Drain the mix loop by locating the mix to waste pump at the end of the mix loop and toggle it open until the gas is gone. Repeat until all gas is gone.
#Locate the pumps leading out of the oxygen and plasma holding chambers and set them to max pressure.
#Locate where the oxygen flows into the next gas mixer down the line and max the pressure. Be sure to configure the input ratios depending on what side of the mixer the oxygen is flowing into. '''Do not touch the gas mixers used with oxygen and nitrogen in the distro loop.'''
#Work your way down the gas mixer line maxing the pressure and configuring the input ratios until you reach the mixer for the plasma holding tank. Set the input for oxygen to be at 66% and the input for plasma to be 33% and set the pressure to be around 100-200kPa.
#Continue down the line up to the chamber opening up and maxing the pressure of all pumps until you see gas flow into the mix chamber.

If everything is done correctly you should see plasma gas in the mix tank. The exact composition of the gas inside should be 66% oxygen and 33% plasma. If you see this then congratulations! you have created your very own burn mix!

''(note that you may need to adjust the output pressure of the oxygen and plasma mixer. Too much pressure will clog up the mix chamber and waste pipes with water vapor waste gas as the plasma burns. Too little of a pressure and the plasma fire will burn itself out. Experiment with different pressures to find one you like!)''

If you don't see any gas inside the mix chamber chances are that you forgot to toggle open a pump or max the pressure. double check that the blast doors are closed and that all the outlet pumps on the mix chamber are toggled off. Follow the mix loop back from the mix chamber and use your gas analyzer on each pipe segment until you find where the pressure is at. double check that the right pumps are open and that the pressure is maxed. If there is still no gas flowing double check the mixers and check to see the correct inlet ports are set to the right percentage on the mixer interface. If there ''still'' isn't gas in the chamber and you double checked every pipe pump and valve then check that there is gas in the holding tanks. Some stations do not have a plasma miner or there might be a breach venting all your gas into space.

==Igniting the burn mix==
So, your mix chamber is full of sparkling plasma and oxygen, what's next? Firstly, understand that plasma will ignite at higher temperatures. A plasma fire requires both a steady flow of oxygen and plasma to remain ablaze and will create waste gas in the process. There are many ways to ignite your burn mix but the most common and safest way is to wrench a heater on one of the burn mix outlet pipes. A quicker, dumber, more flashier way is to chuck a lit welder or fire source into the chamber before pressurizing it.

[[File:Heater burn mix location.png|thumb|A suitable location for a heater to combust the burn mix]]

Lets go with the heater method. Simply find a heater nearby in atmospherics or steal one from your silly engineer coworkers. Alternatively you can craft one using a machine frame and some components. Once you have acquired your heater, drag that bad boy over to the mix chamber's outlet pipe. Make sure the location you have chosen has pressurized gas from the chamber, use your gas analyzer to check! You may need to add or remove some pipes and a pump to get a suitable location. Once you have the right location, use your wrench to secure it to the pipe. Open the interface, max out the temperature and turn it on. Depending on the amount of burn mix and its temperature you may need to wait a couple of seconds before it combusts into a beautiful plasma fire. Heaters(and freezers) will sometimes act strangely on horizontal and elbow pipes and not heat up the gas inside.. You may need to move it around until you find a place that works for you.

''With the addition of holofans, it may be easier to use a holofan to hold back the gas and allow you entry to chuck a lit welder into the burn chamber.''

Once your burn mix is lit you may notice it going out sporadically. This is because we still have the mix to waste pipes toggled off and the plasma fire is creating water vapor as a waste gas witch is taking up valuable space, displacing oxygen and plasma and snuffing out our fire. Simply open up your mix loop to waste and watch as the gas gets syphoned out through the loop back into the gas holding chambers. You may need to manually vent the mix chamber using the blast door toggle button to speed up the venting process. Once you have the mix loop connected to the waste loop, plasma and oxygen will continuously flow from the gas holding chambers into the mix chamber, combust into flame, and work its way out through the loop back into the holding chambers ready to start its journey once again.

Congratulations! you now have a fully self sufficient burn mix! The fire will continue to burn until you either run out of oxygen or plasma, or until the waste loop cant keep up with the pressure. Feel free to sit back and relax for a time while watching your burn mix combust into flame.

==What now?==
Now that we have a stable plasma fire, now what? Well, that's up for you to decide! Experiment with different plasma and oxygen ratios and see how it influences the temperature and pressure. Perhaps try to introduce a third gas into the chamber and see what happens. Extract your burning hot gas into a canister and drag it along behind you to show it off to the crew while grabbing a well deserved snack and drink at the bar. The possibilities are yours to decide! have fun and remember to enjoy the remainder of your shift aboard Space Station 14.

{{Guides Menu}}

File:Tortuga atmos.png

2025-06-26T15:50:54Z

HTMLSystem: The round start atmospherics on Tortuga.

== Summary ==
The round start atmospherics on Tortuga.

File:Lighthouse atmos.png

2025-06-26T15:49:11Z

HTMLSystem: The round start atmospherics on Lighthouse.

== Summary ==
The round start atmospherics on Lighthouse.

File:Elegance atmos.png

2025-06-26T15:46:18Z

HTMLSystem: Round start atmospherics on Elegance.

== Summary ==
Round start atmospherics on Elegance.

Basics of Atmos

2025-06-26T03:44:21Z

HTMLSystem: Added the abbreviations of gases to the table

{{Rewrite|todo=Details, details, details. Someone from #atmos-thread, please!}}

= The Basics of Atmos =
Atmos seems complicated on it's surface, but it's easier to understand once you learn the terms and how gases work.

== Pressure ==

Pressure is measured in kPa (Kilopascals). A safe amount of kPa is 80-140 kPa. If kPa falls under or over that amount, most creatures will start to take barotrauma damage. Most atmos devices are set to 101.3 kPa.
Pressure rises as temperature rises, and lowers as temperature lowers.
Gases will always try to flow from higher pressure to lower pressure to create an equilibrium. It's important to be mindful of the pressure in a room or pipe before you open a door or unanchor a pipe.
Most atmospheric devices clog around 4500 kPa, some only clog at 9000 kPa, and some don't clog at all.

== Temperature ==

Temperature is measured in Celsius and Kelvin. A safe amount of temperature varies from species to species, the temperature a room should be is around 20°C (293.15K) as that's safe for all species.
Heat and cold will always try to spread to create an equilibrium. Be mindful before you open a door or unanchor a pipe. Remember that space is naturally cold, so any spaced rooms will be very cold after you patch them up.

== Mols ==

The exact volume of gases is measured in mols. It is important to pay attention to the exact mols of gases, such as dealing with the TEG or toxic gases that have the potential to poison people.

==Toxins==
''Main article: [[Gases]]''

There are many toxic gases some species (like Harpies) are hypersensitive to toxins, some species (like Voxes) are poisoned by Oxygen. It's important to not leave them unattended as not many people know what that bright green gas is on the other side of the door, and will walk in there without knowing that they will be dead in 10 secs. it's important that you use your equipment given to you to keep people out of the affected area and siphon the gases out as safely and fast as possible.

= Pipes, Vents and Other Atmospheric Devices =

== General Information ==
All gases can flow through the various pipes found in the game. Gas will always attempt to flow from higher pressure to lower pressure. If a gas is not in a pipe, canister, or tank, it will be in the atmosphere and will interact with other objects.

Gas will always try to even out the pressure. For example, if a empty canister is connected to a pipe pressurized at 4500kpa, the canister will also only be pressurized to 4500kpa. If a canister pressurized at 9000kpa is connected to the same pipe, gas will flow out of the canister until a even pressure is acquired.

If pressurized pipes get unwrenched they will dump all of their contents into the surrounding atmosphere and will, depending on the pressure level, violently blow the wrench user away. You will know if you are unwrenching a pressurized pipe if you get the message stating "A gush of air blows in your face... Maybe you should reconsider?" It is good practice to always use your gas analyzer on every pipe before unwrenching to ensure it is depressurized.

All pipes can be unwrenched to disconnect them from others. By using a welder on a unwrenched pipe segment you can deconstruct it into steel.

A broken or unconnected segment of pipe WILL NOT allow gas to pass through. Do not worry about all your gas escaping out of a broken or unconnected pipe segment.

Most pumps, mixers, and filters do not require power to function. Only air vents and scrubbers require power. You can shift-click on a segment to examine it to see if it is powered.

== Pipes ==
Allows gas to flow freely. Comes in four shapes. Straight, Elbow, 3-way-juntion, 4-way-junction.
{| class="wikitable"
!Image
!Name
!Description
|-
|[[File:Pipe_straight.png]]
|gas pipe straight
|A straight segment of pipe.
|-
|[[File:Pipe_elbow.png]]
|gas pipe bend
|A elbow segment of pipe.
|-
|[[File:Pipe_3_way.png]]
|gas pipe T junction
|A three way junction segment of pipe.
|-
|[[File:Pipe_4_way.png]]
|gas pipe fourway
|A four way junction segment of pipe.
|}

== Atmospheric Devices ==
{| class="wikitable"
!Image
!Name
!Description
|-
|[[File:Gas_pump.png]]
|Gas Pump
|Pumps gas in a specific direction. Has a maximum throughput of 4500 kPa (4.5 Mpa), clogs at 4500 kPa. Loses efficiency as the volume of gas rises. Can be turned on/off to allow/disallow gas flow. Requires power.
|-
|[[File:Volumetric_gas_pump.png]]
|Volumetric Gas Pump
|Pumps gas based on the mole amount instead of pressure. Has a maximum throughput of 200 L/s, clogs at 9000 kPa (9 Mpa). best used when dealing with extremely high pressure. Requires power.
|-
|[[File:Manual_valve_closed.png]]
|Manual Valve
|Allows gas to flow to and from whatever pipes it's connected to. Can be opened (green light) or closed (red light). Doesn't require power.
|-
|[[File:Passive_gate.png]]
|Passive Gate
|An air valve that's one-way only. The red circle is the inlet part. Does not require power.
|-
|[[File:Gas_Mixer.png]]
|Gas Mixer
|Allows you to combine the gas flow of two pipes into one. Has a maximum throughput of 4500 kPa, clogs at 4500 kPa. Allows you to set the percentage of throughput of both inputs. The primary port is parallel with the output while the side port is perpendicular. If one input is missing, it will not allow gas flow.
|-
|[[File:Gas_Filter.png]]
|Gas Filter
|Filters out a selected gas into another pipeline. Has a maximum throughput of 1000 L/s, clogs at 4500 kPa. Filtered gas will exit out of the perpendicular outlet while all other gases continue to flow down the parallel outlet. The filter outlet will not allow gas flow if no gas is selected or if no pipe is connected to the filter outlet.
|-
|[[File:Air_Sensor.png]]
|Air Sensor
|Scans the atmosphere of the tile it's on, shows the information on an air alarm.
|-
|[[File:Air_alarm.png]]
|Air Alarm
|Shows information of the atmosphere in the surrounding area. Allows you to control all the air vents and scrubbers it's connected to. Requires power.
|-
|[[File:Air_vent.png]]
|Gas Vent
|Used to move gas into the surrounding atmosphere. Can store 4500 kpa but only allows 101.3 kPa to flow out of it. If external pressure is higher than the limit, no gas will flow out of the vent. If external pressure drops too much, the vent will go into under-pressure lockout (shown by the vent having yellow lights instead of blue lights) and no gas will flow out of it. You can right-click on a vent and unlock it from under-pressure lockout after you fix the area. Requires power
|-
|[[File:Duel-port_vent.png]]
|Dual-port Gas Vent
|Exactly the same as a normal gas vent, but has two input options instead of one. Requires power.
|-
|[[File:Passive_vent.png]]
|Passive Vent
|Allows any pressure and gas to flow in and out of it. Doesn't require power.
|-
|[[File:Air_Scrubber.png]]
|Air Scrubber
|Slowly siphons selected gases out of the surrounding atmosphere. You can change what gases it siphons via an air alarm. Must be connected to an outlet port to function. Glows blue when working and glows red when in panic mode. Requires power.
|-
|[[File:Air_injector.png]]
|Air Injector
|inject air into the surrounding atmosphere. Does not allow backflow. Maximum throughput is 9000 kPa, clogs at 9000 kPa. Requires power.
|-
|[[File:Pneumatic_valve.png]]
|Pneumatic Valve
|Has three ports: Control, inlet, an outlit. Allows gas flow like a manual valve, but only if the pressure at the control port is high enough. To turn it on, the control port must be at least 1 atm higher than the lowest pressure connected to the valve. I.E the lesser of the inlet and outlit pressure.
|-
|[[File:Canister.png]]
|Canister
|Used to hold and transport gas without the use of pipes. Use a wrench to connect a canister to a connector port. You can put air tanks into canister to fill them with whatever gas is in the canister.
|-
|[[File:Connector_Port.png]]
|Connector Port
|Used to transfer gas from pipes into canisters. Gas will flow into the canister until pressure evens out between the connector port and the canister. Use gas pumps to force more gas in/out of canisters.
|-
|[[File:Gas_miner.png]]
|Gas Miner
|Creates new gases from nothing, used to make sure stations have an infinite amount of a specific gas. Stations usually only come with an oxygen and nitrogen miner. Found in gas chambers in atmos.
|-
|[[File:Gas_recycler.png]]
|Gas Recycler
|Used to recycle carbon dioxide and nitrious oxide into oxygen and nitrogen, respectively. Requires power, 3000 kPa and the gas to be 300°C to work.
|-
|[[File:Condenser.png]]
|Gas Condenser
|Condenses an gas into liquid.
|-
|[[file:Radiators.png]]
|Radiator
|Used to transfer the temperature of a room to the gas in pipes.
|-
|[[File:Freezer.png]][[File:HeaterOff.png]]
|Freezer/heater
|Connected to pipe networks to heat up the gas inside. Has hellfire variants.
|-
|[[File:Portable_Scrubber.png]]
|Portable Scrubber
|Works just like an air scrubber, but you can pull it around! Anchor it down to have it filter harmful gases out of the air.
|-
|[[file:Space_Heater.png]]
|Space Heater
|A portable heater used to regulate temperatures in certain rooms. Anchor it down and click the interact button to make it work.
|}

=== Design Examples ===
'''Pressure Relief Valve'''

[[File:Pressure_relief_system.png]]

This pressure relief system drains the air inside to space if the pressure exceeds 1 atm, which can be used to guard against accidental station overpressure events. A passive vent inside (1) is connected to the control and the inlet. Another passive vent in space (2) is connected to the outlet. Since the outlet pressure is 0 kPa, then the pneumatic valve will only be on if the inside pressure exceeds 1 atm. When that happens, air from inside is transferred into space until the inside pressure is equal to 1 atm.

=== Turning Completeness ===
Pneumatic valves make [https://github.com/space-wizards/space-station-14/pull/10520 atmos turing-complete].

=Species Specifics=
Not every [[Playable Species|species]] breaths oxygen, and not every species exhale carbon dioxide. Here are the differences between every species, their needs, and what they exhale:
* Oxygen is toxic to Voxes. Even the slightest about will poison them, but only after 30 seconds of them breathing it in. Instead, they breathe nitrogen and exhale miasma. (This is why some stations have "Vox Boxes." If a station you're on doesn't have one, consider making one!)
* Slimes breathe nitrogen and exhale nitrous oxide. Water Vapor is extremely harmful to them.
* Harpies need a higher amount of oxygen in the air to breathe. The default is 18 mols, but for Harpies it's 22 mols. They are also more sensitive to toxins, meaning only a slight amount of carbon dioxide can cause them to suffocate and be poisoned.
* Dionas can breathe in carbon dioxide in in addition to oxygen.
* Feroxi can breathe in water vapor. This stops them from suffocating if they're dehydrated.
* A lack of air is dangerous to Arachnids, as they take twice as much asphyxiation damage and recover twice as slow. Keep this in mind if they're caught in a spaced area!

Try to keep in mind what species are on station, that way you can prioritize their needs when needed!

=Gases=
{{Stub}}
==Introduction==
The gases are the most important part of Atmospherics. There are currently 9 gases in the game, each of them has its own Specific Heat Capacity and Molar Mass. Most of them can be created using Gas Miners or created in combustion reactions.

==Gases==

{| class="wikitable sortable"
|+ Gases in SS14
|-
! Gas !! Description !! Specific Heat Capacity !! Molar Mass (g/mol)
|-
| Oxygen (o2) [[File:Oxygen gas.png]] || Colorless, reactive gas that humans need to breathe to stay alive. Key oxidizing agent in most combustion reactions. || 20 || 32
|-
| Nitrogen (n2) [[File:Nitrogen gas.png]] || Colorless, odorless, inert gas. Somehow, slimes and voxes breathe this. || 30 || 28
|-
| Carbon Dioxide (co2) [[File:Carbon dioxide.png]]|| Colorless, odorless, relatively inert gas. Exhaled by creatures that breathe oxygen. Toxic in high enough quantities. The reason why atmospheric technicians are employed. || 30 || 44
|-
| Plasma (P) [[File:Plasma.png]] || Purple, putrid, highly-combustible, and toxic gas. Combusts in the presence of oxygen, but will not ignite on its own. Unfortunately, it is also vitally important to industrial and scientific activities aboard Nanotrasen stations. || 200 || 120
|-
| Tritium (T) [[File:Tritium.png]] || Green, highly-combustible, and radioactive. Combusts in the presence of oxygen. It is formed by the combustion of Oxygen and Plasma. To form Tritium, there must be 96 times more Oxygen than Plasma during the reaction. If there is too much Plasma, the reaction will produce Carbon Dioxide instead. || 10 || 6
|-
| Water Vapor (H2O) [[File:Water_Vapor.png]] || Water in gaseous form. Due to the unique environment of space, does not condense into liquid water. Harmful to slime people. || 40 || 18
|-
| Miasma (NH3) [[File:Miasma.png]] || Purple, foul-smelling gas. Breeds disease, toxic, and harmful in sufficiently large concentrations. A by-product of nasty biological processes, including rotting bodies. || 20 || 44
|-
| Nitrous Oxide (No2) [[File:Nitrious_Oxide.png]] || Colorless, Otherwise known as "laughing" or "sleepy" gas, it acts as a sedative to non-slimes and is toxic in very high concentrations. Unfortunately, this stuff is exhaled by slimes. Formed from Frezon and Nitrogen || 40 || 44
|-
| Frezon (F) [[File:Frezon.png]] || Blue-greenish gas. Used as an industrial coolant. Used recreationally by some for its euphoric effects, before their lungs freeze out. It has a high value and is made by mixing cold Tritium and Oxygen. || 600 || 50
|}

{{Guides Menu}}

Practical Atmospherics

2025-06-26T03:41:54Z

HTMLSystem: Removed Species Specifics form this page.

{{Rewrite|todo=Big rewrite needed - TEG burn chambers, Triton production, Frezon production}}

{{Stub}}

[[Atmospheric Technician|Atmospheric Technicians]] are concerned with maintaining a safe atmosphere in the station by:
# Setting up the station's gas distribution system, or "distro," to supply the station with breathable air.
# Using handheld gas analyzers and fixed air alarm systems to monitor levels of both safe and hazardous gases.
# Utilizing holofan projectors and inflatable walls to cordon off hull breaches or gas leaks.
# Moving and placing portable scrubbers to manually filter the air in case of escaped gases.

= Understanding the Distribution Area =
The distribution area (or, '''Distro''') refers to the area of Atmos that contains the origin point of the air and waste networks, as well as the chambers for storing and processing the gases.

A distro’s purpose is to:

# Supply oxygen and nitrogen to a gas mixer which supplies air to the station.
# Filter waste and toxic gases from the station.
# Store gases in a secure area where [[Atmospheric Technician|Atmos Techs]] are able to work with them.
The distro is able to do all of these things because of the system of pipes, pumps, filters, and mixers it is outfitted with. '''Every distro does NOT require placing/altering pipes for it to function properly!'''

===Distro Annotated===
A typical distro layout is shown below:

[[File:Atmosia Annotated.png|border|center]]

# Nitrogen holding chamber with (maybe) a nitrogen gas miner
# Oxygen holding chamber with (maybe) a oxygen gas miner
# Pump for moving nitrogen to the mixer
# Pump for moving oxygen to the mixer
# Mixer to mix nitrogen and oxygen in an appropriate ratio for the station
# Volume pump to move mixer output to the station's main distro pipe
# Main distro pipe
# Valve to shut off freezer
# Freezer to reduce air temperature in distro
# Valve to shut off heater
# Heater to increase air temperature in distro
# Main waste pipe
# Volume pump to move air into the filter banks
# Bank of filters to separate different types of gases from the waste pipe

===Holding Chambers===
[[File:Atmos holding chambers.png|thumb|Gas holding chambers]]

Holding chambers store a supply of gas for you to pump into the station when needed. Some stations come with gas miners that produce an unlimited supply of the mined gas. Walls and windows prevent gas from escaping to space; if the holding chambers are broken, then the gas inside will be lost.

Holding chambers may be labeled with the [[#Gases|type of gas]] that they are designed to store.

Use [[Pipes and vents#Pumps|pumps]] to move gases in and out of holding chambers.

===Mix Chamber===

[[File:Mix chamber in use.png|thumb|A mix chamber in use]]

The mix chamber is an empty holding area with its own separate loop of pipes and pumps in atmospherics. The mix loop is generally marked with brown pipes and the holding chamber can usually be found close to the external hull, separated from the station by reinforced walls and windows. There will be an emergency button nearby to vent the chamber to space if you need to dump your mix in case an accident arises, or you just wish to reset the chamber for a new mix. The mix chamber is here for you to experiment with different mixes, ratios, temperatures, and pressures while combining gases.

On most stations the Mix chamber will loop around to either to the distro loop, or back to the waste loop. It is generally a good practice to have your mix loop flow back into the waste loop to recycle any unspent gases. You should '''NEVER''' have the mix loop flow into distro unless you have a [[Traitor|very good reason.]] Most savvy Atmospherics Technicians physically disconnect the mix loop from distro at round start to prevent an easy sabotage target or accident from occurring later in the round.

See the guide to [[Gases]] if you are interested to learn how different gases interact with each other at different temperatures and pressures.

See the guide to [[Setting up the mix chamber]] if you want to learn how to properly and safely use the mix chamber.

==Setting Up The Distro==
===Main Distro Loop===
The first step in setting up the distro is to determine which line goes to the [[Pipes_and_vents#Vents|air vents]]. It is usually colored blue to make it easily identifiable. Once you’ve identified that line, follow the pipes back to the Oxygen and Nitrogen chambers.

Out of the chambers, there are two lines of pipes, one that goes ''into'' the chamber from a gas filter (14) and one that comes ''out'' of the chamber through a pump (3), (4). Turn these pumps on and set them to max pressure. After that, follow the pipe that leads out of the chambers and you’ll find they eventually lead to a gas mixer (5). Set it to the correct air mix (21% Oxygen to 79% Nitrogen) and pressure. If there is a pump after the mixer, you can set the pressure to 4500kPa. Otherwise, set the pressure to 200kPa

Air vents will pump air from distro into the station as long as the pressure inside distro is positive. Increasing the pressure inside distro allows the air vent pumps to move air faster. Contrary to popular belief, the pressure inside '''does not''' set the pressure of air coming out of the actively pumped air vents that start connected to distro.

Check the pressure of distro at round start and periodically throughout the shift. Low or slowly rising distro pressure at round start is a sign of <s>shoddy station quality</s> design flaws causing low flow rates into distro. Low distro pressure in the middle of the round may be indicative of spacing on the station.

===Waste Loop===
Waste, or the waste loop, is usually marked with red pipes and is responsible for removing waste gas around the station via scrubbers. These pipes start and end in atmospherics and are looped around the entire station. The main purpose of the waste loop is the ensure that harmful gases get removed from the station's atmosphere. Scrubbers will remove gas from the hallways and return it to Atmospherics where it will then be separated by gas filters into various holding chambers. Harmful gases will be deposited into their assigned chambers and the breathable air will once again make its way back to Distro and into the station to continue the cycle.

To set it up, follow the line and configure all of the gas filters going into the chambers to the correct gas (14). At the end of the waste line you will find a passive vent going to space. All the unfiltered gas will end up in space. Make sure the valve leading to the vent is opened.

===Gas Recycling===
Not all stations come with an O2 miner, '''[[Maps#Shōkō_Station|Shōkō]] in particular has no O2 gas miner''', so they require a [[Pipes_and_vents#Gas_Recycler|gas recycler]] to get Oxygen. It turns Carbon Dioxide into Oxygen and Nitrogen Oxide into Nitrogen.
It takes a bit of instruction to use, and the basic premise is as follows:
* A mix of gases that is at least 300 degrees Celsius and pressurized no less than 3000 kPa enters through the north side of the recycler, and the mix exits out the south side, with some of the carbon dioxide converted to oxygen and some of the nitrous oxide converted to nitrogen.

The recycler loop must be heated to at least 300 degrees Celsius (~575 Kelvin), after that, pressure must be at least 3000 kPa. Pressure can be added by increasing the presence of other gases (not necessarily CO2 or N2O) into the recycler loop’s pipes. Nitrogen is usually abundant and inert, so it is a good contender. Pressure in the pipes will lower as gases leave the recycler loop, so a pump is often placed at the end to regulate pressure.

''Note that gases that leave the recycler will remain heated, so it’s important to regulate temperature if the O2 is going to be used in station air. A freezer can be placed after the recycler loop, or after the breathable air mixer to ensure the station doesn’t burn alive.''

==Optimizing The Distro==
You can optimize the distro the layout to more effectively pump gases into the station. Specific steps to do so vary from station to station. Here is an example of setting up distro for the [[#Atmos Annotated|example above]]:

# Remove (6) and replace it with a straight pipe segment. Pumps reduce gas flow rate, and when spacing occurs, (6) is typically a bottleneck when re-pressurizing the station.
# Set (5) to output 200 kPa. The pressure in the distro pipe influences how quickly air vents can move air from distro into the station. Setting this too low reduces the flow rate, but setting this too high could be dangerous if a [[Traitor]] replaces an air vent with a passive vent.
# Increase output pressure of (3), (4), (13) and (14) to their maximum settings.

= Setting up and understanding the Thermoelectric Generator (TEG) =

{{Stub}}

''This section is currently an incomplete placeholder guide. I do not know this stuff sufficiently to write the guide. For better info, check #atmos thread on Discord.''

The TEG has two pipe inputs for gasses - an input for a hot gas, and an input for a cold gas.

The TEG works by transferring heat energy from the hot input gas to the cold input gas, generating power as part of the transfer. Currently (June 2025) the amount of heat transfered from a gas when it passes through the TEG is 10% - meaning 90% of heat energy in the gas remains. How much heat energy a gas can "contain" is determined by its [[Atmospheric Science#Gasses|specific heat capacity]].

Furthermore the efficiency of the TEG scales with the difference in temperature between the hot gas and the cold gas.

Thus, ultimately for the TEG to work we need:
* A cold gas - the "cold loop"
* A hot gas - the "hot loop"
* Continious flow of both gasses.

== The cold loop - space radiators and cooling the TEG ==

To maintain the TEG's output, the cold loop will need some way to stay cold. Space is cold... sort of. There isn't really anything to give the heat to. Instead, radiators placed outside in space have to release the heat as infrared radiation, which is significantly less effective than exchanging heat with an atmosphere. You will need more radiators.

The best way to use radiators for the cold loop is in parallel, with each radiator having a volume pump going into it and a gas pump going out. These pumps will split up the incoming gas equally and force circulation through the radiator. The speed for the input pumps should each be set as a fraction of the 200L/s maximum speed of the volume pump, divided by the amount of radiators, for example if you had 4 radiators in parallel, the input pumps would need to be set to 50L/s each.

Placing the same radiators in series will mean the output is technically colder, but the heat loss diminishes as the gas cools and passes through more radiators, resulting in a reduction of flow from the smaller pressure difference between the sides of each successive radiator. Flow is just as important as temperature for the cold loop.

Also, radiators in space work better on lattice, as more of the radiator is exposed. Remember that underfloor tiles can be removed using a fireaxe or RCD.

When filling the cold loop, you will want a gas with high heat capacity, such as plasma or possibly frezon, to maximise the amount of energy that can transfer between the loops. The lower temperatures mean your usual cold loop can easily take an entire canister of plasma without causing issues.

== The hot loop - setting up and using the burn chamber ==

There are two ways to get a hot gas for our TEG - we can either heat it up by exposing it to a very hot area (the burn chamber), or by pumping in the hot gasses from a fire. However, because usual fire product gasses (carbon dioxide and water vapor) usually have very poor specific heat capacity, and can be difficult to supply consistantly, almost always the former set up is used. Furthermore, discarding the gas after using it to power the TEG is very very wasteful - recall that only 10% of the gas' heat is used every time a gas passes the TEG!

Therefore instead we set up a system, where a gas is passed through a very hot room through radiators, taking up heat from it, passes through the TEG, and then is pumped back around to be heated up again. This is known as the "hot loop". And the aformentioned hot chamber can be made by, well, starting a fire in it - this is called "the burn chamber".

===''The Burn Chamber'' ===

The burn mix, as it is known, can be made either by mixing gasses from two canisters, or by mixing gas from a plasma can and gas from the oxygen miner. At round start, most TEG loops are unfortunately set up with the far more annoying former.

Usually a mix of 3% plasma and 97% oxygen is used. Plasma and oxygen burn at a ratio of roughly 1:1.4, but the high amount of oxygen meets the 'supersaturation' condition to make tritium, which reacts with oxygen again and is the source of majority of the energy in a burn.

Keep in mind that the pressure will rise with temperature, and depending on how much fuel was added initially, you may find the pressure to be above the 9MPa maximum limit for air injectors, even once the gas has cooled below what is useful for the TEG. Therefore, if you want to add more fuel, the pressure will have to be lowered. The simplest way to do this is using the venting blast doors found on every TEG burn chamber. Alternatively you could build scrubbers or pumps to remove the gas which will reduce the heat lost to space.

Igniting the burn chamber can be done in several ways. Ideally you use an igniter, placed in the burn chamber and linked to a button. However, not all TEG burn chambers come with one, and furthermore the igniter is actually a pretty poor ignition tool.

=== ''The Hot Loop'' ===

The second, crucial part of our set up is the hot gas we will pump through the TEG. This can be in a way understood as a way to transfer heat from out burn chamber to the TEG. Thus, similarly to the cold gas, you want to use a gas with high heat capacity. Practically this usually also means plasma.

We want our hot loop gas to become as hot as possible. This is for a couple reasons, mentioned before - only 10% of a gas' heat is used each time it passes through, and the output of the TEG scales based on the temperature difference between the cold loop and the hot loop.

In a typical hot loop set up there will be 3 critical pumps and 1 critical valve.
* The burn chamber input pump.
* The burn chamber output/TEG input.
* The TEG output.
* The pressure release valve.

Recall, that it is vital there is a continuous flow of gas through the TEG. If the flow stops, the TEG immediately ceases producing power.

You may recall a crucial formula from [[Atmospheric Science]]: pV = nRT. Practically this means the hotter the same volume of gas becomes, the higher its pressure. Because all pumps (including volumetric ones!) have pressure limits, at which they will stop pumping, this means should your pressure get too high, your TEG will "stall".

The pressure release valve is your "emergency button" to reduce pressure should a stall occur. However it is better to avoid a stall in the first place.

A few things can help you in achieving that:
* Use as little gas as possible for your hot loop
* Use volumetric pumps as they have a higher pressure limit. Keep in mind that mixers act as pressure pumps, while filters act as volumetric pumps!
''* Other (add here)''

== A simple step-by-step guide to set up and maintain a station's TEG==

Ok that's a lot of text right? A lot to take in? Yeah. So here is a simple step-by-step to practically set up your TEG at round start, so the station has power.

=The Mix Chamber=

==About this guide==
So you are ready to graduate from Station Engineer to Atmospherics Technician and are looking for something a little more in-depth than laying down wires and clicking on boxes to set up the AME? Well look no further, after reading this you will be smarter than those [[Station Engineer|dummies next door]] and have the skills to show for it!

This guide is designed to walk you through, step by step, in creating your first burn mix using the mix chamber. After completion you should have a better understanding on how the mix chamber functions. If everything is done right you will make your engineer coworkers jealous and will be one step closer to mastering atmospherics! If things go wrong, angry crewmembers will be yelling death threats and the admins will very interested in you! Just remember to always learn from any mistakes and understand where and why something went horribly wrong!

Make sure you have a basic understanding on how atmospherics works.

==First things first==
So you just started your shift as an Atmospherics Technician on space station 14 and want to use the mix chamber. The very first things you should do is grab your equipment. Make sure you have either your firesuit and helmet or atmospheric hard suit and internals available to provide you some protection in case of an accident. Next, be sure to grab your handy dandy gas analyzer to be able to see what's going on inside those pipes. Lastly and arguably the most important thing you should do at round start is to consult with your fellow atmospheric technicians and [[Chief Engineer]]. Declare your intention to use the mix chamber and make sure everyone is on the same page. The last thing you want to have happen is your coworker unwittingly dumping your burn mix into the room by un-wrenching a pipe or finding out that they accidently pumped your burning hot plasma mix into distro.

==Locating the mix chamber==

[[File:Mix chamber 2.png|thumb|An example of a mix chamber]]

Look around atmosia and locate the gas mixers by the different gas holding tanks. Follow the gas mixers outlet pipes until they all combine and terminate into a pump or manual valve that leads out of the station's hull. Look through the window and observe if the pumps lead into a nearby empty chamber containing both inlet and outlet passive vents and a blast door. If you found this, congratulations! you have located your mix chamber!

Some stations, usually the small ones, are not equipped with a mix chamber. If the pipes lead to a vent in open space and you do not see a nearby empty chamber then there is mostly likely no mix chamber on this station. Feel free to contact the head of your department and Centcom to complain about station budget cuts!

==Setting up the pipes==

[[File:Atmosia mix chamber guide.png|thumb|A handy guide with arrows and numbers]]

Every station has a different layout so it is a good practice to always refamiliarize yourself at round start with the mix chamber and the mix loop. After you located the mix chamber follow the pipes that flow into and out of it and get comfortable with where they lead. A general mix loop will take gas from the holding tanks, through gas mixers and into the mix chamber. From there they will exit the chamber and loop into an area where you can connect ports and canisters to extract your gas. Some layouts do not have a canister loop and you might have to create your own if needed. Finally the mix loop will connect into waste where the unused gas will be returned to the gas holding chambers to be recycled and reused at a later time. Once you are 100% sure where the mix loop is you are ready to add gas to the chamber.

#Triple check that the pipes leading out of the mix chamber '''do not''' flow into distro. if they do, either physically disconnect them or manually toggle off the pumps.
#Toggle off all the gas pumps, except oxygen and nitrogen, leading out of the gas holding chambers.
#toggle off all the gas mixers with the exception the oxygen and nitrogen mixers used for distro.
#Toggle off all the pumps leading out of the mix chamber up to the waste loop.
#Toggle closed the mix chamber blast doors using the button.
#Use your gas analyzer on the pipes leading into and out of the mix loop and check to see that there is no gas in the pipes. If there is, locate where the gas is coming from and toggle that pump closed. Drain the mix loop by locating the mix to waste pump at the end of the mix loop and toggle it open until the gas is gone. Repeat until all gas is gone.
#Locate the pumps leading out of the oxygen and plasma holding chambers and set them to max pressure.
#Locate where the oxygen flows into the next gas mixer down the line and max the pressure. Be sure to configure the input ratios depending on what side of the mixer the oxygen is flowing into. '''Do not touch the gas mixers used with oxygen and nitrogen in the distro loop.'''
#Work your way down the gas mixer line maxing the pressure and configuring the input ratios until you reach the mixer for the plasma holding tank. Set the input for oxygen to be at 66% and the input for plasma to be 33% and set the pressure to be around 100-200kPa.
#Continue down the line up to the chamber opening up and maxing the pressure of all pumps until you see gas flow into the mix chamber.

If everything is done correctly you should see plasma gas in the mix tank. The exact composition of the gas inside should be 66% oxygen and 33% plasma. If you see this then congratulations! you have created your very own burn mix!

''(note that you may need to adjust the output pressure of the oxygen and plasma mixer. Too much pressure will clog up the mix chamber and waste pipes with water vapor waste gas as the plasma burns. Too little of a pressure and the plasma fire will burn itself out. Experiment with different pressures to find one you like!)''

If you don't see any gas inside the mix chamber chances are that you forgot to toggle open a pump or max the pressure. double check that the blast doors are closed and that all the outlet pumps on the mix chamber are toggled off. Follow the mix loop back from the mix chamber and use your gas analyzer on each pipe segment until you find where the pressure is at. double check that the right pumps are open and that the pressure is maxed. If there is still no gas flowing double check the mixers and check to see the correct inlet ports are set to the right percentage on the mixer interface. If there ''still'' isn't gas in the chamber and you double checked every pipe pump and valve then check that there is gas in the holding tanks. Some stations do not have a plasma miner or there might be a breach venting all your gas into space.

==Igniting the burn mix==
So, your mix chamber is full of sparkling plasma and oxygen, what's next? Firstly, understand that plasma will ignite at higher temperatures. A plasma fire requires both a steady flow of oxygen and plasma to remain ablaze and will create waste gas in the process. There are many ways to ignite your burn mix but the most common and safest way is to wrench a heater on one of the burn mix outlet pipes. A quicker, dumber, more flashier way is to chuck a lit welder or fire source into the chamber before pressurizing it.

[[File:Heater burn mix location.png|thumb|A suitable location for a heater to combust the burn mix]]

Lets go with the heater method. Simply find a heater nearby in atmospherics or steal one from your silly engineer coworkers. Alternatively you can craft one using a machine frame and some components. Once you have acquired your heater, drag that bad boy over to the mix chamber's outlet pipe. Make sure the location you have chosen has pressurized gas from the chamber, use your gas analyzer to check! You may need to add or remove some pipes and a pump to get a suitable location. Once you have the right location, use your wrench to secure it to the pipe. Open the interface, max out the temperature and turn it on. Depending on the amount of burn mix and its temperature you may need to wait a couple of seconds before it combusts into a beautiful plasma fire. Heaters(and freezers) will sometimes act strangely on horizontal and elbow pipes and not heat up the gas inside.. You may need to move it around until you find a place that works for you.

''With the addition of holofans, it may be easier to use a holofan to hold back the gas and allow you entry to chuck a lit welder into the burn chamber.''

Once your burn mix is lit you may notice it going out sporadically. This is because we still have the mix to waste pipes toggled off and the plasma fire is creating water vapor as a waste gas witch is taking up valuable space, displacing oxygen and plasma and snuffing out our fire. Simply open up your mix loop to waste and watch as the gas gets syphoned out through the loop back into the gas holding chambers. You may need to manually vent the mix chamber using the blast door toggle button to speed up the venting process. Once you have the mix loop connected to the waste loop, plasma and oxygen will continuously flow from the gas holding chambers into the mix chamber, combust into flame, and work its way out through the loop back into the holding chambers ready to start its journey once again.

Congratulations! you now have a fully self sufficient burn mix! The fire will continue to burn until you either run out of oxygen or plasma, or until the waste loop cant keep up with the pressure. Feel free to sit back and relax for a time while watching your burn mix combust into flame.

==What now?==
Now that we have a stable plasma fire, now what? Well, that's up for you to decide! Experiment with different plasma and oxygen ratios and see how it influences the temperature and pressure. Perhaps try to introduce a third gas into the chamber and see what happens. Extract your burning hot gas into a canister and drag it along behind you to show it off to the crew while grabbing a well deserved snack and drink at the bar. The possibilities are yours to decide! have fun and remember to enjoy the remainder of your shift aboard Space Station 14.

{{Guides Menu}}

Basics of Atmos

2025-06-26T03:41:10Z

HTMLSystem: Added Species Specifics to this page.

{{Rewrite|todo=Details, details, details. Someone from #atmos-thread, please!}}

= The Basics of Atmos =
Atmos seems complicated on it's surface, but it's easier to understand once you learn the terms and how gases work.

== Pressure ==

Pressure is measured in kPa (Kilopascals). A safe amount of kPa is 80-140 kPa. If kPa falls under or over that amount, most creatures will start to take barotrauma damage. Most atmos devices are set to 101.3 kPa.
Pressure rises as temperature rises, and lowers as temperature lowers.
Gases will always try to flow from higher pressure to lower pressure to create an equilibrium. It's important to be mindful of the pressure in a room or pipe before you open a door or unanchor a pipe.
Most atmospheric devices clog around 4500 kPa, some only clog at 9000 kPa, and some don't clog at all.

== Temperature ==

Temperature is measured in Celsius and Kelvin. A safe amount of temperature varies from species to species, the temperature a room should be is around 20°C (293.15K) as that's safe for all species.
Heat and cold will always try to spread to create an equilibrium. Be mindful before you open a door or unanchor a pipe. Remember that space is naturally cold, so any spaced rooms will be very cold after you patch them up.

== Mols ==

The exact volume of gases is measured in mols. It is important to pay attention to the exact mols of gases, such as dealing with the TEG or toxic gases that have the potential to poison people.

==Toxins==
''Main article: [[Gases]]''

There are many toxic gases some species (like Harpies) are hypersensitive to toxins, some species (like Voxes) are poisoned by Oxygen. It's important to not leave them unattended as not many people know what that bright green gas is on the other side of the door, and will walk in there without knowing that they will be dead in 10 secs. it's important that you use your equipment given to you to keep people out of the affected area and siphon the gases out as safely and fast as possible.

= Pipes, Vents and Other Atmospheric Devices =

== General Information ==
All gases can flow through the various pipes found in the game. Gas will always attempt to flow from higher pressure to lower pressure. If a gas is not in a pipe, canister, or tank, it will be in the atmosphere and will interact with other objects.

Gas will always try to even out the pressure. For example, if a empty canister is connected to a pipe pressurized at 4500kpa, the canister will also only be pressurized to 4500kpa. If a canister pressurized at 9000kpa is connected to the same pipe, gas will flow out of the canister until a even pressure is acquired.

If pressurized pipes get unwrenched they will dump all of their contents into the surrounding atmosphere and will, depending on the pressure level, violently blow the wrench user away. You will know if you are unwrenching a pressurized pipe if you get the message stating "A gush of air blows in your face... Maybe you should reconsider?" It is good practice to always use your gas analyzer on every pipe before unwrenching to ensure it is depressurized.

All pipes can be unwrenched to disconnect them from others. By using a welder on a unwrenched pipe segment you can deconstruct it into steel.

A broken or unconnected segment of pipe WILL NOT allow gas to pass through. Do not worry about all your gas escaping out of a broken or unconnected pipe segment.

Most pumps, mixers, and filters do not require power to function. Only air vents and scrubbers require power. You can shift-click on a segment to examine it to see if it is powered.

== Pipes ==
Allows gas to flow freely. Comes in four shapes. Straight, Elbow, 3-way-juntion, 4-way-junction.
{| class="wikitable"
!Image
!Name
!Description
|-
|[[File:Pipe_straight.png]]
|gas pipe straight
|A straight segment of pipe.
|-
|[[File:Pipe_elbow.png]]
|gas pipe bend
|A elbow segment of pipe.
|-
|[[File:Pipe_3_way.png]]
|gas pipe T junction
|A three way junction segment of pipe.
|-
|[[File:Pipe_4_way.png]]
|gas pipe fourway
|A four way junction segment of pipe.
|}

== Atmospheric Devices ==
{| class="wikitable"
!Image
!Name
!Description
|-
|[[File:Gas_pump.png]]
|Gas Pump
|Pumps gas in a specific direction. Has a maximum throughput of 4500 kPa (4.5 Mpa), clogs at 4500 kPa. Loses efficiency as the volume of gas rises. Can be turned on/off to allow/disallow gas flow. Requires power.
|-
|[[File:Volumetric_gas_pump.png]]
|Volumetric Gas Pump
|Pumps gas based on the mole amount instead of pressure. Has a maximum throughput of 200 L/s, clogs at 9000 kPa (9 Mpa). best used when dealing with extremely high pressure. Requires power.
|-
|[[File:Manual_valve_closed.png]]
|Manual Valve
|Allows gas to flow to and from whatever pipes it's connected to. Can be opened (green light) or closed (red light). Doesn't require power.
|-
|[[File:Passive_gate.png]]
|Passive Gate
|An air valve that's one-way only. The red circle is the inlet part. Does not require power.
|-
|[[File:Gas_Mixer.png]]
|Gas Mixer
|Allows you to combine the gas flow of two pipes into one. Has a maximum throughput of 4500 kPa, clogs at 4500 kPa. Allows you to set the percentage of throughput of both inputs. The primary port is parallel with the output while the side port is perpendicular. If one input is missing, it will not allow gas flow.
|-
|[[File:Gas_Filter.png]]
|Gas Filter
|Filters out a selected gas into another pipeline. Has a maximum throughput of 1000 L/s, clogs at 4500 kPa. Filtered gas will exit out of the perpendicular outlet while all other gases continue to flow down the parallel outlet. The filter outlet will not allow gas flow if no gas is selected or if no pipe is connected to the filter outlet.
|-
|[[File:Air_Sensor.png]]
|Air Sensor
|Scans the atmosphere of the tile it's on, shows the information on an air alarm.
|-
|[[File:Air_alarm.png]]
|Air Alarm
|Shows information of the atmosphere in the surrounding area. Allows you to control all the air vents and scrubbers it's connected to. Requires power.
|-
|[[File:Air_vent.png]]
|Gas Vent
|Used to move gas into the surrounding atmosphere. Can store 4500 kpa but only allows 101.3 kPa to flow out of it. If external pressure is higher than the limit, no gas will flow out of the vent. If external pressure drops too much, the vent will go into under-pressure lockout (shown by the vent having yellow lights instead of blue lights) and no gas will flow out of it. You can right-click on a vent and unlock it from under-pressure lockout after you fix the area. Requires power
|-
|[[File:Duel-port_vent.png]]
|Dual-port Gas Vent
|Exactly the same as a normal gas vent, but has two input options instead of one. Requires power.
|-
|[[File:Passive_vent.png]]
|Passive Vent
|Allows any pressure and gas to flow in and out of it. Doesn't require power.
|-
|[[File:Air_Scrubber.png]]
|Air Scrubber
|Slowly siphons selected gases out of the surrounding atmosphere. You can change what gases it siphons via an air alarm. Must be connected to an outlet port to function. Glows blue when working and glows red when in panic mode. Requires power.
|-
|[[File:Air_injector.png]]
|Air Injector
|inject air into the surrounding atmosphere. Does not allow backflow. Maximum throughput is 9000 kPa, clogs at 9000 kPa. Requires power.
|-
|[[File:Pneumatic_valve.png]]
|Pneumatic Valve
|Has three ports: Control, inlet, an outlit. Allows gas flow like a manual valve, but only if the pressure at the control port is high enough. To turn it on, the control port must be at least 1 atm higher than the lowest pressure connected to the valve. I.E the lesser of the inlet and outlit pressure.
|-
|[[File:Canister.png]]
|Canister
|Used to hold and transport gas without the use of pipes. Use a wrench to connect a canister to a connector port. You can put air tanks into canister to fill them with whatever gas is in the canister.
|-
|[[File:Connector_Port.png]]
|Connector Port
|Used to transfer gas from pipes into canisters. Gas will flow into the canister until pressure evens out between the connector port and the canister. Use gas pumps to force more gas in/out of canisters.
|-
|[[File:Gas_miner.png]]
|Gas Miner
|Creates new gases from nothing, used to make sure stations have an infinite amount of a specific gas. Stations usually only come with an oxygen and nitrogen miner. Found in gas chambers in atmos.
|-
|[[File:Gas_recycler.png]]
|Gas Recycler
|Used to recycle carbon dioxide and nitrious oxide into oxygen and nitrogen, respectively. Requires power, 3000 kPa and the gas to be 300°C to work.
|-
|[[File:Condenser.png]]
|Gas Condenser
|Condenses an gas into liquid.
|-
|[[file:Radiators.png]]
|Radiator
|Used to transfer the temperature of a room to the gas in pipes.
|-
|[[File:Freezer.png]][[File:HeaterOff.png]]
|Freezer/heater
|Connected to pipe networks to heat up the gas inside. Has hellfire variants.
|-
|[[File:Portable_Scrubber.png]]
|Portable Scrubber
|Works just like an air scrubber, but you can pull it around! Anchor it down to have it filter harmful gases out of the air.
|-
|[[file:Space_Heater.png]]
|Space Heater
|A portable heater used to regulate temperatures in certain rooms. Anchor it down and click the interact button to make it work.
|}

=== Design Examples ===
'''Pressure Relief Valve'''

[[File:Pressure_relief_system.png]]

This pressure relief system drains the air inside to space if the pressure exceeds 1 atm, which can be used to guard against accidental station overpressure events. A passive vent inside (1) is connected to the control and the inlet. Another passive vent in space (2) is connected to the outlet. Since the outlet pressure is 0 kPa, then the pneumatic valve will only be on if the inside pressure exceeds 1 atm. When that happens, air from inside is transferred into space until the inside pressure is equal to 1 atm.

=== Turning Completeness ===
Pneumatic valves make [https://github.com/space-wizards/space-station-14/pull/10520 atmos turing-complete].

=Species Specifics=
Not every [[Playable Species|species]] breaths oxygen, and not every species exhale carbon dioxide. Here are the differences between every species, their needs, and what they exhale:
* Oxygen is toxic to Voxes. Even the slightest about will poison them, but only after 30 seconds of them breathing it in. Instead, they breathe nitrogen and exhale miasma. (This is why some stations have "Vox Boxes." If a station you're on doesn't have one, consider making one!)
* Slimes breathe nitrogen and exhale nitrous oxide. Water Vapor is extremely harmful to them.
* Harpies need a higher amount of oxygen in the air to breathe. The default is 18 mols, but for Harpies it's 22 mols. They are also more sensitive to toxins, meaning only a slight amount of carbon dioxide can cause them to suffocate and be poisoned.
* Dionas can breathe in carbon dioxide in in addition to oxygen.
* Feroxi can breathe in water vapor. This stops them from suffocating if they're dehydrated.
* A lack of air is dangerous to Arachnids, as they take twice as much asphyxiation damage and recover twice as slow. Keep this in mind if they're caught in a spaced area!

Try to keep in mind what species are on station, that way you can prioritize their needs when needed!

=Gases=
{{Stub}}
==Introduction==
The gases are the most important part of Atmospherics. There are currently 9 gases in the game, each of them has its own Specific Heat Capacity and Molar Mass. Most of them can be created using Gas Miners or created in combustion reactions.

==Gases==

{| class="wikitable sortable"
|+ Gases in SS14
|-
! Gas !! Description !! Specific Heat Capacity !! Molar Mass (g/mol)
|-
| Oxygen [[File:Oxygen gas.png]] || Colorless, reactive gas that humans need to breathe to stay alive. Key oxidizing agent in most combustion reactions. || 20 || 32
|-
| Nitrogen [[File:Nitrogen gas.png]] || Colorless, odorless, inert gas. Somehow, slimes and voxes breathe this. || 30 || 28
|-
| Carbon Dioxide [[File:Carbon dioxide.png]]|| Colorless, odorless, relatively inert gas. Exhaled by creatures that breathe oxygen. Toxic in high enough quantities. The reason why atmospheric technicians are employed. || 30 || 44
|-
| Plasma [[File:Plasma.png]] || Purple, putrid, highly-combustible, and toxic gas. Combusts in the presence of oxygen, but will not ignite on its own. Unfortunately, it is also vitally important to industrial and scientific activities aboard Nanotrasen stations. || 200 || 120
|-
| Tritium [[File:Tritium.png]] || Green, highly-combustible, and radioactive. Combusts in the presence of oxygen. It is formed by the combustion of Oxygen and Plasma. To form Tritium, there must be 96 times more Oxygen than Plasma during the reaction. If there is too much Plasma, the reaction will produce Carbon Dioxide instead. || 10 || 6
|-
| Water Vapor [[File:Water_Vapor.png]] || Water in gaseous form. Due to the unique environment of space, does not condense into liquid water. Harmful to slime people. || 40 || 18
|-
| Miasma [[File:Miasma.png]] || Purple, foul-smelling gas. Breeds disease, toxic, and harmful in sufficiently large concentrations. A by-product of nasty biological processes, including rotting bodies. || 20 || 44
|-
| Nitrous Oxide [[File:Nitrious_Oxide.png]] || Colorless, Otherwise known as "laughing" or "sleepy" gas, it acts as a sedative to non-slimes and is toxic in very high concentrations. Unfortunately, this stuff is exhaled by slimes. Formed from Frezon and Nitrogen || 40 || 44
|-
| Frezon [[File:Frezon.png]] || Blue-greenish gas. Used as an industrial coolant. Used recreationally by some for its euphoric effects, before their lungs freeze out. It has a high value and is made by mixing cold Tritium and Oxygen. || 600 || 50
|}

{{Guides Menu}}

Atmospheric Technician

2025-06-21T19:32:04Z

HTMLSystem: Changed the information on the holofan to match DeltaV changes to it, fixed a link.

{{Rewrite}}

{{Job_Header
|department=ENGINEERING
|maincolor=854100
|secondarycolor=a75200
|image=Atmospheric Technician.png
|title=Atmospheric Technician
|difficulty=Hard to Very Hard
|requirements=10 hours in [[Station Engineer|Engineering]]
|access=Maintenance, Engineering, External, Atmospherics
|extendedaccess=None
|supervisors=[[Chief Engineer]]
|subordinates=None
|duties=Set up the TEG. Restore breathable atmosphere to depressurized areas. Ensure the station's air remains at liveable conditions. Get bored and create tritium. Create Frezon to sell for massive profits.
|guides=[[Power]], [[Basics of Atmos]], [[Pipes and vents]], [[Gases]], [[Setting up the mix chamber]]
|aliases=Life Support Technician, Plasma Scientist, "Atmos", "Atmosian"}}
As an atmospheric technician, your primary job is to maintain a safe and breathable atmosphere inside the station. As a member of the engineering department, you may also be expected to double as a [[Station Engineer]] <s>if they don't know what they're doing</s> in exceptional circumstances.

The primary threats to a safe and breathable atmosphere inside the station are:

* Air escaping into space due to intentional or unintentional removal of walls or floor tiles (''spacing'')
* Buildup of unpleasant or outright hazardous [[#Gases|gases]] such as ammonia or plasma

Atmospheric technicians are essential to keeping the station alive and breathing, and consequently are ineligible to be [[Traitor]].

==Quick-Start==
# Grab [[#Equipment|equipment]] from your atmospheric technician locker. You should grab at least a hardsuit or fire suit and helmet, a gas mask and gas tank, a gas analyzer, and a holofan projector. Consider grabbing inflatable walls, inflatable doors, steel sheets, and metal rods to be ready to fix spacing.
# Find the distro pipe and inspect its pressure and temperature using your [[#Equipment|gas analyzer]]. If the pressure is zero and shows no sign of rising, take corrective action.
# (''optional'') Set filters to recover gases from the waste pipe. Because [[Pipes_and_vents#Gas_Miner|gas miners]] are available on most stations, this step is not very important. And, unless [[Pipes_and_vents#Air_Scrubber|scrubbers]] are set to siphoning, there will only be waste gases in the waste pipe.
# Deliver [[#Equipment|portable scrubbers]] to locations that expect miasma build up. This is usually the [[Medical#Cloning_and_Morgue|cloning room or morgue in the medical bay]].
# Monitor the station's radio or patrol the station yourself for spacing or other atmospheric issues. Fix issues if they arise.
# Make sure that [[Antagonist|suspicious people]] are not sabotaging your department.

==Equipment==
Like your fellow [[Station Engineer|Station Engineers]], you start with a full belt of tools. Atmospheric technicians may also have access to:

{| class="wikitable"
|+ Atmospheric Equipment
|-
! Picture !! Name !! Description
|-
| [[File:OxygenTank.png|64px]] || Portable Oxygen Tank || Small enough to carry around. Hook this up to a mask, and you can have a portable air supply to breathe while in space or fixing leaks. People will probably ask you for these.
|-
| [[File:Gas Analyzer.png|64px]] || Gas Analyzer || Use this to analyze the composition of gases in the air around you, or to measure the temperature and pressure of gases inside pipes.
|-
| [[File:Portable Scrubber.png|64px]] || Portable Scrubber || Can be wrenched down to scrub waste gases to an internal tank. Useful for quickly containing gas leaks. Must be emptied once full.
|-
| [[File:Holofan Projector.png|64px]] || Holofan Projector || [[File:Holofan.png|thumb|right|A holofan projection]] Creates a holographic firelock (''holofan'') that blocks gas flow but allows objects to move through them. Holofans last forever until you take them down. Stores 6 charges, each charge is 1 holofan. You gain a charge back everytime you take down a holofan. Extremely useful when repairing a hull breach, since they will safely block the flow of station atmosphere while still giving access to move around freely to work.
|}

==Atmosia==
''Main article: [[Basics_of_Atmos|Basics of Atmos]]''

Atmospherics, sometimes referred to as Atmosia, is where most of the station's air handling machinery is located. Each station has a different atmospherics layout. While seasoned atmospheric technicians may have atmospheric layouts memorized, frequent <s>useless station remodeling</s> station engineering changes mean that it is more important to be able to quickly understand the layout of the station that you're currently working on.

==Gases==
''Main article: [[Gases]]''

==Pipes and Machinery==
''Main article: [[Pipes and vents]]''

==Pressure and moles==
[[File:Gas analyzer.png]]

All gas can be quantified by its pressure, mole amount, and temperature. These three variables are closely related and directly affect one another. If you add more gas(# of moles) to a given area, the pressure will increase. Take the same amount of moles and lower the volume by using a smaller room and the pressure will be even larger. If you then heat up the gas, the pressure will be even larger still. The opposite is also true, less gas means lower pressure. cooling down gas will also lower the pressure. Volume, or size of the room, also plays a role in pressure. A larger area will require more gas while a smaller area will require less gas to reach the same pressure. using this knowledge we can see why space has a low pressure because the area and temperature are so low.

Moles are a way of measuring how much gas is present in a given area. A higher pressure does not always mean more of a gas in the given area. If you want to physically fit a larger amount of a gas in a specific area, you will need to cool the gas down to lower the temperature, thus lowering the pressure allowing more moles to fit inside the given area.

If you open a canister will 100 moles of air into a large hallway, you will hardly notice a difference in pressure. However, if you open the same tank in a small room the pressure difference will be greater.

The standard livable air requirements are about 20 moles of oxygen and 80 moles of nitrogen at a pressure of 101kpa and temperature of 20° Celsius. If you have less than 20 moles of oxygen present, your character will begin to gasp and take oxygen deprivation damage. If the pressure is any lower or higher than 101kpa, your character will begin to take brute damage in relation to the depressurization or overpressurization levels. If the temperature is much lower or higher than 20°C, you risk your character taking burn damage from the extreme cold or heat.

Generally speaking:
*More gas(# of moles) = more pressure.
*Less gas(# of moles) = less pressure.
*Hot gas = more pressure.
*Cold gas = less pressure.
*Large hallway = more moles/higher temperatures needed to notice pressure change.
*Small hallway = less moles/higher temperatures needed to notice pressure change.

==Air Alarms==
Air Alarms can be found all over the station in form of panels. They connect and manage active vents, scrubbers, air sensors and firelocks together. They have 3 possible states: Normal, Warning and Alarm. Warning indicates possible build-up of dangerous gases or other issues with the atmosphere that aren't directly lethal. The Alarm state it will close all firelocks connected to that panel, indicating a possibly lethal threat, like a spacing.

At the bottom of the panel there is a mode selector. You can select between:
* Filtering - Normal filtering, removes all gases except Nitrogen and Oxygen.
* Filtering (wide) - Enables WideNet which also filters tiles adjacent to a scrubber.
* Fill - Turns off the scrubbers and fills the room through the vents.
* Panic - Sucks out all gases and turns off the vents.

You can view the atmosphere composition on the tile a sensor is located by using the Sensors tab, which gives you detailed insights about the gases, pressure and temperature.

==Dealing with gas leaks==
Gas leaks are a random even that occurs on the station. They can be usually quickly located by reports on the radio and firelocks going off. Most gases aren't directly harmful and are filtered off by the scrubbers network, but Tritium, Plasma or Frezon need to be quickly removed using Portable Scrubbers, usually found in the Atmos area of the Engineering department.

The most effective way of containing extreme pressures and temperatures (like these caused by plasma fires) is spacing the room, which can be done using an RCD or a fire axe.

==Space wind==
Explosive decompression, or ''space wind,'' is caused when a sudden low pressure or depressurization zone occurs and all the atmosphere flows from high pressure to low pressure. Space wind often happens due to a sudden hull breach or when the clown opens the external airlock. All personnel and lose objects in the area will be flung toward the low pressure area as if a gust of wind blows you towards the breach site, thus the name 'Space Wind' is dubbed.

Space wind is very deadly to any crew member not wearing hardsuits with internals. Space wind will often suck you far away from safety and toward the breach site. The damage you take from slamming into objects (and objects slamming into you) along with depressurization, lack of oxygen, and freezing temperatures will often quickly kill any unsuspecting crewmember who gets caught.

==Useful trivia and tricks==
*Always be prepared to fix a breach. Carry your Atmospherics hardsuit or firesuit with you so you can survive long enough to fix any breach at a moments notice.
*The Atmospherics firesuit is space proof and functions like a hardsuit. Just make sure you wear the helmet with it or else it wont give you any protection.
*The standard air mix is 21% oxygen and 79% nitrogen @ 101.325 kPa at 293.15K (20°C).
*A quick and dirty way to vent high pressure or unwanted gases is to expose the area to open space. Breach a wall or open an airlock to quickly suck out all the atmosphere. Just be sure you have the area sealed off and no crewmembers get caught in the depressurization zone!
*Overpressurization can be just as harmful as depressurization!
*A pressurized pipe will violently decompress if unwrenched!
*If you want to check the pressure and temperature of a pipe, hold your gas analyzer in hand and left-click on the pipe.
*Make sure that the distro loop never connects to anything else like the mix or waste loop. unless you want to flood the station with superheated plasma and risk getting an angry admin message.

{{Jobs Menu}}
[[Category:Jobs]]

Basics of Atmos

2025-06-21T17:43:53Z

HTMLSystem: Removed unneeded sentence form the beginning of the article

{{Rewrite|todo=Details, details, details. Someone from #atmos-thread, please!}}

= The Basics of Atmos =
Atmos seems complicated on it's surface, but it's easier to understand once you learn the terms and how gases work.

== Pressure ==

Pressure is measured in kPa (Kilopascals). A safe amount of kPa is 80-140 kPa. If kPa falls under or over that amount, most creatures will start to take barotrauma damage. Most atmos devices are set to 101.3 kPa.
Pressure rises as temperature rises, and lowers as temperature lowers.
Gases will always try to flow from higher pressure to lower pressure to create an equilibrium. It's important to be mindful of the pressure in a room or pipe before you open a door or unanchor a pipe.
Most atmospheric devices clog around 4500 kPa, some only clog at 9000 kPa, and some don't clog at all.

== Temperature ==

Temperature is measured in Celsius and Kelvin. A safe amount of temperature varies from species to species, the temperature a room should be is around 20°C (293.15K) as that's safe for all species.
Heat and cold will always try to spread to create an equilibrium. Be mindful before you open a door or unanchor a pipe. Remember that space is naturally cold, so any spaced rooms will be very cold after you patch them up.

== Mols ==

The exact volume of gases is measured in mols. It is important to pay attention to the exact mols of gases, such as dealing with the TEG or toxic gases that have the potential to poison people.

==Toxins==
''Main article: [[Gases]]''

There are many toxic gases some species (like Harpies) are hypersensitive to toxins, some species (like Voxes) are poisoned by Oxygen. It's important to not leave them unattended as not many people know what that bright green gas is on the other side of the door, and will walk in there without knowing that they will be dead in 10 secs. it's important that you use your equipment given to you to keep people out of the affected area and siphon the gases out as safely and fast as possible.

= Pipes, Vents and Other Atmospheric Devices =

== General Information ==
All gases can flow through the various pipes found in the game. Gas will always attempt to flow from higher pressure to lower pressure. If a gas is not in a pipe, canister, or tank, it will be in the atmosphere and will interact with other objects.

Gas will always try to even out the pressure. For example, if a empty canister is connected to a pipe pressurized at 4500kpa, the canister will also only be pressurized to 4500kpa. If a canister pressurized at 9000kpa is connected to the same pipe, gas will flow out of the canister until a even pressure is acquired.

If pressurized pipes get unwrenched they will dump all of their contents into the surrounding atmosphere and will, depending on the pressure level, violently blow the wrench user away. You will know if you are unwrenching a pressurized pipe if you get the message stating "A gush of air blows in your face... Maybe you should reconsider?" It is good practice to always use your gas analyzer on every pipe before unwrenching to ensure it is depressurized.

All pipes can be unwrenched to disconnect them from others. By using a welder on a unwrenched pipe segment you can deconstruct it into steel.

A broken or unconnected segment of pipe WILL NOT allow gas to pass through. Do not worry about all your gas escaping out of a broken or unconnected pipe segment.

Most pumps, mixers, and filters do not require power to function. Only air vents and scrubbers require power. You can shift-click on a segment to examine it to see if it is powered.

== Pipes ==
Allows gas to flow freely. Comes in four shapes. Straight, Elbow, 3-way-juntion, 4-way-junction.
{| class="wikitable"
!Image
!Name
!Description
|-
|[[File:Pipe_straight.png]]
|gas pipe straight
|A straight segment of pipe.
|-
|[[File:Pipe_elbow.png]]
|gas pipe bend
|A elbow segment of pipe.
|-
|[[File:Pipe_3_way.png]]
|gas pipe T junction
|A three way junction segment of pipe.
|-
|[[File:Pipe_4_way.png]]
|gas pipe fourway
|A four way junction segment of pipe.
|}

== Atmospheric Devices ==
{| class="wikitable"
!Image
!Name
!Description
|-
|[[File:Gas_pump.png]]
|Gas Pump
|Pumps gas in a specific direction. Has a maximum throughput of 4500 kPa (4.5 Mpa), clogs at 4500 kPa. Loses efficiency as the volume of gas rises. Can be turned on/off to allow/disallow gas flow. Requires power.
|-
|[[File:Volumetric_gas_pump.png]]
|Volumetric Gas Pump
|Pumps gas based on the mole amount instead of pressure. Has a maximum throughput of 200 L/s, clogs at 9000 kPa (9 Mpa). best used when dealing with extremely high pressure. Requires power.
|-
|[[File:Manual_valve_closed.png]]
|Manual Valve
|Allows gas to flow to and from whatever pipes it's connected to. Can be opened (green light) or closed (red light). Doesn't require power.
|-
|[[File:Passive_gate.png]]
|Passive Gate
|An air valve that's one-way only. The red circle is the inlet part. Does not require power.
|-
|[[File:Gas_Mixer.png]]
|Gas Mixer
|Allows you to combine the gas flow of two pipes into one. Has a maximum throughput of 4500 kPa, clogs at 4500 kPa. Allows you to set the percentage of throughput of both inputs. The primary port is parallel with the output while the side port is perpendicular. If one input is missing, it will not allow gas flow.
|-
|[[File:Gas_Filter.png]]
|Gas Filter
|Filters out a selected gas into another pipeline. Has a maximum throughput of 1000 L/s, clogs at 4500 kPa. Filtered gas will exit out of the perpendicular outlet while all other gases continue to flow down the parallel outlet. The filter outlet will not allow gas flow if no gas is selected or if no pipe is connected to the filter outlet.
|-
|[[File:Air_Sensor.png]]
|Air Sensor
|Scans the atmosphere of the tile it's on, shows the information on an air alarm.
|-
|[[File:Air_alarm.png]]
|Air Alarm
|Shows information of the atmosphere in the surrounding area. Allows you to control all the air vents and scrubbers it's connected to. Requires power.
|-
|[[File:Air_vent.png]]
|Gas Vent
|Used to move gas into the surrounding atmosphere. Can store 4500 kpa but only allows 101.3 kPa to flow out of it. If external pressure is higher than the limit, no gas will flow out of the vent. If external pressure drops too much, the vent will go into under-pressure lockout (shown by the vent having yellow lights instead of blue lights) and no gas will flow out of it. You can right-click on a vent and unlock it from under-pressure lockout after you fix the area. Requires power
|-
|[[File:Duel-port_vent.png]]
|Dual-port Gas Vent
|Exactly the same as a normal gas vent, but has two input options instead of one. Requires power.
|-
|[[File:Passive_vent.png]]
|Passive Vent
|Allows any pressure and gas to flow in and out of it. Doesn't require power.
|-
|[[File:Air_Scrubber.png]]
|Air Scrubber
|Slowly siphons selected gases out of the surrounding atmosphere. You can change what gases it siphons via an air alarm. Must be connected to an outlet port to function. Glows blue when working and glows red when in panic mode. Requires power.
|-
|[[File:Air_injector.png]]
|Air Injector
|inject air into the surrounding atmosphere. Does not allow backflow. Maximum throughput is 9000 kPa, clogs at 9000 kPa. Requires power.
|-
|[[File:Pneumatic_valve.png]]
|Pneumatic Valve
|Has three ports: Control, inlet, an outlit. Allows gas flow like a manual valve, but only if the pressure at the control port is high enough. To turn it on, the control port must be at least 1 atm higher than the lowest pressure connected to the valve. I.E the lesser of the inlet and outlit pressure.
|-
|[[File:Canister.png]]
|Canister
|Used to hold and transport gas without the use of pipes. Use a wrench to connect a canister to a connector port. You can put air tanks into canister to fill them with whatever gas is in the canister.
|-
|[[File:Connector_Port.png]]
|Connector Port
|Used to transfer gas from pipes into canisters. Gas will flow into the canister until pressure evens out between the connector port and the canister. Use gas pumps to force more gas in/out of canisters.
|-
|[[File:Gas_miner.png]]
|Gas Miner
|Creates new gases from nothing, used to make sure stations have an infinite amount of a specific gas. Stations usually only come with an oxygen and nitrogen miner. Found in gas chambers in atmos.
|-
|[[File:Gas_recycler.png]]
|Gas Recycler
|Used to recycle carbon dioxide and nitrious oxide into oxygen and nitrogen, respectively. Requires power, 3000 kPa and the gas to be 300°C to work.
|-
|[[File:Condenser.png]]
|Gas Condenser
|Condenses an gas into liquid.
|-
|[[file:Radiators.png]]
|Radiator
|Used to transfer the temperature of a room to the gas in pipes.
|-
|[[File:Freezer.png]][[File:HeaterOff.png]]
|Freezer/heater
|Connected to pipe networks to heat up the gas inside. Has hellfire variants.
|-
|[[File:Portable_Scrubber.png]]
|Portable Scrubber
|Works just like an air scrubber, but you can pull it around! Anchor it down to have it filter harmful gases out of the air.
|-
|[[file:Space_Heater.png]]
|Space Heater
|A portable heater used to regulate temperatures in certain rooms. Anchor it down and click the interact button to make it work.
|}

=== Design Examples ===
'''Pressure Relief Valve'''

[[File:Pressure_relief_system.png]]

This pressure relief system drains the air inside to space if the pressure exceeds 1 atm, which can be used to guard against accidental station overpressure events. A passive vent inside (1) is connected to the control and the inlet. Another passive vent in space (2) is connected to the outlet. Since the outlet pressure is 0 kPa, then the pneumatic valve will only be on if the inside pressure exceeds 1 atm. When that happens, air from inside is transferred into space until the inside pressure is equal to 1 atm.

=== Turning Completeness ===
Pneumatic valves make [https://github.com/space-wizards/space-station-14/pull/10520 atmos turing-complete].

=Gases=
{{Stub}}
==Introduction==
The gases are the most important part of Atmospherics. There are currently 9 gases in the game, each of them has its own Specific Heat Capacity and Molar Mass. Most of them can be created using Gas Miners or created in combustion reactions.

==Gases==

{| class="wikitable sortable"
|+ Gases in SS14
|-
! Gas !! Description !! Specific Heat Capacity !! Molar Mass (g/mol)
|-
| Oxygen [[File:Oxygen gas.png]] || Colorless, reactive gas that humans need to breathe to stay alive. Key oxidizing agent in most combustion reactions. || 20 || 32
|-
| Nitrogen [[File:Nitrogen gas.png]] || Colorless, odorless, inert gas. Somehow, slimes and voxes breathe this. || 30 || 28
|-
| Carbon Dioxide [[File:Carbon dioxide.png]]|| Colorless, odorless, relatively inert gas. Exhaled by creatures that breathe oxygen. Toxic in high enough quantities. The reason why atmospheric technicians are employed. || 30 || 44
|-
| Plasma [[File:Plasma.png]] || Purple, putrid, highly-combustible, and toxic gas. Combusts in the presence of oxygen, but will not ignite on its own. Unfortunately, it is also vitally important to industrial and scientific activities aboard Nanotrasen stations. || 200 || 120
|-
| Tritium [[File:Tritium.png]] || Green, highly-combustible, and radioactive. Combusts in the presence of oxygen. It is formed by the combustion of Oxygen and Plasma. To form Tritium, there must be 96 times more Oxygen than Plasma during the reaction. If there is too much Plasma, the reaction will produce Carbon Dioxide instead. || 10 || 6
|-
| Water Vapor [[File:Water_Vapor.png]] || Water in gaseous form. Due to the unique environment of space, does not condense into liquid water. Harmful to slime people. || 40 || 18
|-
| Miasma [[File:Miasma.png]] || Purple, foul-smelling gas. Breeds disease, toxic, and harmful in sufficiently large concentrations. A by-product of nasty biological processes, including rotting bodies. || 20 || 44
|-
| Nitrous Oxide [[File:Nitrious_Oxide.png]] || Colorless, Otherwise known as "laughing" or "sleepy" gas, it acts as a sedative to non-slimes and is toxic in very high concentrations. Unfortunately, this stuff is exhaled by slimes. Formed from Frezon and Nitrogen || 40 || 44
|-
| Frezon [[File:Frezon.png]] || Blue-greenish gas. Used as an industrial coolant. Used recreationally by some for its euphoric effects, before their lungs freeze out. It has a high value and is made by mixing cold Tritium and Oxygen. || 600 || 50
|}

{{Guides Menu}}

Atmospheric Technician

2025-06-21T17:42:21Z

HTMLSystem: Renamed atmos science to basics of atmos

{{Job_Header
|department=ENGINEERING
|maincolor=854100
|secondarycolor=a75200
|image=Atmospheric Technician.png
|title=Atmospheric Technician
|difficulty=Hard to Very Hard
|requirements=10 hours in [[Station Engineer|Engineering]]
|access=Maintenance, Engineering, External, Atmospherics
|extendedaccess=None
|supervisors=[[Chief Engineer]]
|subordinates=None
|duties=Set up the TEG. Restore breathable atmosphere to depressurized areas. Ensure the station's air remains at liveable conditions. Get bored and create tritium. Create Frezon to sell for massive profits.
|guides=[[Power]], [[Basics of Atmos]], [[Pipes and vents]], [[Gases]], [[Setting up the mix chamber]]
|aliases=Life Support Technician, Plasma Scientist, "Atmos", "Atmosian"}}
As an atmospheric technician, your primary job is to maintain a safe and breathable atmosphere inside the station. As a member of the engineering department, you may also be expected to double as a [[Station Engineer]] <s>if they don't know what they're doing</s> in exceptional circumstances.

The primary threats to a safe and breathable atmosphere inside the station are:

* Air escaping into space due to intentional or unintentional removal of walls or floor tiles (''spacing'')
* Buildup of unpleasant or outright hazardous [[#Gases|gases]] such as ammonia or plasma

Atmospheric technicians are essential to keeping the station alive and breathing, and consequently are ineligible to be [[Traitor]].

==Quick-Start==
# Grab [[#Equipment|equipment]] from your atmospheric technician locker. You should grab at least a hardsuit or fire suit and helmet, a gas mask and gas tank, a gas analyzer, and a holofan projector. Consider grabbing inflatable walls, inflatable doors, steel sheets, and metal rods to be ready to fix spacing.
# Find the distro pipe and inspect its pressure and temperature using your [[#Equipment|gas analyzer]]. If the pressure is zero and shows no sign of rising, take corrective action.
# (''optional'') Set filters to recover gases from the waste pipe. Because [[Pipes_and_vents#Gas_Miner|gas miners]] are available on most stations, this step is not very important. And, unless [[Pipes_and_vents#Air_Scrubber|scrubbers]] are set to siphoning, there will only be waste gases in the waste pipe.
# Deliver [[#Equipment|portable scrubbers]] to locations that expect miasma build up. This is usually the [[Medical#Cloning_and_Morgue|cloning room or morgue in the medical bay]].
# Monitor the station's radio or patrol the station yourself for spacing or other atmospheric issues. Fix issues if they arise.
# Make sure that [[Antagonist|suspicious people]] are not sabotaging your department.

==Equipment==
Like your fellow [[Station Engineer|Station Engineers]], you start with a full belt of tools. Atmospheric technicians may also have access to:

{| class="wikitable"
|+ Atmospheric Equipment
|-
! Picture !! Name !! Description
|-
| [[File:OxygenTank.png|64px]] || Portable Oxygen Tank || Small enough to carry around. Hook this up to a mask, and you can have a portable air supply to breathe while in space or fixing leaks. People will probably ask you for these.
|-
| [[File:Gas Analyzer.png|64px]] || Gas Analyzer || Use this to analyze the composition of gases in the air around you, or to measure the temperature and pressure of gases inside pipes.
|-
| [[File:Portable Scrubber.png|64px]] || Portable Scrubber || Can be wrenched down to scrub waste gases to an internal tank. Useful for quickly containing gas leaks. Must be emptied once full.
|-
| [[File:Holofan Projector.png|64px]] || Holofan Projector || [[File:Holofan.png|thumb|right|A holofan projection]] Creates a holographic firelock (''holofan'') that blocks gas flow but allows objects to move through them. Holofans last for three minutes before despawning. Extremely useful when repairing a hull breach, since they will safely block the flow of station atmosphere while still giving access to move around freely to work. Stores a total of six charges before the internal [[Power cell]] runs out of power.
|}

==Atmosia==
''Main article: [[Atmospheric_Science|Atmospheric Science]]''

Atmospherics, sometimes referred to as Atmosia, is where most of the station's air handling machinery is located. Each station has a different atmospherics layout. While seasoned atmospheric technicians may have atmospheric layouts memorized, frequent <s>useless station remodeling</s> station engineering changes mean that it is more important to be able to quickly understand the layout of the station that you're currently working on.

==Gases==
''Main article: [[Gases]]''

==Pipes and Machinery==
''Main article: [[Pipes and vents]]''

==Pressure and moles==
[[File:Gas analyzer.png]]

All gas can be quantified by its pressure, mole amount, and temperature. These three variables are closely related and directly affect one another. If you add more gas(# of moles) to a given area, the pressure will increase. Take the same amount of moles and lower the volume by using a smaller room and the pressure will be even larger. If you then heat up the gas, the pressure will be even larger still. The opposite is also true, less gas means lower pressure. cooling down gas will also lower the pressure. Volume, or size of the room, also plays a role in pressure. A larger area will require more gas while a smaller area will require less gas to reach the same pressure. using this knowledge we can see why space has a low pressure because the area and temperature are so low.

Moles are a way of measuring how much gas is present in a given area. A higher pressure does not always mean more of a gas in the given area. If you want to physically fit a larger amount of a gas in a specific area, you will need to cool the gas down to lower the temperature, thus lowering the pressure allowing more moles to fit inside the given area.

If you open a canister will 100 moles of air into a large hallway, you will hardly notice a difference in pressure. However, if you open the same tank in a small room the pressure difference will be greater.

The standard livable air requirements are about 20 moles of oxygen and 80 moles of nitrogen at a pressure of 101kpa and temperature of 20° Celsius. If you have less than 20 moles of oxygen present, your character will begin to gasp and take oxygen deprivation damage. If the pressure is any lower or higher than 101kpa, your character will begin to take brute damage in relation to the depressurization or overpressurization levels. If the temperature is much lower or higher than 20°C, you risk your character taking burn damage from the extreme cold or heat.

Generally speaking:
*More gas(# of moles) = more pressure.
*Less gas(# of moles) = less pressure.
*Hot gas = more pressure.
*Cold gas = less pressure.
*Large hallway = more moles/higher temperatures needed to notice pressure change.
*Small hallway = less moles/higher temperatures needed to notice pressure change.

==Air Alarms==
Air Alarms can be found all over the station in form of panels. They connect and manage active vents, scrubbers, air sensors and firelocks together. They have 3 possible states: Normal, Warning and Alarm. Warning indicates possible build-up of dangerous gases or other issues with the atmosphere that aren't directly lethal. The Alarm state it will close all firelocks connected to that panel, indicating a possibly lethal threat, like a spacing.

At the bottom of the panel there is a mode selector. You can select between:
* Filtering - Normal filtering, removes all gases except Nitrogen and Oxygen.
* Filtering (wide) - Enables WideNet which also filters tiles adjacent to a scrubber.
* Fill - Turns off the scrubbers and fills the room through the vents.
* Panic - Sucks out all gases and turns off the vents.

You can view the atmosphere composition on the tile a sensor is located by using the Sensors tab, which gives you detailed insights about the gases, pressure and temperature.

==Dealing with gas leaks==
Gas leaks are a random even that occurs on the station. They can be usually quickly located by reports on the radio and firelocks going off. Most gases aren't directly harmful and are filtered off by the scrubbers network, but Tritium, Plasma or Frezon need to be quickly removed using Portable Scrubbers, usually found in the Atmos area of the Engineering department.

The most effective way of containing extreme pressures and temperatures (like these caused by plasma fires) is spacing the room, which can be done using an RCD or a fire axe.

==Space wind==
Explosive decompression, or ''space wind,'' is caused when a sudden low pressure or depressurization zone occurs and all the atmosphere flows from high pressure to low pressure. Space wind often happens due to a sudden hull breach or when the clown opens the external airlock. All personnel and lose objects in the area will be flung toward the low pressure area as if a gust of wind blows you towards the breach site, thus the name 'Space Wind' is dubbed.

Space wind is very deadly to any crew member not wearing hardsuits with internals. Space wind will often suck you far away from safety and toward the breach site. The damage you take from slamming into objects (and objects slamming into you) along with depressurization, lack of oxygen, and freezing temperatures will often quickly kill any unsuspecting crewmember who gets caught.

==Useful trivia and tricks==
*Always be prepared to fix a breach. Carry your Atmospherics hardsuit or firesuit with you so you can survive long enough to fix any breach at a moments notice.
*The Atmospherics firesuit is space proof and functions like a hardsuit. Just make sure you wear the helmet with it or else it wont give you any protection.
*The standard air mix is 21% oxygen and 79% nitrogen @ 101.325 kPa at 293.15K (20°C).
*A quick and dirty way to vent high pressure or unwanted gases is to expose the area to open space. Breach a wall or open an airlock to quickly suck out all the atmosphere. Just be sure you have the area sealed off and no crewmembers get caught in the depressurization zone!
*Overpressurization can be just as harmful as depressurization!
*A pressurized pipe will violently decompress if unwrenched!
*If you want to check the pressure and temperature of a pipe, hold your gas analyzer in hand and left-click on the pipe.
*Make sure that the distro loop never connects to anything else like the mix or waste loop. unless you want to flood the station with superheated plasma and risk getting an angry admin message.

{{Jobs Menu}}
[[Category:Jobs]]

Template:Guides Menu

2025-06-21T17:41:48Z

HTMLSystem: Renamed atmos science to basics of atmos

{| class="wikitable mw-collapsible" width=100% style="font-size: 95%"
|-
! colspan=2 style="font-size: 95%; border: 2px solid #000000" | [[Guides]] Library
|-
| style="width:10%; text-align:right; background: #63467d1A; border: 2px solid #000000" | '''The Basics'''
| style="border: 2px solid #000000" | [[Getting Started]] · [https://delta-v.org/rules.html Server Rules] · [[Interactions]] · [[Roleplay]] · [[Game Modes]] · [[Combat]] · [[Maps]]
|-
| style="text-align:right; background: #0C2C47; border: 2px solid #000000" | '''Command'''
| style="border: 2px solid #000000" | [[Standard Operating Procedure]] · [[Alert Procedure]] · [[Space Law]] · [[Company Policy]] · [[Shipyard]] · [[High-Risk Items]]
|-
| style="text-align:right; background: #480000; border: 2px solid #000000" | '''Security'''
| style="border: 2px solid #000000" | [[Security Officer]] · [[Alert Procedure]] · [[Standard Operating Procedure]] · [[Space Law]] · [[Company Policy]] · [[Forensics]]
|-
| style="text-align:right; background: #854100; border: 2px solid #000000" | '''Engineering'''
| style="border: 2px solid #000000" | [[Construction]] · [[Power]] · [[Basics of Atmos]] · [[Hacking]] · [[Practical Atmospherics]]
|-
| style="text-align:right; background: #4c1a4f; border: 2px solid #000000" | '''Epistemics'''
| style="border: 2px solid #000000" | [[Research and Development]] · [[Xenoarcheology]] · [[Anomalous Research]] · [[Reverse Engineering]] · [[Glimmer]] · [[Psionics]] · [[Golemancy]] · [[The Oracle]] · [[Robotics]]
|-
| style="text-align:right; background: #244559; border: 2px solid #000000" | '''Medical'''
| style="border: 2px solid #000000" | [[Medical]] · [[Chemistry]] · [[Cryogenic Pods]] · [[Surgery]]
|-
|-
| style="text-align:right; background: #43331a; border: 2px solid #000000" | '''Logistics'''
| style="border: 2px solid #000000" | [[Shuttle Piloting]] · [[Supply Crates]] · [[Lavaland]] · [[Salvaging and Mining]] · [[Shuttle Construction]]
|-
| style="text-align:right; background: #265600; border: 2px solid #000000" | '''Service'''
| style="border: 2px solid #000000" | [[Cooking]] · [[Drinks]] · [[Hydroponics]]
|-
| style="text-align:right; background: #121212; border: 2px solid #000000" | '''Antagonists'''
| style="border: 2px solid #000000" | [[Guide to Traitor]] · [[Syndicate Items]] · [[High-Risk Items]] · [[Cosmic Cultist]]
|-
! style="text-align:right; border: 2px solid #000000" | Miscellaneous
| style="border: 2px solid #000000" | [[Fauna]] · [[Playable Species]] · [[Radio]] · [[Singularity]] · [[Slang|Terminology]] · [[Weapons]] · [[Paperwork]] · [[Traits]] · [[Admin commands]] · [[Administrators]] · [[Unofficial Lore]]
|-
! style="text-align:right; background: #0f331c; border: 2px solid #000000" | Contribution
| style="border: 2px solid #000000" | [https://github.com/DeltaV-Station/Delta-V/blob/master/CONTRIBUTING.md Development] · [[Mapping]] · [[Spriting]] · [[Wiki Contribution]] · [[Wikicode]]

|}<noinclude>

== Usage ==
Navigational template for the [[:Category:Guides|Guides]] category. Includes an automatic categorization of the page into said category. To use it, write:

<pre>
{{Guides Menu}}
</pre>

[[Category:Templates]]
</noinclude>
<includeonly>[[Category:Guides]]</includeonly>

Atmospheric Science

2025-06-21T17:40:57Z

HTMLSystem: HTMLSystem moved page Atmospheric Science to Basics of Atmos: Renamed to better fit what the page is about

#REDIRECT [[Basics of Atmos]]

Basics of Atmos

2025-06-21T17:40:56Z

HTMLSystem: HTMLSystem moved page Atmospheric Science to Basics of Atmos: Renamed to better fit what the page is about

{{Rewrite|todo=Details, details, details. Someone from #atmos-thread, please!}}

Atmospheric Science refers to the observation and processing of gases in enclosed spaces.

= The Basics of Atmos =
Atmos seems complicated on it's surface, but it's easier to understand once you learn the terms and how gases work.

== Pressure ==

Pressure is measured in kPa (Kilopascals). A safe amount of kPa is 80-140 kPa. If kPa falls under or over that amount, most creatures will start to take barotrauma damage. Most atmos devices are set to 101.3 kPa.
Pressure rises as temperature rises, and lowers as temperature lowers.
Gases will always try to flow from higher pressure to lower pressure to create an equilibrium. It's important to be mindful of the pressure in a room or pipe before you open a door or unanchor a pipe.
Most atmospheric devices clog around 4500 kPa, some only clog at 9000 kPa, and some don't clog at all.

== Temperature ==

Temperature is measured in Celsius and Kelvin. A safe amount of temperature varies from species to species, the temperature a room should be is around 20°C (293.15K) as that's safe for all species.
Heat and cold will always try to spread to create an equilibrium. Be mindful before you open a door or unanchor a pipe. Remember that space is naturally cold, so any spaced rooms will be very cold after you patch them up.

== Mols ==

The exact volume of gases is measured in mols. It is important to pay attention to the exact mols of gases, such as dealing with the TEG or toxic gases that have the potential to poison people.

==Toxins==
''Main article: [[Gases]]''

There are many toxic gases some species (like Harpies) are hypersensitive to toxins, some species (like Voxes) are poisoned by Oxygen. It's important to not leave them unattended as not many people know what that bright green gas is on the other side of the door, and will walk in there without knowing that they will be dead in 10 secs. it's important that you use your equipment given to you to keep people out of the affected area and siphon the gases out as safely and fast as possible.

= Pipes, Vents and Other Atmospheric Devices =

== General Information ==
All gases can flow through the various pipes found in the game. Gas will always attempt to flow from higher pressure to lower pressure. If a gas is not in a pipe, canister, or tank, it will be in the atmosphere and will interact with other objects.

Gas will always try to even out the pressure. For example, if a empty canister is connected to a pipe pressurized at 4500kpa, the canister will also only be pressurized to 4500kpa. If a canister pressurized at 9000kpa is connected to the same pipe, gas will flow out of the canister until a even pressure is acquired.

If pressurized pipes get unwrenched they will dump all of their contents into the surrounding atmosphere and will, depending on the pressure level, violently blow the wrench user away. You will know if you are unwrenching a pressurized pipe if you get the message stating "A gush of air blows in your face... Maybe you should reconsider?" It is good practice to always use your gas analyzer on every pipe before unwrenching to ensure it is depressurized.

All pipes can be unwrenched to disconnect them from others. By using a welder on a unwrenched pipe segment you can deconstruct it into steel.

A broken or unconnected segment of pipe WILL NOT allow gas to pass through. Do not worry about all your gas escaping out of a broken or unconnected pipe segment.

Most pumps, mixers, and filters do not require power to function. Only air vents and scrubbers require power. You can shift-click on a segment to examine it to see if it is powered.

== Pipes ==
Allows gas to flow freely. Comes in four shapes. Straight, Elbow, 3-way-juntion, 4-way-junction.
{| class="wikitable"
!Image
!Name
!Description
|-
|[[File:Pipe_straight.png]]
|gas pipe straight
|A straight segment of pipe.
|-
|[[File:Pipe_elbow.png]]
|gas pipe bend
|A elbow segment of pipe.
|-
|[[File:Pipe_3_way.png]]
|gas pipe T junction
|A three way junction segment of pipe.
|-
|[[File:Pipe_4_way.png]]
|gas pipe fourway
|A four way junction segment of pipe.
|}

== Atmospheric Devices ==
{| class="wikitable"
!Image
!Name
!Description
|-
|[[File:Gas_pump.png]]
|Gas Pump
|Pumps gas in a specific direction. Has a maximum throughput of 4500 kPa (4.5 Mpa), clogs at 4500 kPa. Loses efficiency as the volume of gas rises. Can be turned on/off to allow/disallow gas flow. Requires power.
|-
|[[File:Volumetric_gas_pump.png]]
|Volumetric Gas Pump
|Pumps gas based on the mole amount instead of pressure. Has a maximum throughput of 200 L/s, clogs at 9000 kPa (9 Mpa). best used when dealing with extremely high pressure. Requires power.
|-
|[[File:Manual_valve_closed.png]]
|Manual Valve
|Allows gas to flow to and from whatever pipes it's connected to. Can be opened (green light) or closed (red light). Doesn't require power.
|-
|[[File:Passive_gate.png]]
|Passive Gate
|An air valve that's one-way only. The red circle is the inlet part. Does not require power.
|-
|[[File:Gas_Mixer.png]]
|Gas Mixer
|Allows you to combine the gas flow of two pipes into one. Has a maximum throughput of 4500 kPa, clogs at 4500 kPa. Allows you to set the percentage of throughput of both inputs. The primary port is parallel with the output while the side port is perpendicular. If one input is missing, it will not allow gas flow.
|-
|[[File:Gas_Filter.png]]
|Gas Filter
|Filters out a selected gas into another pipeline. Has a maximum throughput of 1000 L/s, clogs at 4500 kPa. Filtered gas will exit out of the perpendicular outlet while all other gases continue to flow down the parallel outlet. The filter outlet will not allow gas flow if no gas is selected or if no pipe is connected to the filter outlet.
|-
|[[File:Air_Sensor.png]]
|Air Sensor
|Scans the atmosphere of the tile it's on, shows the information on an air alarm.
|-
|[[File:Air_alarm.png]]
|Air Alarm
|Shows information of the atmosphere in the surrounding area. Allows you to control all the air vents and scrubbers it's connected to. Requires power.
|-
|[[File:Air_vent.png]]
|Gas Vent
|Used to move gas into the surrounding atmosphere. Can store 4500 kpa but only allows 101.3 kPa to flow out of it. If external pressure is higher than the limit, no gas will flow out of the vent. If external pressure drops too much, the vent will go into under-pressure lockout (shown by the vent having yellow lights instead of blue lights) and no gas will flow out of it. You can right-click on a vent and unlock it from under-pressure lockout after you fix the area. Requires power
|-
|[[File:Duel-port_vent.png]]
|Dual-port Gas Vent
|Exactly the same as a normal gas vent, but has two input options instead of one. Requires power.
|-
|[[File:Passive_vent.png]]
|Passive Vent
|Allows any pressure and gas to flow in and out of it. Doesn't require power.
|-
|[[File:Air_Scrubber.png]]
|Air Scrubber
|Slowly siphons selected gases out of the surrounding atmosphere. You can change what gases it siphons via an air alarm. Must be connected to an outlet port to function. Glows blue when working and glows red when in panic mode. Requires power.
|-
|[[File:Air_injector.png]]
|Air Injector
|inject air into the surrounding atmosphere. Does not allow backflow. Maximum throughput is 9000 kPa, clogs at 9000 kPa. Requires power.
|-
|[[File:Pneumatic_valve.png]]
|Pneumatic Valve
|Has three ports: Control, inlet, an outlit. Allows gas flow like a manual valve, but only if the pressure at the control port is high enough. To turn it on, the control port must be at least 1 atm higher than the lowest pressure connected to the valve. I.E the lesser of the inlet and outlit pressure.
|-
|[[File:Canister.png]]
|Canister
|Used to hold and transport gas without the use of pipes. Use a wrench to connect a canister to a connector port. You can put air tanks into canister to fill them with whatever gas is in the canister.
|-
|[[File:Connector_Port.png]]
|Connector Port
|Used to transfer gas from pipes into canisters. Gas will flow into the canister until pressure evens out between the connector port and the canister. Use gas pumps to force more gas in/out of canisters.
|-
|[[File:Gas_miner.png]]
|Gas Miner
|Creates new gases from nothing, used to make sure stations have an infinite amount of a specific gas. Stations usually only come with an oxygen and nitrogen miner. Found in gas chambers in atmos.
|-
|[[File:Gas_recycler.png]]
|Gas Recycler
|Used to recycle carbon dioxide and nitrious oxide into oxygen and nitrogen, respectively. Requires power, 3000 kPa and the gas to be 300°C to work.
|-
|[[File:Condenser.png]]
|Gas Condenser
|Condenses an gas into liquid.
|-
|[[file:Radiators.png]]
|Radiator
|Used to transfer the temperature of a room to the gas in pipes.
|-
|[[File:Freezer.png]][[File:HeaterOff.png]]
|Freezer/heater
|Connected to pipe networks to heat up the gas inside. Has hellfire variants.
|-
|[[File:Portable_Scrubber.png]]
|Portable Scrubber
|Works just like an air scrubber, but you can pull it around! Anchor it down to have it filter harmful gases out of the air.
|-
|[[file:Space_Heater.png]]
|Space Heater
|A portable heater used to regulate temperatures in certain rooms. Anchor it down and click the interact button to make it work.
|}

=== Design Examples ===
'''Pressure Relief Valve'''

[[File:Pressure_relief_system.png]]

This pressure relief system drains the air inside to space if the pressure exceeds 1 atm, which can be used to guard against accidental station overpressure events. A passive vent inside (1) is connected to the control and the inlet. Another passive vent in space (2) is connected to the outlet. Since the outlet pressure is 0 kPa, then the pneumatic valve will only be on if the inside pressure exceeds 1 atm. When that happens, air from inside is transferred into space until the inside pressure is equal to 1 atm.

=== Turning Completeness ===
Pneumatic valves make [https://github.com/space-wizards/space-station-14/pull/10520 atmos turing-complete].

=Gases=
{{Stub}}
==Introduction==
The gases are the most important part of Atmospherics. There are currently 9 gases in the game, each of them has its own Specific Heat Capacity and Molar Mass. Most of them can be created using Gas Miners or created in combustion reactions.

==Gases==

{| class="wikitable sortable"
|+ Gases in SS14
|-
! Gas !! Description !! Specific Heat Capacity !! Molar Mass (g/mol)
|-
| Oxygen [[File:Oxygen gas.png]] || Colorless, reactive gas that humans need to breathe to stay alive. Key oxidizing agent in most combustion reactions. || 20 || 32
|-
| Nitrogen [[File:Nitrogen gas.png]] || Colorless, odorless, inert gas. Somehow, slimes and voxes breathe this. || 30 || 28
|-
| Carbon Dioxide [[File:Carbon dioxide.png]]|| Colorless, odorless, relatively inert gas. Exhaled by creatures that breathe oxygen. Toxic in high enough quantities. The reason why atmospheric technicians are employed. || 30 || 44
|-
| Plasma [[File:Plasma.png]] || Purple, putrid, highly-combustible, and toxic gas. Combusts in the presence of oxygen, but will not ignite on its own. Unfortunately, it is also vitally important to industrial and scientific activities aboard Nanotrasen stations. || 200 || 120
|-
| Tritium [[File:Tritium.png]] || Green, highly-combustible, and radioactive. Combusts in the presence of oxygen. It is formed by the combustion of Oxygen and Plasma. To form Tritium, there must be 96 times more Oxygen than Plasma during the reaction. If there is too much Plasma, the reaction will produce Carbon Dioxide instead. || 10 || 6
|-
| Water Vapor [[File:Water_Vapor.png]] || Water in gaseous form. Due to the unique environment of space, does not condense into liquid water. Harmful to slime people. || 40 || 18
|-
| Miasma [[File:Miasma.png]] || Purple, foul-smelling gas. Breeds disease, toxic, and harmful in sufficiently large concentrations. A by-product of nasty biological processes, including rotting bodies. || 20 || 44
|-
| Nitrous Oxide [[File:Nitrious_Oxide.png]] || Colorless, Otherwise known as "laughing" or "sleepy" gas, it acts as a sedative to non-slimes and is toxic in very high concentrations. Unfortunately, this stuff is exhaled by slimes. Formed from Frezon and Nitrogen || 40 || 44
|-
| Frezon [[File:Frezon.png]] || Blue-greenish gas. Used as an industrial coolant. Used recreationally by some for its euphoric effects, before their lungs freeze out. It has a high value and is made by mixing cold Tritium and Oxygen. || 600 || 50
|}

{{Guides Menu}}

Template:Jobs Menu

2025-06-21T17:34:58Z

HTMLSystem: Removed Admin assistant

{| class="wikitable" width=100% style="font-size: 95%"
|-
! colspan=2 style="font-size: 95%; border: 2px solid #000000" | [[Jobs|Roles on DeltaV]]
|-
| style="width:10%; text-align:right; background: #0C2C47; border: 2px solid #000000" | '''Command'''
| style="border: 2px solid #000000" | '''[[Captain]]''' · [[Head of Personnel]] · [[Head of Security]] · [[Chief Engineer]] · [[Mystagogue]] · [[Chief Medical Officer]] · [[Logistics Officer]] · [[Chief Justice]]
|-
| style="text-align:right; background: #6b2833; border: 2px solid #000000" | '''Justice Department'''
| style="border: 2px solid #000000" | '''[[Chief Justice]]''' · [[Clerk]] · [[Prosecutor]] · [[Lawyer]]
|-
| style="text-align:right; background: #480000; border: 2px solid #000000" | '''Security'''
| style="border: 2px solid #000000" | '''[[Head of Security]]''' · [[Warden]] · [[Security Officer]] · [[Prison Guard]] · [[Corpsman]] · [[Detective]] · [[Security Cadet]]
|-
| style="text-align:right; background: #854100; border: 2px solid #000000" | '''Engineering'''
| style="border: 2px solid #000000" | '''[[Chief Engineer]]''' · [[Atmospheric Technician]] · [[Station Engineer]] · [[Technical Assistant]]
|-
| style="text-align:right; background: #4c1a4f; border: 2px solid #000000" | '''Epistemics'''
| style="border: 2px solid #000000" | '''[[Mystagogue]]''' · [[Psionic Mantis]] · [[Chaplain]] · [[Roboticist]] · [[Scientist]] · [[Research Assistant]]
|-
| style="text-align:right; background: #244559; border: 2px solid #000000" | '''Medical'''
| style="border: 2px solid #000000" | '''[[Chief Medical Officer]]''' · [[Medical Doctor]] · [[Paramedic]] · [[Chemist]] · [[Surgeon]] · [[Psychologist]] · [[Medical Intern]]
|-
| style="text-align:right; background: #43331a; border: 2px solid #000000" | '''Logistics'''
| style="border: 2px solid #000000" | '''[[Logistics Officer]]''' · [[Cargo Technician]] · [[Salvage Specialist]] · [[Courier]] · [[Cargo Assistant]]
|-
| style="text-align:right; background: #265600; border: 2px solid #000000" | '''Service'''
| style="border: 2px solid #000000" | '''[[Head of Personnel]]''' · [[Janitor]] · [[Bartender]] · [[Botanist]] · [[Chef]] · [[Service Worker]] · [[Boxer]] · [[Clown]] · [[Martial Artist]] · [[Mime]] · [[Musician]] · [[Reporter]] · [[Passenger]] · [[Zookeeper]] · [[Librarian]] · [[Gladiator]] · [[Prisoner]]
|-
| style="text-align:right; background: #3D434B; border: 2px solid #000000" | '''Sillicon'''
| style="border: 2px solid #000000" | [[Cyborg]] · [[Personal AI]]
|-
| style="text-align:right; background: #121212; border: 2px solid #000000" | '''Antagonists'''
| style="border: 2px solid #000000" | [[Traitor]] · [[Nuclear Operative]] · [[Space Ninja]] · [[Thief]] · [[Paradox Anomaly]] · [[Revenant]] · [[Space Dragon]] · [[Listening Post Operative]] · [[Zombie]] · [[Cosmic Cultist]]
|-
|}<noinclude>

== Usage ==
Navigational template for the [[:Category:Jobs|Jobs]] category. To use it, write:

<pre>
{{Jobs Menu}}
</pre>

[[Category:Templates]]
</noinclude>

Basics of Atmos

2025-06-21T17:24:44Z

HTMLSystem: Rewrote the first few paragraphs to explain what pressure, temperature, mols, and toxins are in a concise and simple way.

{{Rewrite|todo=Details, details, details. Someone from #atmos-thread, please!}}

Atmospheric Science refers to the observation and processing of gases in enclosed spaces.

= The Basics of Atmos =
Atmos seems complicated on it's surface, but it's easier to understand once you learn the terms and how gases work.

== Pressure ==

Pressure is measured in kPa (Kilopascals). A safe amount of kPa is 80-140 kPa. If kPa falls under or over that amount, most creatures will start to take barotrauma damage. Most atmos devices are set to 101.3 kPa.
Pressure rises as temperature rises, and lowers as temperature lowers.
Gases will always try to flow from higher pressure to lower pressure to create an equilibrium. It's important to be mindful of the pressure in a room or pipe before you open a door or unanchor a pipe.
Most atmospheric devices clog around 4500 kPa, some only clog at 9000 kPa, and some don't clog at all.

== Temperature ==

Temperature is measured in Celsius and Kelvin. A safe amount of temperature varies from species to species, the temperature a room should be is around 20°C (293.15K) as that's safe for all species.
Heat and cold will always try to spread to create an equilibrium. Be mindful before you open a door or unanchor a pipe. Remember that space is naturally cold, so any spaced rooms will be very cold after you patch them up.

== Mols ==

The exact volume of gases is measured in mols. It is important to pay attention to the exact mols of gases, such as dealing with the TEG or toxic gases that have the potential to poison people.

==Toxins==
''Main article: [[Gases]]''

There are many toxic gases some species (like Harpies) are hypersensitive to toxins, some species (like Voxes) are poisoned by Oxygen. It's important to not leave them unattended as not many people know what that bright green gas is on the other side of the door, and will walk in there without knowing that they will be dead in 10 secs. it's important that you use your equipment given to you to keep people out of the affected area and siphon the gases out as safely and fast as possible.

= Pipes, Vents and Other Atmospheric Devices =

== General Information ==
All gases can flow through the various pipes found in the game. Gas will always attempt to flow from higher pressure to lower pressure. If a gas is not in a pipe, canister, or tank, it will be in the atmosphere and will interact with other objects.

Gas will always try to even out the pressure. For example, if a empty canister is connected to a pipe pressurized at 4500kpa, the canister will also only be pressurized to 4500kpa. If a canister pressurized at 9000kpa is connected to the same pipe, gas will flow out of the canister until a even pressure is acquired.

If pressurized pipes get unwrenched they will dump all of their contents into the surrounding atmosphere and will, depending on the pressure level, violently blow the wrench user away. You will know if you are unwrenching a pressurized pipe if you get the message stating "A gush of air blows in your face... Maybe you should reconsider?" It is good practice to always use your gas analyzer on every pipe before unwrenching to ensure it is depressurized.

All pipes can be unwrenched to disconnect them from others. By using a welder on a unwrenched pipe segment you can deconstruct it into steel.

A broken or unconnected segment of pipe WILL NOT allow gas to pass through. Do not worry about all your gas escaping out of a broken or unconnected pipe segment.

Most pumps, mixers, and filters do not require power to function. Only air vents and scrubbers require power. You can shift-click on a segment to examine it to see if it is powered.

== Pipes ==
Allows gas to flow freely. Comes in four shapes. Straight, Elbow, 3-way-juntion, 4-way-junction.
{| class="wikitable"
!Image
!Name
!Description
|-
|[[File:Pipe_straight.png]]
|gas pipe straight
|A straight segment of pipe.
|-
|[[File:Pipe_elbow.png]]
|gas pipe bend
|A elbow segment of pipe.
|-
|[[File:Pipe_3_way.png]]
|gas pipe T junction
|A three way junction segment of pipe.
|-
|[[File:Pipe_4_way.png]]
|gas pipe fourway
|A four way junction segment of pipe.
|}

== Atmospheric Devices ==
{| class="wikitable"
!Image
!Name
!Description
|-
|[[File:Gas_pump.png]]
|Gas Pump
|Pumps gas in a specific direction. Has a maximum throughput of 4500 kPa (4.5 Mpa), clogs at 4500 kPa. Loses efficiency as the volume of gas rises. Can be turned on/off to allow/disallow gas flow. Requires power.
|-
|[[File:Volumetric_gas_pump.png]]
|Volumetric Gas Pump
|Pumps gas based on the mole amount instead of pressure. Has a maximum throughput of 200 L/s, clogs at 9000 kPa (9 Mpa). best used when dealing with extremely high pressure. Requires power.
|-
|[[File:Manual_valve_closed.png]]
|Manual Valve
|Allows gas to flow to and from whatever pipes it's connected to. Can be opened (green light) or closed (red light). Doesn't require power.
|-
|[[File:Passive_gate.png]]
|Passive Gate
|An air valve that's one-way only. The red circle is the inlet part. Does not require power.
|-
|[[File:Gas_Mixer.png]]
|Gas Mixer
|Allows you to combine the gas flow of two pipes into one. Has a maximum throughput of 4500 kPa, clogs at 4500 kPa. Allows you to set the percentage of throughput of both inputs. The primary port is parallel with the output while the side port is perpendicular. If one input is missing, it will not allow gas flow.
|-
|[[File:Gas_Filter.png]]
|Gas Filter
|Filters out a selected gas into another pipeline. Has a maximum throughput of 1000 L/s, clogs at 4500 kPa. Filtered gas will exit out of the perpendicular outlet while all other gases continue to flow down the parallel outlet. The filter outlet will not allow gas flow if no gas is selected or if no pipe is connected to the filter outlet.
|-
|[[File:Air_Sensor.png]]
|Air Sensor
|Scans the atmosphere of the tile it's on, shows the information on an air alarm.
|-
|[[File:Air_alarm.png]]
|Air Alarm
|Shows information of the atmosphere in the surrounding area. Allows you to control all the air vents and scrubbers it's connected to. Requires power.
|-
|[[File:Air_vent.png]]
|Gas Vent
|Used to move gas into the surrounding atmosphere. Can store 4500 kpa but only allows 101.3 kPa to flow out of it. If external pressure is higher than the limit, no gas will flow out of the vent. If external pressure drops too much, the vent will go into under-pressure lockout (shown by the vent having yellow lights instead of blue lights) and no gas will flow out of it. You can right-click on a vent and unlock it from under-pressure lockout after you fix the area. Requires power
|-
|[[File:Duel-port_vent.png]]
|Dual-port Gas Vent
|Exactly the same as a normal gas vent, but has two input options instead of one. Requires power.
|-
|[[File:Passive_vent.png]]
|Passive Vent
|Allows any pressure and gas to flow in and out of it. Doesn't require power.
|-
|[[File:Air_Scrubber.png]]
|Air Scrubber
|Slowly siphons selected gases out of the surrounding atmosphere. You can change what gases it siphons via an air alarm. Must be connected to an outlet port to function. Glows blue when working and glows red when in panic mode. Requires power.
|-
|[[File:Air_injector.png]]
|Air Injector
|inject air into the surrounding atmosphere. Does not allow backflow. Maximum throughput is 9000 kPa, clogs at 9000 kPa. Requires power.
|-
|[[File:Pneumatic_valve.png]]
|Pneumatic Valve
|Has three ports: Control, inlet, an outlit. Allows gas flow like a manual valve, but only if the pressure at the control port is high enough. To turn it on, the control port must be at least 1 atm higher than the lowest pressure connected to the valve. I.E the lesser of the inlet and outlit pressure.
|-
|[[File:Canister.png]]
|Canister
|Used to hold and transport gas without the use of pipes. Use a wrench to connect a canister to a connector port. You can put air tanks into canister to fill them with whatever gas is in the canister.
|-
|[[File:Connector_Port.png]]
|Connector Port
|Used to transfer gas from pipes into canisters. Gas will flow into the canister until pressure evens out between the connector port and the canister. Use gas pumps to force more gas in/out of canisters.
|-
|[[File:Gas_miner.png]]
|Gas Miner
|Creates new gases from nothing, used to make sure stations have an infinite amount of a specific gas. Stations usually only come with an oxygen and nitrogen miner. Found in gas chambers in atmos.
|-
|[[File:Gas_recycler.png]]
|Gas Recycler
|Used to recycle carbon dioxide and nitrious oxide into oxygen and nitrogen, respectively. Requires power, 3000 kPa and the gas to be 300°C to work.
|-
|[[File:Condenser.png]]
|Gas Condenser
|Condenses an gas into liquid.
|-
|[[file:Radiators.png]]
|Radiator
|Used to transfer the temperature of a room to the gas in pipes.
|-
|[[File:Freezer.png]][[File:HeaterOff.png]]
|Freezer/heater
|Connected to pipe networks to heat up the gas inside. Has hellfire variants.
|-
|[[File:Portable_Scrubber.png]]
|Portable Scrubber
|Works just like an air scrubber, but you can pull it around! Anchor it down to have it filter harmful gases out of the air.
|-
|[[file:Space_Heater.png]]
|Space Heater
|A portable heater used to regulate temperatures in certain rooms. Anchor it down and click the interact button to make it work.
|}

=== Design Examples ===
'''Pressure Relief Valve'''

[[File:Pressure_relief_system.png]]

This pressure relief system drains the air inside to space if the pressure exceeds 1 atm, which can be used to guard against accidental station overpressure events. A passive vent inside (1) is connected to the control and the inlet. Another passive vent in space (2) is connected to the outlet. Since the outlet pressure is 0 kPa, then the pneumatic valve will only be on if the inside pressure exceeds 1 atm. When that happens, air from inside is transferred into space until the inside pressure is equal to 1 atm.

=== Turning Completeness ===
Pneumatic valves make [https://github.com/space-wizards/space-station-14/pull/10520 atmos turing-complete].

=Gases=
{{Stub}}
==Introduction==
The gases are the most important part of Atmospherics. There are currently 9 gases in the game, each of them has its own Specific Heat Capacity and Molar Mass. Most of them can be created using Gas Miners or created in combustion reactions.

==Gases==

{| class="wikitable sortable"
|+ Gases in SS14
|-
! Gas !! Description !! Specific Heat Capacity !! Molar Mass (g/mol)
|-
| Oxygen [[File:Oxygen gas.png]] || Colorless, reactive gas that humans need to breathe to stay alive. Key oxidizing agent in most combustion reactions. || 20 || 32
|-
| Nitrogen [[File:Nitrogen gas.png]] || Colorless, odorless, inert gas. Somehow, slimes and voxes breathe this. || 30 || 28
|-
| Carbon Dioxide [[File:Carbon dioxide.png]]|| Colorless, odorless, relatively inert gas. Exhaled by creatures that breathe oxygen. Toxic in high enough quantities. The reason why atmospheric technicians are employed. || 30 || 44
|-
| Plasma [[File:Plasma.png]] || Purple, putrid, highly-combustible, and toxic gas. Combusts in the presence of oxygen, but will not ignite on its own. Unfortunately, it is also vitally important to industrial and scientific activities aboard Nanotrasen stations. || 200 || 120
|-
| Tritium [[File:Tritium.png]] || Green, highly-combustible, and radioactive. Combusts in the presence of oxygen. It is formed by the combustion of Oxygen and Plasma. To form Tritium, there must be 96 times more Oxygen than Plasma during the reaction. If there is too much Plasma, the reaction will produce Carbon Dioxide instead. || 10 || 6
|-
| Water Vapor [[File:Water_Vapor.png]] || Water in gaseous form. Due to the unique environment of space, does not condense into liquid water. Harmful to slime people. || 40 || 18
|-
| Miasma [[File:Miasma.png]] || Purple, foul-smelling gas. Breeds disease, toxic, and harmful in sufficiently large concentrations. A by-product of nasty biological processes, including rotting bodies. || 20 || 44
|-
| Nitrous Oxide [[File:Nitrious_Oxide.png]] || Colorless, Otherwise known as "laughing" or "sleepy" gas, it acts as a sedative to non-slimes and is toxic in very high concentrations. Unfortunately, this stuff is exhaled by slimes. Formed from Frezon and Nitrogen || 40 || 44
|-
| Frezon [[File:Frezon.png]] || Blue-greenish gas. Used as an industrial coolant. Used recreationally by some for its euphoric effects, before their lungs freeze out. It has a high value and is made by mixing cold Tritium and Oxygen. || 600 || 50
|}

{{Guides Menu}}

Basics of Atmos

2025-06-21T16:52:48Z

HTMLSystem: Updated gases to show new textures, added more atmos devices, corrected some information.

{{Rewrite|todo=Details, details, details. Someone from #atmos-thread, please!}}

Atmospheric Science refers to the observation and processing of gases in enclosed spaces.

= The Basics of Atmos =
The premise of Atmospherics (or, Atmos) is simple: You want a station that is pressurized and with breathable air, absent of any toxins. The two primary gases used to accomplish that goal are Nitrogen (N2) and Oxygen (O2).
Oxygen is the breathable gas in air, and is respirated by [[Playable Species#Human|Humans]], [[Playable Species#Oni|Onis]], [[Playable Species#Felinid|Felinids]], [[Playable Species#Arachnid|Arachnids]], [[Playable Species#Moth|Moths]], [[Playable Species#Vulpkanin|Vulpkanins]], and [[Playable Species#Harpy|Harpies]] to form Carbon Dioxide (CO2) as a waste gas. Nitrogen, on the other hand, is respirated by [[Playable Species#Slime|Slimes]] and [[Playable Species#Vox|Voxes]] instead of Oxygen.

Pressure, measured in kPa, is determined by the amount of gas (in mols) in an area, and is directly related to temperature (in Kelvin or degrees Celsius); so as temperature goes up, so does the pressure. A safe pressure on the station is roughly around 80 to 140 kPa, and a safe temperature is around 20 degrees Celsius. The ideal environment for all species is 22%-25% Oxygen and 78%-75% Nitrogen at 101.325kPa and 20°C (293.15K).

===Toxins===
''Main article: [[Gases]]''

Toxic gases can bring about many forms of harm to the station, and are dangerous if left unattended because of the tendency of passengers to blindly open doors. These gases are noticeable at high concentrations, as they appear as clouds or smoke. All of these gases are filtered by the scrubber network, and they can be sucked up by [[Atmospheric_Technician#Equipment|Portable Scrubbers ]] considerably faster. To contain the spread of these gases, you’ll want to use [[Atmospheric_Technician#Equipment|Holofan Projectors]], inflatable walls or doors, and if need be, you can weld some airlocks closed to prevent entry, just make sure the gas you're dealing with is not flammable.

= Pipes, Vents and Other Atmospheric Devices =

== General Information ==
All gases can flow through the various pipes found in the game. Gas will always attempt to flow from higher pressure to lower pressure. If a gas is not in a pipe, canister, or tank, it will be in the atmosphere and will interact with other objects.

Gas will always try to even out the pressure. For example, if a empty canister is connected to a pipe pressurized at 4500kpa, the canister will also only be pressurized to 4500kpa. If a canister pressurized at 9000kpa is connected to the same pipe, gas will flow out of the canister until a even pressure is acquired.

If pressurized pipes get unwrenched they will dump all of their contents into the surrounding atmosphere and will, depending on the pressure level, violently blow the wrench user away. You will know if you are unwrenching a pressurized pipe if you get the message stating "A gush of air blows in your face... Maybe you should reconsider?" It is good practice to always use your gas analyzer on every pipe before unwrenching to ensure it is depressurized.

All pipes can be unwrenched to disconnect them from others. By using a welder on a unwrenched pipe segment you can deconstruct it into steel.

A broken or unconnected segment of pipe WILL NOT allow gas to pass through. Do not worry about all your gas escaping out of a broken or unconnected pipe segment.

Most pumps, mixers, and filters do not require power to function. Only air vents and scrubbers require power. You can shift-click on a segment to examine it to see if it is powered.

== Pipes ==
Allows gas to flow freely. Comes in four shapes. Straight, Elbow, 3-way-juntion, 4-way-junction.
{| class="wikitable"
!Image
!Name
!Description
|-
|[[File:Pipe_straight.png]]
|gas pipe straight
|A straight segment of pipe.
|-
|[[File:Pipe_elbow.png]]
|gas pipe bend
|A elbow segment of pipe.
|-
|[[File:Pipe_3_way.png]]
|gas pipe T junction
|A three way junction segment of pipe.
|-
|[[File:Pipe_4_way.png]]
|gas pipe fourway
|A four way junction segment of pipe.
|}

== Atmospheric Devices ==
{| class="wikitable"
!Image
!Name
!Description
|-
|[[File:Gas_pump.png]]
|Gas Pump
|Pumps gas in a specific direction. Has a maximum throughput of 4500 kPa (4.5 Mpa), clogs at 4500 kPa. Loses efficiency as the volume of gas rises. Can be turned on/off to allow/disallow gas flow. Requires power.
|-
|[[File:Volumetric_gas_pump.png]]
|Volumetric Gas Pump
|Pumps gas based on the mole amount instead of pressure. Has a maximum throughput of 200 L/s, clogs at 9000 kPa (9 Mpa). best used when dealing with extremely high pressure. Requires power.
|-
|[[File:Manual_valve_closed.png]]
|Manual Valve
|Allows gas to flow to and from whatever pipes it's connected to. Can be opened (green light) or closed (red light). Doesn't require power.
|-
|[[File:Passive_gate.png]]
|Passive Gate
|An air valve that's one-way only. The red circle is the inlet part. Does not require power.
|-
|[[File:Gas_Mixer.png]]
|Gas Mixer
|Allows you to combine the gas flow of two pipes into one. Has a maximum throughput of 4500 kPa, clogs at 4500 kPa. Allows you to set the percentage of throughput of both inputs. The primary port is parallel with the output while the side port is perpendicular. If one input is missing, it will not allow gas flow.
|-
|[[File:Gas_Filter.png]]
|Gas Filter
|Filters out a selected gas into another pipeline. Has a maximum throughput of 1000 L/s, clogs at 4500 kPa. Filtered gas will exit out of the perpendicular outlet while all other gases continue to flow down the parallel outlet. The filter outlet will not allow gas flow if no gas is selected or if no pipe is connected to the filter outlet.
|-
|[[File:Air_Sensor.png]]
|Air Sensor
|Scans the atmosphere of the tile it's on, shows the information on an air alarm.
|-
|[[File:Air_alarm.png]]
|Air Alarm
|Shows information of the atmosphere in the surrounding area. Allows you to control all the air vents and scrubbers it's connected to. Requires power.
|-
|[[File:Air_vent.png]]
|Gas Vent
|Used to move gas into the surrounding atmosphere. Can store 4500 kpa but only allows 101.3 kPa to flow out of it. If external pressure is higher than the limit, no gas will flow out of the vent. If external pressure drops too much, the vent will go into under-pressure lockout (shown by the vent having yellow lights instead of blue lights) and no gas will flow out of it. You can right-click on a vent and unlock it from under-pressure lockout after you fix the area. Requires power
|-
|[[File:Duel-port_vent.png]]
|Dual-port Gas Vent
|Exactly the same as a normal gas vent, but has two input options instead of one. Requires power.
|-
|[[File:Passive_vent.png]]
|Passive Vent
|Allows any pressure and gas to flow in and out of it. Doesn't require power.
|-
|[[File:Air_Scrubber.png]]
|Air Scrubber
|Slowly siphons selected gases out of the surrounding atmosphere. You can change what gases it siphons via an air alarm. Must be connected to an outlet port to function. Glows blue when working and glows red when in panic mode. Requires power.
|-
|[[File:Air_injector.png]]
|Air Injector
|inject air into the surrounding atmosphere. Does not allow backflow. Maximum throughput is 9000 kPa, clogs at 9000 kPa. Requires power.
|-
|[[File:Pneumatic_valve.png]]
|Pneumatic Valve
|Has three ports: Control, inlet, an outlit. Allows gas flow like a manual valve, but only if the pressure at the control port is high enough. To turn it on, the control port must be at least 1 atm higher than the lowest pressure connected to the valve. I.E the lesser of the inlet and outlit pressure.
|-
|[[File:Canister.png]]
|Canister
|Used to hold and transport gas without the use of pipes. Use a wrench to connect a canister to a connector port. You can put air tanks into canister to fill them with whatever gas is in the canister.
|-
|[[File:Connector_Port.png]]
|Connector Port
|Used to transfer gas from pipes into canisters. Gas will flow into the canister until pressure evens out between the connector port and the canister. Use gas pumps to force more gas in/out of canisters.
|-
|[[File:Gas_miner.png]]
|Gas Miner
|Creates new gases from nothing, used to make sure stations have an infinite amount of a specific gas. Stations usually only come with an oxygen and nitrogen miner. Found in gas chambers in atmos.
|-
|[[File:Gas_recycler.png]]
|Gas Recycler
|Used to recycle carbon dioxide and nitrious oxide into oxygen and nitrogen, respectively. Requires power, 3000 kPa and the gas to be 300°C to work.
|-
|[[File:Condenser.png]]
|Gas Condenser
|Condenses an gas into liquid.
|-
|[[file:Radiators.png]]
|Radiator
|Used to transfer the temperature of a room to the gas in pipes.
|-
|[[File:Freezer.png]][[File:HeaterOff.png]]
|Freezer/heater
|Connected to pipe networks to heat up the gas inside. Has hellfire variants.
|-
|[[File:Portable_Scrubber.png]]
|Portable Scrubber
|Works just like an air scrubber, but you can pull it around! Anchor it down to have it filter harmful gases out of the air.
|-
|[[file:Space_Heater.png]]
|Space Heater
|A portable heater used to regulate temperatures in certain rooms. Anchor it down and click the interact button to make it work.
|}

=== Design Examples ===
'''Pressure Relief Valve'''

[[File:Pressure_relief_system.png]]

This pressure relief system drains the air inside to space if the pressure exceeds 1 atm, which can be used to guard against accidental station overpressure events. A passive vent inside (1) is connected to the control and the inlet. Another passive vent in space (2) is connected to the outlet. Since the outlet pressure is 0 kPa, then the pneumatic valve will only be on if the inside pressure exceeds 1 atm. When that happens, air from inside is transferred into space until the inside pressure is equal to 1 atm.

=== Turning Completeness ===
Pneumatic valves make [https://github.com/space-wizards/space-station-14/pull/10520 atmos turing-complete].

=Gases=
{{Stub}}
==Introduction==
The gases are the most important part of Atmospherics. There are currently 9 gases in the game, each of them has its own Specific Heat Capacity and Molar Mass. Most of them can be created using Gas Miners or created in combustion reactions.

==Gases==

{| class="wikitable sortable"
|+ Gases in SS14
|-
! Gas !! Description !! Specific Heat Capacity !! Molar Mass (g/mol)
|-
| Oxygen [[File:Oxygen gas.png]] || Colorless, reactive gas that humans need to breathe to stay alive. Key oxidizing agent in most combustion reactions. || 20 || 32
|-
| Nitrogen [[File:Nitrogen gas.png]] || Colorless, odorless, inert gas. Somehow, slimes and voxes breathe this. || 30 || 28
|-
| Carbon Dioxide [[File:Carbon dioxide.png]]|| Colorless, odorless, relatively inert gas. Exhaled by creatures that breathe oxygen. Toxic in high enough quantities. The reason why atmospheric technicians are employed. || 30 || 44
|-
| Plasma [[File:Plasma.png]] || Purple, putrid, highly-combustible, and toxic gas. Combusts in the presence of oxygen, but will not ignite on its own. Unfortunately, it is also vitally important to industrial and scientific activities aboard Nanotrasen stations. || 200 || 120
|-
| Tritium [[File:Tritium.png]] || Green, highly-combustible, and radioactive. Combusts in the presence of oxygen. It is formed by the combustion of Oxygen and Plasma. To form Tritium, there must be 96 times more Oxygen than Plasma during the reaction. If there is too much Plasma, the reaction will produce Carbon Dioxide instead. || 10 || 6
|-
| Water Vapor [[File:Water_Vapor.png]] || Water in gaseous form. Due to the unique environment of space, does not condense into liquid water. Harmful to slime people. || 40 || 18
|-
| Miasma [[File:Miasma.png]] || Purple, foul-smelling gas. Breeds disease, toxic, and harmful in sufficiently large concentrations. A by-product of nasty biological processes, including rotting bodies. || 20 || 44
|-
| Nitrous Oxide [[File:Nitrious_Oxide.png]] || Colorless, Otherwise known as "laughing" or "sleepy" gas, it acts as a sedative to non-slimes and is toxic in very high concentrations. Unfortunately, this stuff is exhaled by slimes. Formed from Frezon and Nitrogen || 40 || 44
|-
| Frezon [[File:Frezon.png]] || Blue-greenish gas. Used as an industrial coolant. Used recreationally by some for its euphoric effects, before their lungs freeze out. It has a high value and is made by mixing cold Tritium and Oxygen. || 600 || 50
|}

{{Guides Menu}}

File:Space Heater.png

2025-06-21T16:47:21Z

HTMLSystem: A grey half cylinder.

== Summary ==
A grey half cylinder.

File:Passive vent.png

2025-06-21T16:44:40Z

HTMLSystem: An air vent with no lights on the side.

== Summary ==
An air vent with no lights on the side.

File:Duel-port vent.png

2025-06-21T16:43:59Z

HTMLSystem: An air vent with blue lights on the side and two inlet ports.

== Summary ==
An air vent with blue lights on the side and two inlet ports.

File:Air vent.png

2025-06-21T16:43:23Z

HTMLSystem: An air vent with blue lights on the side.

== Summary ==
An air vent with blue lights on the side.

File:Air alarm.png

2025-06-21T16:41:31Z

HTMLSystem: A white machine that says "Air" on it.

== Summary ==
A white machine that says "Air" on it.

File:Passive gate.png

2025-06-21T16:39:12Z

HTMLSystem: A grey gate with a red circle at the end of it.

== Summary ==
A grey gate with a red circle at the end of it.

File:Radiators.png

2025-06-21T16:37:23Z

HTMLSystem: A dark grey rectangle

== Summary ==
A dark grey rectangle

File:Plasma.png

2025-06-21T16:35:10Z

HTMLSystem: A bright magenta gas.

== Summary ==
A bright magenta gas.

File:Tritium.png

2025-06-21T16:34:24Z

HTMLSystem: A bright green gas.

== Summary ==
A bright green gas.

File:Water Vapor.png

2025-06-21T16:33:32Z

HTMLSystem: A black canister with white lines canister. White gas is in the air.

== Summary ==
A black canister with white lines canister. White gas is in the air.

File:Frezon.png

2025-06-21T16:29:06Z

HTMLSystem: A light blue gas canister. Icy blue gas is in the air.

== Summary ==
A light blue gas canister. Icy blue gas is in the air.

File:Miasma.png

2025-06-21T16:22:55Z

HTMLSystem: A green gas canister with yellow lines, a passive vent, and a gas pump. purple gas is in the air.

== Summary ==
A green gas canister with yellow lines, a passive vent, and a gas pump. purple gas is in the air.

File:Nitrious Oxide.png

2025-06-21T16:21:42Z

HTMLSystem: A red gas canister with pink lines, a passive vent, and a gas pump.

== Summary ==
A red gas canister with pink lines, a passive vent, and a gas pump.

File:HeaterOff.png

2025-06-21T16:00:19Z

HTMLSystem: A white box with a orange light on the top.

== Summary ==
A white box with a orange light on the top.

File:Freezer.png

2025-06-21T15:59:47Z

HTMLSystem: A white box with a blue light on the top.

== Summary ==
A white box with a blue light on the top.

File:Condenser.png

2025-06-21T15:48:32Z

HTMLSystem: A grey box with a transparent liquid container and fan on the top of it.

== Summary ==
A grey box with a transparent liquid container and fan on the top of it.

Basics of Atmos

2025-06-21T15:32:48Z

HTMLSystem: Finished the atmos devices table, renamed Ammonia to Miasma.

{{Rewrite|todo=Details, details, details. Someone from #atmos-thread, please!}}

Atmospheric Science refers to the observation and processing of gases in enclosed spaces.

= The Basics of Atmos =
The premise of Atmospherics (or, Atmos) is simple: You want a station that is pressurized and with breathable air, absent of any toxins. The two primary gases used to accomplish that goal are Nitrogen (N2) and Oxygen (O2).
Oxygen is the breathable gas in air, and is respirated by [[Playable Species#Human|Humans]], [[Playable Species#Oni|Onis]], [[Playable Species#Felinid|Felinids]], [[Playable Species#Arachnid|Arachnids]], [[Playable Species#Moth|Moths]], [[Playable Species#Vulpkanin|Vulpkanins]], and [[Playable Species#Harpy|Harpies]] to form Carbon Dioxide (CO2) as a waste gas. Nitrogen, on the other hand, is respirated by [[Playable Species#Slime|Slimes]] and [[Playable Species#Vox|Voxes]] instead of Oxygen.

Pressure, measured in kPa, is determined by the amount of gas (in mols) in an area, and is directly related to temperature (in Kelvin or degrees Celsius); so as temperature goes up, so does the pressure. A safe pressure on the station is roughly around 80 to 140 kPa, and a safe temperature is around 20 degrees Celsius. The ideal environment for all species is 21% Oxygen and 79% Nitrogen at 101.325kPa and 20°C or 293.15K

===Toxins===
''Main article: [[Gases]]''

Toxic gases can bring about many forms of harm to the station, and are dangerous if left unattended because of the tendency of passengers to blindly open doors. These gases are noticeable at high concentrations, as they appear as clouds or smoke. All of these gases are filtered by the scrubber network, and they can be sucked up by [[Atmospheric_Technician#Equipment|Portable Scrubbers ]] considerably faster. To contain the spread of these gases, you’ll want to use [[Atmospheric_Technician#Equipment|Holofan Projectors]], inflatable walls or doors, and if need be, you can weld some airlocks closed to prevent entry, just make sure the gas you're dealing with is not flammable.

= Pipes, Vents and Other Atmospheric Devices =

== General Information ==
All gases can flow through the various pipes found in the game. Gas will always attempt to flow from higher pressure to lower pressure. If a gas is not in a pipe, canister, or tank, it will be in the atmosphere and will interact with other objects.

Gas will always try to even out the pressure. For example, if a empty canister is connected to a pipe pressurized at 4500kpa, the canister will also only be pressurized to 4500kpa. If a canister pressurized at 9000kpa is connected to the same pipe, gas will flow out of the canister until a even pressure is acquired.

If pressurized pipes get unwrenched they will dump all of their contents into the surrounding atmosphere and will, depending on the pressure level, violently blow the wrench user away. You will know if you are unwrenching a pressurized pipe if you get the message stating "A gush of air blows in your face... Maybe you should reconsider?" It is good practice to always use your gas analyzer on every pipe before unwrenching to ensure it is depressurized.

All pipes can be unwrenched to disconnect them from others. By using a welder on a unwrenched pipe segment you can deconstruct it into steel.

A broken or unconnected segment of pipe WILL NOT allow gas to pass through. Do not worry about all your gas escaping out of a broken or unconnected pipe segment.

Most pumps, mixers, and filters do not require power to function. Only air vents and scrubbers require power. You can shift-click on a segment to examine it to see if it is powered.

== Pipes ==
Allows gas to flow freely. Comes in four shapes. Straight, Elbow, 3-way-juntion, 4-way-junction.
{| class="wikitable"
!Image
!Name
!Description
|-
|[[File:Pipe_straight.png]]
|gas pipe straight
|A straight segment of pipe.
|-
|[[File:Pipe_elbow.png]]
|gas pipe bend
|A elbow segment of pipe.
|-
|[[File:Pipe_3_way.png]]
|gas pipe T junction
|A three way junction segment of pipe.
|-
|[[File:Pipe_4_way.png]]
|gas pipe fourway
|A four way junction segment of pipe.
|}

== Atmospheric Devices ==
{| class="wikitable"
!Image
!Name
!Description
|-
|[[File:Gas_pump.png]]
|Gas Pump
|Pumps gas in a specific direction. Has a maximum throughput of 4500 kPa (4.5 Mpa), clogs at 4500 kPa. Loses efficiency as the volume of gas rises. Can be turned on/off to allow/disallow gas flow. Requires power.
|-
|[[File:Volumetric_gas_pump.png]]
|Volumetric Gas Pump
|Pumps gas based on the mole amount instead of pressure. Has a maximum throughput of 200 L/s, clogs at 9000 kPa (9 Mpa). best used when dealing with extremely high pressure. Requires power.
|-
|[[File:Manual_valve_closed.png]]
|Manual Valve
|Allows gas to flow to and from whatever pipes it's connected to. Can be opened (green light) or closed (red light). Doesn't require power.
|-
|[[File:Gas_Mixer.png]]
|Gas Mixer
|Allows you to combine the gas flow of two pipes into one. Has a maximum throughput of 4500 kPa, clogs at 4500 kPa. Allows you to set the percentage of throughput of both inputs. The primary port is parallel with the output while the side port is perpendicular. If one input is missing, it will not allow gas flow. Requires power.
|-
|[[File:Gas_Filter.png]]
|Gas Filter
|Filters out a selected gas into another pipeline. Has a maximum throughput of 1000 L/s, clogs at 4500 kPa. Filtered gas will exit out of the perpendicular outlet while all other gases continue to flow down the parallel outlet. The filter outlet will not allow gas flow if no gas is selected or if no pipe is connected to the filter outlet. Requires power.
|-
|
|Air Sensor
|Scans the atmosphere of the tile it's on, shows the information on an air alarm.
|-
|
|Air Alarm
|Shows information of the atmosphere in the surrounding area. Allows you to control all the air vents and scrubbers it's connected to. Requires power.
|-
|[[File:Gas_vent.png]]
|Gas Vent
|Used to move gas into the surrounding atmosphere. Can store 4500 kpa but only allows 101.3 kPa to flow out of it. If external pressure is higher than the limit, no gas will flow out of the vent. If external pressure drops too much, the vent will go into under-pressure lockout (shown by the vent having yellow lights instead of blue lights) and no gas will flow out of it. You can right-click on a vent and unlock it from under-pressure lockout after you fix the area. Requires power
|-
|[[File:Gas_vent.png]]
|Dual-port Gas Vent
|Exactly the same as a normal gas vent, but has two input options instead of one. Requires power.
|-
|
|Passive Vent
|Allows any pressure and gas to flow in and out of it. Doesn't require power.
|-
|[[File:Air_Scrubber.png]]
|Air Scrubber
|Slowly siphons selected gases out of the surrounding atmosphere. You can change what gases it siphons via an air alarm. Must be connected to an outlet port to function. Glows blue when working and glows red when in panic mode. Requires power.
|-
|[[File:Air_injector.png]]
|Air Injector
|inject air into the surrounding atmosphere. Does not allow backflow. Maximum throughput is 9000 kPa, clogs at 9000 kPa. Requires power.
|-
|[[File:Pneumatic_valve.png]]
|Pneumatic Valve
|Has three ports: Control, inlet, an outlit. Allows gas flow like a manual valve, but only if the pressure at the control port is high enough. To turn it on, the control port must be at least 1 atm higher than the lowest pressure connected to the valve. I.E the lesser of the inlet and outlit pressure.
|-
|[[File:Canister.png]]
|Canister
|Used to hold and transport gas without the use of pipes. Use a wrench to connect a canister to a connector port. You can put air tanks into canister to fill them with whatever gas is in the canister.
|-
|[[File:Connector_port.png]]
|Connector Port
|Used to transfer gas from pipes into canisters. Gas will flow into the canister until pressure evens out between the connector port and the canister. Use gas pumps to force more gas in/out of canisters.
|-
|[[File:Gas_miner.png]]
|Gas Miner
|Creates new gases from nothing, used to make sure stations have an infinite amount of a specific gas. Stations usually only come with an oxygen and nitrogen miner. Found in gas chambers in atmos.
|-
|[[File:Gas_recycler.png]]
|Gas Recycler
|Used to recycle carbon dioxide and nitrious oxide into oxygen and nitrogen, respectively. Requires power, 3000 kPa and the gas to be 300°C to work.
|}

=== Design Examples ===
'''Pressure Relief Valve'''

[[File:Pressure_relief_system.png]]

This pressure relief system drains the air inside to space if the pressure exceeds 1 atm, which can be used to guard against accidental station overpressure events. A passive vent inside (1) is connected to the control and the inlet. Another passive vent in space (2) is connected to the outlet. Since the outlet pressure is 0 kPa, then the pneumatic valve will only be on if the inside pressure exceeds 1 atm. When that happens, air from inside is transferred into space until the inside pressure is equal to 1 atm.

=== Turning Completeness ===
Pneumatic valves make [https://github.com/space-wizards/space-station-14/pull/10520 atmos turing-complete].

=Gases=
{{Stub}}
==Introduction==
The gases are the most important part of Atmospherics. There are currently 9 gases in the game, each of them has its own Specific Heat Capacity and Molar Mass. The standard air mix on the station is 21% oxygen and 79% nitrogen at 101.325kPa and 20°C or 293.15K. Most of them can be created using [[Pipes and vents#Gas_Miner|Gas Miners]] or created in combustion reactions.

==Gases==

{| class="wikitable sortable"
|+ Gases in SS14
|-
! Gas !! Description !! Specific Heat Capacity !! Molar Mass (g/mol)
|-
| Oxygen [[File:Oxygen gas.png]] || Colorless, reactive gas that humans need to breathe to stay alive. Key oxidizing agent in most combustion reactions. || 20 || 32
|-
| Nitrogen [[File:Nitrogen gas.png]] || Colorless, odorless, inert gas. Somehow, slimes and voxes breathe this. || 30 || 28
|-
| Carbon Dioxide [[File:Carbon dioxide.png]]|| Colorless, odorless, relatively inert gas. Exhaled by creatures that breathe oxygen. Toxic in high enough quantities. The reason why atmospheric technicians are employed. || 30 || 44
|-
| Plasma [[File:Plasma gas.png]] || Purple, putrid, highly-combustible, and toxic gas. Combusts in the presence of oxygen, but will not ignite on its own. Unfortunately, it is also vitally important to industrial and scientific activities aboard Nanotrasen stations. || 200 || 120
|-
| Tritium [[File:Tritium gas.png]] || Green, highly-combustible, and radioactive. Combusts in the presence of oxygen. It is formed by the combustion of Oxygen and Plasma. To form Tritium, there must be 96 times more Oxygen than Plasma during the reaction. If there is too much Plasma, the reaction will produce Carbon Dioxide instead. || 10 || 6
|-
| Water Vapor [[File:Water vapor.png]] || Water in gaseous form. Due to the unique environment of space, does not condense into liquid water. Harmful to slime people. || 40 || 18
|-
| Miasma || Purple, foul-smelling gas. Breeds disease, toxic, and harmful in sufficiently large concentrations. A by-product of nasty biological processes, including rotting bodies. || 20 || 44
|-
| Nitrous Oxide || Bluish gas. Otherwise known as "laughing" or "sleepy" gas, it acts as a sedative to non-slimes and is toxic in very high concentrations. Unfortunately, this stuff is exhaled by slimes. Formed from Frezon and Nitrogen || 40 || 44
|-
| Frezon || Blue-greenish gas. Used as an industrial coolant. Used recreationally by some for its euphoric effects, before their lungs freeze out. It has a high value and is made by mixing cold Tritium and Oxygen. || 600 || 50
|}

{{Guides Menu}}

Basics of Atmos

2025-06-20T23:46:49Z

HTMLSystem: Condensed most of the atmospheric devices into a single table. Simplified a lot of their descriptions. Added what pressures they clog at. Added if they require power or not.

{{Rewrite|todo=Details, details, details. Someone from #atmos-thread, please!}}

Atmospheric Science refers to the observation and processing of gases in enclosed spaces.

= The Basics of Atmos =
The premise of Atmospherics (or, Atmos) is simple: You want a station that is pressurized and with breathable air, absent of any toxins. The two primary gases used to accomplish that goal are Nitrogen (N2) and Oxygen (O2).
Oxygen is the breathable gas in air, and is respirated by [[Playable Species#Human|Humans]], [[Playable Species#Oni|Onis]], [[Playable Species#Felinid|Felinids]], [[Playable Species#Arachnid|Arachnids]], [[Playable Species#Moth|Moths]], [[Playable Species#Vulpkanin|Vulpkanins]], and [[Playable Species#Harpy|Harpies]] to form Carbon Dioxide (CO2) as a waste gas. Nitrogen, on the other hand, is respirated by [[Playable Species#Slime|Slimes]] and [[Playable Species#Vox|Voxes]] instead of Oxygen.

Pressure, measured in kPa, is determined by the amount of gas (in mols) in an area, and is directly related to temperature (in Kelvin or degrees Celsius); so as temperature goes up, so does the pressure. A safe pressure on the station is roughly around 80 to 140 kPa, and a safe temperature is around 20 degrees Celsius. The ideal environment for all species is 21% Oxygen and 79% Nitrogen at 101.325kPa and 20°C or 293.15K

===Toxins===
''Main article: [[Gases]]''

Toxic gases can bring about many forms of harm to the station, and are dangerous if left unattended because of the tendency of passengers to blindly open doors. These gases are noticeable at high concentrations, as they appear as clouds or smoke. All of these gases are filtered by the scrubber network, and they can be sucked up by [[Atmospheric_Technician#Equipment|Portable Scrubbers ]] considerably faster. To contain the spread of these gases, you’ll want to use [[Atmospheric_Technician#Equipment|Holofan Projectors]], inflatable walls or doors, and if need be, you can weld some airlocks closed to prevent entry, just make sure the gas you're dealing with is not flammable.

= Pipes, Vents and Other Atmospheric Devices =

== General Information ==
All gases can flow through the various pipes found in the game. Gas will always attempt to flow from higher pressure to lower pressure. If a gas is not in a pipe, canister, or tank, it will be in the atmosphere and will interact with other objects.

Gas will always try to even out the pressure. For example, if a empty canister is connected to a pipe pressurized at 4500kpa, the canister will also only be pressurized to 4500kpa. If a canister pressurized at 9000kpa is connected to the same pipe, gas will flow out of the canister until a even pressure is acquired.

If pressurized pipes get unwrenched they will dump all of their contents into the surrounding atmosphere and will, depending on the pressure level, violently blow the wrench user away. You will know if you are unwrenching a pressurized pipe if you get the message stating "A gush of air blows in your face... Maybe you should reconsider?" It is good practice to always use your gas analyzer on every pipe before unwrenching to ensure it is depressurized.

All pipes can be unwrenched to disconnect them from others. By using a welder on a unwrenched pipe segment you can deconstruct it into steel.

A broken or unconnected segment of pipe WILL NOT allow gas to pass through. Do not worry about all your gas escaping out of a broken or unconnected pipe segment.

Most pumps, mixers, and filters do not require power to function. Only air vents and scrubbers require power. You can shift-click on a segment to examine it to see if it is powered.

== Pipes ==
Allows gas to flow freely. Comes in four shapes. Straight, Elbow, 3-way-juntion, 4-way-junction.
{| class="wikitable"
!Image
!Name
!Description
|-
|[[File:Pipe_straight.png]]
|gas pipe straight
|A straight segment of pipe.
|-
|[[File:Pipe_elbow.png]]
|gas pipe bend
|A elbow segment of pipe.
|-
|[[File:Pipe_3_way.png]]
|gas pipe T junction
|A three way junction segment of pipe.
|-
|[[File:Pipe_4_way.png]]
|gas pipe fourway
|A four way junction segment of pipe.
|}

== Atmospheric Devices ==
{| class="wikitable"
!Image
!Name
!Description
|-
|[[File:Gas_pump.png]]
|Gas Pump
|Pumps gas in a specific direction. Has a maximum throughput of 4500 kPa (4.5 Mpa), clogs at 4500 kPa. Loses efficiency as the volume of gas rises. Can be turned on/off to allow/disallow gas flow. Requires power.
|-
|[[File:Volumetric_gas_pump.png]]
|Volumetric Gas Pump
|Pumps gas based on the mole amount instead of pressure. Has a maximum throughput of 200 L/s, clogs at 9000 kPa (9 Mpa). best used when dealing with extremely high pressure. Requires power.
|-
|[[File:Manual_valve_closed.png]]
|Manual Valve
|Allows gas to flow to and from whatever pipes it's connected to. Can be opened (green light) or closed (red light). Doesn't require power.
|-
|[[File:Gas_Mixer.png]]
|Gas Mixer
|Allows you to combine the gas flow of two pipes into one. Has a maximum throughput of 4500 kPa, clogs at 4500 kPa. Allows you to set the percentage of throughput of both inputs. The primary port is parallel with the output while the side port is perpendicular. If one input is missing, it will not allow gas flow. Requires power.
|-
|[[File:Gas_Filter.png]]
|Gas Filter
|Filters out a selected gas into another pipeline. Has a maximum throughput of 1000 L/s. Filtered gas will exit out of the perpendicular outlet while all other gases continue to flow down the parallel outlet. The filter outlet will not allow gas flow if no gas is selected or if no pipe is connected to the filter outlet. Requires power.
|-
|
|Air Sensor
|Scans the atmosphere of the tile it's on, shows the information on an air alarm.
|-
|
|Air Alarm
|Shows information of the atmosphere in the surrounding area. Allows you to control all the air vents and scrubbers it's connected to. Requires power.
|-
|[[File:Gas_vent.png]]
|Gas Vent
|Used to move gas into the surrounding atmosphere. Can store 4500 kpa but only allows 101.3 kPa to flow out of it. If external pressure is higher than the limit, no gas will flow out of the vent. If external pressure drops too much, the vent will go into under-pressure lockout (shown by the vent having yellow lights instead of blue lights) and no gas will flow out of it. You can right-click on a vent and unlock it from under-pressure lockout after you fix the area. Requires power
|-
|[[File:Gas_vent.png]]
|Dual-port Gas Vent
|Exactly the same as a normal gas vent, but has two input options instead of one. Requires power.
|-
|
|Passive Vent
|Allows any pressure and gas to flow in and out of it. Doesn't require power.
|-
|[[File:Air_Scrubber.png]]
|Air Scrubber
|Slowly siphons selected gases out of the surrounding atmosphere. You can change what gases it siphons via an air alarm. Must be connected to an outlet port to function. Glows blue when working and glows red when in panic mode. Requires power.
|-
|[[File:Air_injector.png]]
|Air Injector
|inject air into the surrounding atmosphere. Does not allow backflow. Maximum throughput is 9000 kPa, clogs at 9000 kPa. Requires power.
|-
|[[File:Pneumatic_valve.png]]
|Pneumatic Valve
|Has three ports: Control, inlet, an outlit. Allows gas flow like a manual valve, but only if the pressure at the control port is high enough. To turn it on, the control port must be at least 1 atm higher than the lowest pressure connected to the valve. I.E the lesser of the inlet and outlit pressure.
|-
|[[File:Canister.png]]
|Canister
|Used to hold and transport gas without the use of pipes. Use a wrench to connect a canister to a connector port. You can put air tanks into canister to fill them with whatever gas is in the canister.
|-
|[[File:Connector_port.png]]
|Connector Port
|Used to transfer gas from pipes into canisters. Gas will flow into the canister until pressure evens out between the connector port and the canister. Use gas pumps to force more gas in/out of canisters.
|}

=== Design Examples ===
'''Pressure Relief Valve'''

[[File:Pressure_relief_system.png]]

This pressure relief system drains the air inside to space if the pressure exceeds 1 atm, which can be used to guard against accidental station overpressure events. A passive vent inside (1) is connected to the control and the inlet. Another passive vent in space (2) is connected to the outlet. Since the outlet pressure is 0 kPa, then the pneumatic valve will only be on if the inside pressure exceeds 1 atm. When that happens, air from inside is transferred into space until the inside pressure is equal to 1 atm.

=== Turning Completeness ===
Pneumatic valves make [https://github.com/space-wizards/space-station-14/pull/10520 atmos turing-complete].

== Gas Miner ==
[[File:Gas_miner.png]]

Gas miners create new gas from nothing and are currently used to make sure the station has an infinite amount of a specific gas. Gas Miners come in different types and create different types of gas. A oxygen miner will create oxygen gas while a plasma miner will create plasma gas. Gas Miners can be found in Atmospherics inside each gas holding chamber.

== Gas Recycler ==
[[File:Gas_recycler.png]]

Gas recyclers are used to recycle waste gasses like CO2 into breathable oxygen. They require a lot of pressure to work, more than is created by simply breathing. They also require the waste gas to be heated to around 300°C, thus a heater and a freezer are required for it to work. They recycler loop can be filled with N2 to boost the pressure.

=Gases=
{{Stub}}
==Introduction==
The gases are the most important part of Atmospherics. There are currently 9 gases in the game, each of them has its own Specific Heat Capacity and Molar Mass. The standard air mix on the station is 21% oxygen and 79% nitrogen at 101.325kPa and 20°C or 293.15K. Most of them can be created using [[Pipes and vents#Gas_Miner|Gas Miners]] or created in combustion reactions.

==Gases==

{| class="wikitable sortable"
|+ Gases in SS14
|-
! Gas !! Description !! Specific Heat Capacity !! Molar Mass (g/mol)
|-
| Oxygen [[File:Oxygen gas.png]] || Colorless, reactive gas that humans need to breathe to stay alive. Key oxidizing agent in most combustion reactions. || 20 || 32
|-
| Nitrogen [[File:Nitrogen gas.png]] || Colorless, odorless, inert gas. Somehow, slimes and voxes breathe this. || 30 || 28
|-
| Carbon Dioxide [[File:Carbon dioxide.png]]|| Colorless, odorless, relatively inert gas. Exhaled by creatures that breathe oxygen. Toxic in high enough quantities. The reason why atmospheric technicians are employed. || 30 || 44
|-
| Plasma [[File:Plasma gas.png]] || Purple, putrid, highly-combustible, and toxic gas. Combusts in the presence of oxygen, but will not ignite on its own. Unfortunately, it is also vitally important to industrial and scientific activities aboard Nanotrasen stations. || 200 || 120
|-
| Tritium [[File:Tritium gas.png]] || Green, highly-combustible, and radioactive. Combusts in the presence of oxygen. It is formed by the combustion of Oxygen and Plasma. To form Tritium, there must be 96 times more Oxygen than Plasma during the reaction. If there is too much Plasma, the reaction will produce Carbon Dioxide instead. || 10 || 6
|-
| Water Vapor [[File:Water vapor.png]] || Water in gaseous form. Due to the unique environment of space, does not condense into liquid water. Harmful to slime people. || 40 || 18
|-
| Ammonia || Brownish, foul-smelling gas. Breeds disease, toxic, and harmful in sufficiently large concentrations. A by-product of nasty biological processes, including rotting bodies. || 20 || 44
|-
| Nitrous Oxide || Bluish gas. Otherwise known as "laughing" or "sleepy" gas, it acts as a sedative to non-slimes and is toxic in very high concentrations. Unfortunately, this stuff is exhaled by slimes. Formed from Frezon and Nitrogen || 40 || 44
|-
| Frezon || Blue-greenish gas. Used as an industrial coolant. Used recreationally by some for its euphoric effects, before their lungs freeze out. It has a high value and is made by mixing cold Tritium and Oxygen. || 600 || 50
|}

{{Guides Menu}}

Basics of Atmos

2025-06-20T17:38:43Z

HTMLSystem: Added that Voxes also breath nitrogen

{{Rewrite|todo=Details, details, details. Someone from #atmos-thread, please!}}

Atmospheric Science refers to the observation and processing of gases in enclosed spaces. [[Atmospheric Technician|Atmospheric Technicians]] are concerned with maintaining a safe atmosphere in the station by:
# Setting up the station's gas distribution system, or "distro," to supply the station with breathable air.
# Using handheld gas analyzers and fixed air alarm systems to monitor levels of both safe and hazardous gases.
# Utilizing holofan projectors and inflatable walls to cordon off hull breaches or gas leaks.
# Moving and placing portable scrubbers to manually filter the air in case of escaped gases.

= The Basics of Atmos =
The premise of Atmospherics (or, Atmos) is simple: You want a station that is pressurized and with breathable air, absent of any toxins. The two primary gases used to accomplish that goal are Nitrogen (N2) and Oxygen (O2).
Oxygen is the breathable gas in air, and is respirated by [[Playable Species#Human|Humans]], [[Playable Species#Oni|Onis]], [[Playable Species#Felinid|Felinids]], [[Playable Species#Arachnid|Arachnids]], [[Playable Species#Moth|Moths]], [[Playable Species#Vulpkanin|Vulpkanins]], and [[Playable Species#Harpy|Harpies]] to form Carbon Dioxide (CO2) as a waste gas. Nitrogen, on the other hand, is respirated by [[Playable Species#Slime|Slimes]] and [[Playable Species#Vox|Voxes]] instead of Oxygen.

Pressure, measured in kPa, is determined by the amount of gas (in mols) in an area, and is directly related to temperature (in Kelvin or degrees Celsius); so as temperature goes up, so does the pressure. A safe pressure on the station is roughly around 80 to 140 kPa, and a safe temperature is around 20 degrees Celsius. The ideal environment for all species is 21% Oxygen and 79% Nitrogen at 101.325kPa and 20°C or 293.15K

===Toxins===
''Main article: [[Gases]]''

Toxic gases can bring about many forms of harm to the station, and are dangerous if left unattended because of the tendency of passengers to blindly open doors. These gases are noticeable at high concentrations, as they appear as clouds or smoke. All of these gases are filtered by the scrubber network, and they can be sucked up by [[Atmospheric_Technician#Equipment|Portable Scrubbers ]] considerably faster. To contain the spread of these gases, you’ll want to use [[Atmospheric_Technician#Equipment|Holofan Projectors]], inflatable walls or doors, and if need be, you can weld some airlocks closed to prevent entry, just make sure the gas you're dealing with is not flammable.

= Understanding the Distribution Area =
The distribution area (or, '''Distro''') refers to the area of Atmos that contains the origin point of the air and waste networks, as well as the chambers for storing and processing the gases.

A distro’s purpose is to:

# Supply oxygen and nitrogen to a gas mixer which supplies air to the station.
# Filter waste and toxic gases from the station.
# Store gases in a secure area where [[Atmospheric Technician|Atmos Techs]] are able to work with them.
The distro is able to do all of these things because of the system of pipes, pumps, filters, and mixers it is outfitted with. '''Every distro does NOT require placing/altering pipes for it to function properly!'''

===Distro Annotated===
A typical distro layout is shown below:

[[File:Atmosia Annotated.png|border|center]]

# Nitrogen holding chamber with (maybe) a nitrogen gas miner
# Oxygen holding chamber with (maybe) a oxygen gas miner
# Pump for moving nitrogen to the mixer
# Pump for moving oxygen to the mixer
# Mixer to mix nitrogen and oxygen in an appropriate ratio for the station
# Volume pump to move mixer output to the station's main distro pipe
# Main distro pipe
# Valve to shut off freezer
# Freezer to reduce air temperature in distro
# Valve to shut off heater
# Heater to increase air temperature in distro
# Main waste pipe
# Volume pump to move air into the filter banks
# Bank of filters to separate different types of gases from the waste pipe

===Holding Chambers===
[[File:Atmos holding chambers.png|thumb|Gas holding chambers]]

Holding chambers store a supply of gas for you to pump into the station when needed. Some stations come with gas miners that produce an unlimited supply of the mined gas. Walls and windows prevent gas from escaping to space; if the holding chambers are broken, then the gas inside will be lost.

Holding chambers may be labeled with the [[#Gases|type of gas]] that they are designed to store.

Use [[Pipes and vents#Pumps|pumps]] to move gases in and out of holding chambers.

===Mix Chamber===

[[File:Mix chamber in use.png|thumb|A mix chamber in use]]

The mix chamber is an empty holding area with its own separate loop of pipes and pumps in atmospherics. The mix loop is generally marked with brown pipes and the holding chamber can usually be found close to the external hull, separated from the station by reinforced walls and windows. There will be an emergency button nearby to vent the chamber to space if you need to dump your mix in case an accident arises, or you just wish to reset the chamber for a new mix. The mix chamber is here for you to experiment with different mixes, ratios, temperatures, and pressures while combining gases.

On most stations the Mix chamber will loop around to either to the distro loop, or back to the waste loop. It is generally a good practice to have your mix loop flow back into the waste loop to recycle any unspent gases. You should '''NEVER''' have the mix loop flow into distro unless you have a [[Traitor|very good reason.]] Most savvy Atmospherics Technicians physically disconnect the mix loop from distro at round start to prevent an easy sabotage target or accident from occurring later in the round.

See the guide to [[Gases]] if you are interested to learn how different gases interact with each other at different temperatures and pressures.

See the guide to [[Setting up the mix chamber]] if you want to learn how to properly and safely use the mix chamber.

==Setting Up The Distro==
===Main Distro Loop===
The first step in setting up the distro is to determine which line goes to the [[Pipes_and_vents#Vents|air vents]]. It is usually colored blue to make it easily identifiable. Once you’ve identified that line, follow the pipes back to the Oxygen and Nitrogen chambers.

Out of the chambers, there are two lines of pipes, one that goes ''into'' the chamber from a gas filter (14) and one that comes ''out'' of the chamber through a pump (3), (4). Turn these pumps on and set them to max pressure. After that, follow the pipe that leads out of the chambers and you’ll find they eventually lead to a gas mixer (5). Set it to the correct air mix (21% Oxygen to 79% Nitrogen) and pressure. If there is a pump after the mixer, you can set the pressure to 4500kPa. Otherwise, set the pressure to 200kPa

Air vents will pump air from distro into the station as long as the pressure inside distro is positive. Increasing the pressure inside distro allows the air vent pumps to move air faster. Contrary to popular belief, the pressure inside '''does not''' set the pressure of air coming out of the actively pumped air vents that start connected to distro.

Check the pressure of distro at round start and periodically throughout the shift. Low or slowly rising distro pressure at round start is a sign of <s>shoddy station quality</s> design flaws causing low flow rates into distro. Low distro pressure in the middle of the round may be indicative of spacing on the station.

===Waste Loop===
Waste, or the waste loop, is usually marked with red pipes and is responsible for removing waste gas around the station via scrubbers. These pipes start and end in atmospherics and are looped around the entire station. The main purpose of the waste loop is the ensure that harmful gases get removed from the station's atmosphere. Scrubbers will remove gas from the hallways and return it to Atmospherics where it will then be separated by gas filters into various holding chambers. Harmful gases will be deposited into their assigned chambers and the breathable air will once again make its way back to Distro and into the station to continue the cycle.

To set it up, follow the line and configure all of the gas filters going into the chambers to the correct gas (14). At the end of the waste line you will find a passive vent going to space. All the unfiltered gas will end up in space. Make sure the valve leading to the vent is opened.

===Gas Recycling===
Not all stations come with an O2 miner, '''[[Maps#Shōkō_Station|Shōkō]] in particular has no O2 gas miner''', so they require a [[Pipes_and_vents#Gas_Recycler|gas recycler]] to get Oxygen. It turns Carbon Dioxide into Oxygen and Nitrogen Oxide into Nitrogen.
It takes a bit of instruction to use, and the basic premise is as follows:
* A mix of gases that is at least 300 degrees Celsius and pressurized no less than 3000 kPa enters through the north side of the recycler, and the mix exits out the south side, with some of the carbon dioxide converted to oxygen and some of the nitrous oxide converted to nitrogen.

The recycler loop must be heated to at least 300 degrees Celsius (~575 Kelvin), after that, pressure must be at least 3000 kPa. Pressure can be added by increasing the presence of other gases (not necessarily CO2 or N2O) into the recycler loop’s pipes. Nitrogen is usually abundant and inert, so it is a good contender. Pressure in the pipes will lower as gases leave the recycler loop, so a pump is often placed at the end to regulate pressure.

''Note that gases that leave the recycler will remain heated, so it’s important to regulate temperature if the O2 is going to be used in station air. A freezer can be placed after the recycler loop, or after the breathable air mixer to ensure the station doesn’t burn alive.''

==Optimizing The Distro==
You can optimize the distro the layout to more effectively pump gases into the station. Specific steps to do so vary from station to station. Here is an example of setting up distro for the [[#Atmos Annotated|example above]]:

# Remove (6) and replace it with a straight pipe segment. Pumps reduce gas flow rate, and when spacing occurs, (6) is typically a bottleneck when re-pressurizing the station.
# Set (5) to output 200 kPa. The pressure in the distro pipe influences how quickly air vents can move air from distro into the station. Setting this too low reduces the flow rate, but setting this too high could be dangerous if a [[Traitor]] replaces an air vent with a passive vent.
# Increase output pressure of (3), (4), (13) and (14) to their maximum settings.

== Species Specifics ==
Not all [[Playable Species|species]] breathe oxygen! In fact, there are some that can breathe other gasses, and some which ''must'' breathe other gasses:

* '''Oxygen is toxic to Voxes.''' They breathe nitrogen instead. Many stations have a dedicated "Vox Box" room which only has nitrogen.
* '''Water vapour is harmful to slimes'''.
* Feroxi can breathe water vapour.
* Diona can breathe CO2 in addition to oxygen.

Keep this in mind when setting up the distro. Adding water vapour would harm slimes!

= Pipes, Vents and Other Atmospheric Devices =

== General Information ==
All gases can flow through the various pipes found in the game. Gas will always attempt to flow from higher pressure to lower pressure. If a gas is not in a pipe, canister, or tank, it will be in the atmosphere and will interact with other objects.

Gas will always try to even out the pressure. For example, if a empty canister is connected to a pipe pressurized at 4500kpa, the canister will also only be pressurized to 4500kpa. If a canister pressurized at 9000kpa is connected to the same pipe, gas will flow out of the canister until a even pressure is acquired.

If pressurized pipes get unwrenched they will dump all of their contents into the surrounding atmosphere and will, depending on the pressure level, violently blow the wrench user away. You will know if you are unwrenching a pressurized pipe if you get the message stating "A gush of air blows in your face... Maybe you should reconsider?" It is good practice to always use your gas analyzer on every pipe before unwrenching to ensure it is depressurized.

All pipes can be unwrenched to disconnect them from others. By using a welder on a unwrenched pipe segment you can deconstruct it into steel.

A broken or unconnected segment of pipe WILL NOT allow gas to pass through. Do not worry about all your gas escaping out of a broken or unconnected pipe segment.

Most pumps, mixers, and filters do not require power to function. Only air vents and scrubbers require power. You can shift-click on a segment to examine it to see if it is powered.

== Pipes ==
Allows gas to flow freely. Comes in four shapes. Straight, Elbow, 3-way-juntion, 4-way-junction.
{| class="wikitable"
!Image
!Name
!Description
|-
|[[File:Pipe_straight.png]]
|gas pipe straight
|A straight segment of pipe.
|-
|[[File:Pipe_elbow.png]]
|gas pipe bend
|A elbow segment of pipe.
|-
|[[File:Pipe_3_way.png]]
|gas pipe T junction
|A three way junction segment of pipe.
|-
|[[File:Pipe_4_way.png]]
|gas pipe fourway
|A four way junction segment of pipe.
|}

== Pumps ==
Pumps gas to the other side based on the set pressure. Blocks gas from passing through if toggled off. Comes in two varities:

[[File:Gas_pump.png]]

[[File:Gas_pump_interface.png]]

Standard gas pump. Pumps gas along based on internal and external pressure. Has a maximum throughput of 4.5 Mpa. Mostly used to act as a valve to allow/disallow gas to flow from one pipe to another. Works very well in high pressure pipes but looses effectiveness when the pressure is lower. Regular gas pumps are more effective in lower pressure systems but will lose efficiency as the volume of gas rises.

At lower pressures a gas pump is generally a better option at moving gas.

[[File:Volumetric_gas_pump.png]]

[[File:Volumetric_gas_pump_interface.png]]

Volumetric pump. Pumps gas along based of internal and external mole amount. Has a maximum throughput of 200 L/s. Acts exactly like a gas pump but works off of mole amount instead of pressure. can move about twice as much gas compared to a regular gas pump if conditions are right.

For extremely high pressure pipes a volumetric pump is generally a better option at moving gas.

In certain cases volumetric pumps are also better if you are using huge quantities of gas.

== Manual Valves ==
Acts like a switch that either allows gas to flow through, or prevents it from flowing through. Can be toggled on and off.
{| class="wikitable"
!Image
!Name
!Description
|-
|[[File:Manual_valve_open.png]]
|Manual valve open
|A green light is open.
|-
|[[File:Manual_valve_closed.png]]
|Manual valve closed
|A red light is closed.
|}

== Gas Mixer ==
[[File:Gas_Mixer.png]]

[[File:Gas_mixer_interface.png]]

A gas mixer is a fancy version of the gas pump. Operates as a pressure pump, with associated limitations. It allows you to combine the gas flow of two different pipes and mix them into a single pipe. The gas mixer will combine the contents of two different pipes and will give you the option of setting the percentage of throughput you want on each of the input pipes. The primary port will be parallel with the output while the side port will be perpendicular.

Gas mixers are essential for distro as the station's atmosphere is 20% oxygen and 80% nitrogen. Gas mixers are also used for the combination of two different gases to create a new gas such as a common burn-mix.

If the gas mixer is toggled off then it will not allow any gas to flow through.

If both inputs are set to receive gas then both inputs must have gas flowing through them for the pump to work. For example, if the mixer is set to mix gas at a 80 to 20 ratio and the input pipe at 20% has no gas then the mixer will not allow the input pipe with 80% gas to flow through and vice versa.

== Gas Filter ==
[[File:Gas_Filter.png]]

[[File:Gas_filter_interface.png]]

Gas filters are another special type of gas pump. Operates as a volume pump, with associated limitations. Gas filters are primarily used to extract a specific individual type gas from a pipe. They function similarly to the gas mixer, except they have one inlet port and two output ports. When gas flows through a mixer the selected gas to be filtered out will exit the perpendicular outlet port while all other gases will continue to flow down the parallel outlet port. If you wish to filter out more than one gas you will need to set up gas filters in series for each specific gas.

Gas filters are used to extract each individual gas from the waste loop. This ensures that only one type of gas is present in each specific gas holding tank. Gas filters are essential when you are trying to target and isolate a specific gas.

Gas filters do not require both outputs to be connected to function if there is no gas selected to filter or the filtered gas is not present. In this case the filter will act as a simple straight pipe segment. However, The filter will not allow gas to flow if the selected gas is present and there is no pipe connected to the perpendicular filter port.

== Vents ==
[[File:Gas_vent.png]]

Gas vents come in three varieties: Standard, Dual-port, and Passive.

All gas vents are solely used to move gas from pipes into the surrounding atmosphere. Gas vents are commonly used in conjunction with the distro loop to distribute breathable air to the station. Gas vents and the distro system are responsible for replenishing the atmosphere on the station.

A standard air vent will only allow a maximum pressure of 101.3 kPa to flow. If the external pressure is higher than the limit, no gas will flow out of the vent. Requires power to function.

A dual-port air vent is exactly like a standard air vent but it has two inlet connection ports.

A passive air vent does not require power and will allow any pressure to flow in '''both''' directions depending on the internal and external pressures. If the internal, or pipe pressure, is higher than the external, or outside atmosphere, Gas will flow out. The opposite is true if the external pressure is higher than the internal pressure. Passive air vents are mostly used in the mix tank and [[Supermatter]] chamber where very high pressures are needed.

== Air Scrubber ==
[[File:Air_Scubber.png]]

Air scrubbers slowly suck gas out of the surrounding atmosphere and can be found spread around the station. Mostly used in the waste loop, air scrubbers will syphon gas out of the atmosphere and shunt it along the waste loop where the gas will then be recycled and filtered into the gas holding chambers.

Air scrubbers must be powered and connected to an outlet port in order to function. A properly functioning air scrubber will be glowing blue.

== Air Injector ==
[[File:Air_injector.png]]

Air injectors have one purpose. They simply exist to only allow gas to flow from a pressurized pipe into the surrounding atmosphere. This handy little tool are useful when you want to inject a gas into an area but not allow any backflow. usually used with a filter/injector combination to single out a specific gas and pump it into a holding chamber.

Air injectors have a maximum output pressure of 9000 kPa.

== Pneumatic Valve ==
[[File:Pneumatic_valve.png|72x72px]]

Pneumatic valves have three ports: control, inlet, and outlet. Like manual valves, pneumatic valves permit bidirectional flow between the inlet and outlet, but only if the pressure at the control port is high enough.

To turn a pneumatic valve on, the control pressure must be at least 1 atm higher than the lowest pressure connected to the pneumatic valve, i.e. the lesser of the inlet and outlet pressures. The direction of flow between the inlet and outlet is from higher to lower pressure.

The flow rate limit of the pneumatic value is linear (proportional to control pressure) in a small region above the on threshold. It then saturates at 200 L/sec.

=== Design Examples ===
'''Pressure Relief Valve'''

[[File:Pressure_relief_system.png]]

This pressure relief system drains the air inside to space if the pressure exceeds 1 atm, which can be used to guard against accidental station overpressure events. A passive vent inside (1) is connected to the control and the inlet. Another passive vent in space (2) is connected to the outlet. Since the outlet pressure is 0 kPa, then the pneumatic valve will only be on if the inside pressure exceeds 1 atm. When that happens, air from inside is transferred into space until the inside pressure is equal to 1 atm.

=== Turning Completeness ===
Pneumatic valves make [https://github.com/space-wizards/space-station-14/pull/10520 atmos turing-complete].

== Connecter Port ==
[[File:Connecter_port.png]]

Connecter ports are solely used to transfer gas from a pipe into a canister and vice versa. Wrench a canister on top of a connecter port to connect them. A connected canister will allow gas to flow until the pressure evens out.

== Canisters ==
[[File:Canister.png]]

[[File:Canister_interface.png]]

Canisters are used to hold and transport gas. Drag a canister over to a connecter port and use a wrench to connect it. If the connecter port's internal pressure is higher than the canister pressure, gas will flow into the canister until the pressure evens out.

If the canister has a higher pressure gas will flow out until the pressure difference is even. Canisters can release gas in different ways depending on the situation. Gas will only flow out if the release valve is toggled open. If the release valve pressure is lower than the external pressure, no gas will flow out.

* If the canister is wrenched to a connector port, gas will flow into the connector port.
* If a oxygen tank is inserted into a canister, gas will flow into the oxygen tank.
* If the canister is not connected to anything, gas will flow out into the surrounding atmosphere.

== Gas Miner ==
[[File:Gas_miner.png]]

Gas miners create new gas from nothing and are currently used to make sure the station has an infinite amount of a specific gas. Gas Miners come in different types and create different types of gas. A oxygen miner will create oxygen gas while a plasma miner will create plasma gas. Gas Miners can be found in Atmospherics inside each gas holding chamber.

== Gas Recycler ==
[[File:Gas_recycler.png]]

Gas recyclers are used to recycle waste gasses like CO2 into breathable oxygen. They require a lot of pressure to work, more than is created by simply breathing. They also require the waste gas to be heated to around 300°C, thus a heater and a freezer are required for it to work. They recycler loop can be filled with N2 to boost the pressure.

=Gases=
{{Stub}}
==Introduction==
The gases are the most important part of Atmospherics. There are currently 9 gases in the game, each of them has its own Specific Heat Capacity and Molar Mass. The standard air mix on the station is 21% oxygen and 79% nitrogen at 101.325kPa and 20°C or 293.15K. Most of them can be created using [[Pipes and vents#Gas_Miner|Gas Miners]] or created in combustion reactions.

==Gases==

{| class="wikitable sortable"
|+ Gases in SS14
|-
! Gas !! Description !! Specific Heat Capacity !! Molar Mass (g/mol)
|-
| Oxygen [[File:Oxygen gas.png]] || Colorless, reactive gas that humans need to breathe to stay alive. Key oxidizing agent in most combustion reactions. || 20 || 32
|-
| Nitrogen [[File:Nitrogen gas.png]] || Colorless, odorless, inert gas. Somehow, slimes and voxes breathe this. || 30 || 28
|-
| Carbon Dioxide [[File:Carbon dioxide.png]]|| Colorless, odorless, relatively inert gas. Exhaled by creatures that breathe oxygen. Toxic in high enough quantities. The reason why atmospheric technicians are employed. || 30 || 44
|-
| Plasma [[File:Plasma gas.png]] || Purple, putrid, highly-combustible, and toxic gas. Combusts in the presence of oxygen, but will not ignite on its own. Unfortunately, it is also vitally important to industrial and scientific activities aboard Nanotrasen stations. || 200 || 120
|-
| Tritium [[File:Tritium gas.png]] || Green, highly-combustible, and radioactive. Combusts in the presence of oxygen. It is formed by the combustion of Oxygen and Plasma. To form Tritium, there must be 96 times more Oxygen than Plasma during the reaction. If there is too much Plasma, the reaction will produce Carbon Dioxide instead. || 10 || 6
|-
| Water Vapor [[File:Water vapor.png]] || Water in gaseous form. Due to the unique environment of space, does not condense into liquid water. Harmful to slime people. || 40 || 18
|-
| Ammonia || Brownish, foul-smelling gas. Breeds disease, toxic, and harmful in sufficiently large concentrations. A by-product of nasty biological processes, including rotting bodies. || 20 || 44
|-
| Nitrous Oxide || Bluish gas. Otherwise known as "laughing" or "sleepy" gas, it acts as a sedative to non-slimes and is toxic in very high concentrations. Unfortunately, this stuff is exhaled by slimes. Formed from Frezon and Nitrogen || 40 || 44
|-
| Frezon || Blue-greenish gas. Used as an industrial coolant. Used recreationally by some for its euphoric effects, before their lungs freeze out. It has a high value and is made by mixing cold Tritium and Oxygen. || 600 || 50
|}

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