Guide to Atmospherics: Difference between revisions
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[[File:atmos.png]][[File:Atmos_simplified.png]] | [[File:atmos.png]][[File:Atmos_simplified.png]] | ||
This is [[Atmospherics]]. Hopefully, you are an [[Atmospheric Technician]]. That picture shows you how Atmos starts up, but you don't want it to be like that for too long. Even with the | This is [[Atmospherics]]. Hopefully, you are an [[Atmospheric Technician]]. That picture shows you how Atmos starts up, but you don't want it to be like that for too long. Even with the pressures changed, it is rather pathetic in it's ability to provide air or suck the bad air out. And that's what we're going to fix. | ||
But first, let's go through some theory. | |||
==The Gases | ==The Gases and Their Functions== | ||
These are the different gases that can be found in game. | |||
===O<sub>2</sub>=== | ===O<sub>2</sub>=== | ||
You breathe this. Running out of O2 will cause your slow death by suffocation damage. It is also required for a fire to even start, and hold, ending the fire when the O2 or Plasma is depleted. Having less than 16 kPa of O2 flowing into your lungs chokes you. | Oxygen. You breathe this. Running out of O2 will cause your slow death by suffocation damage. It is also required for a fire to even start, and hold, ending the fire when the O2 or Plasma is depleted. Having less than 16 kPa of O2 flowing into your lungs chokes you. | ||
Heat Capacity: 20 | Heat Capacity: 20 | ||
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===N<sub>2</sub>=== | ===N<sub>2</sub>=== | ||
Soaks up heat in the air, and lowers the temperature of a fire. By association, it can very quickly lower the temperature of a fiery rupture to the point where the flames self-extinguish. Proof of this can be seen if you go down to the incinerator with a can of burnmix, and a can of 20% burnmix and 80% N2. The N2 contaminated fire will not burn nearly as hot or as well. This is why the Toxins guide recommends opening up a can of N2 to the air, it can and will save your life if there's a rupture. | Nitrogen. Soaks up heat in the air, and lowers the temperature of a fire. By association, it can very quickly lower the temperature of a fiery rupture to the point where the flames self-extinguish. Proof of this can be seen if you go down to the incinerator with a can of burnmix, and a can of 20% burnmix and 80% N2. The N2 contaminated fire will not burn nearly as hot or as well. This is why the Toxins guide recommends opening up a can of N2 to the air, it can and will save your life if there's a rupture. Due to the vastly higher specific heat ( around 300 as opposed to 20) N2 is incredibly better at stopping fires: in 100 kPa of N2/O2 80/20 and 100 kPa of O2 100, the N2/O2 is effectively 12200 kPa as opposed to 100 kPa in terms of soaking up heat and it doesn't allow the fire to grow in size as quickly, the combination of which can even lead to non-permanent ignition sources being snuffed out by themselves. | ||
Heat Capacity: 300 | Heat Capacity: 300 | ||
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===CO<sub>2</sub>=== | ===CO<sub>2</sub>=== | ||
An invisible, heavy gas, CO2 is one of the first and fastest gases the scrubbers suck out of the air. It chokes people effectively and quickly, and if you can be bothered to set the alarms up, will result in a invisible room that kills those in it. Takes some setup and can be very, very annoying. The emote for this at low levels is (gasps alone? chokes and gasps?) | Carbon Dioxide. An invisible, heavy gas, CO2 is one of the first and fastest gases the scrubbers suck out of the air. It chokes people effectively and quickly, and if you can be bothered to set the alarms up, will result in a invisible room that kills those in it. Takes some setup and can be very, very annoying. The emote for this at low levels is (gasps alone? chokes and gasps?) | ||
Heat Capacity: 30 | Heat Capacity: 30 | ||
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===N<sub>2</sub>O=== | ===N<sub>2</sub>O=== | ||
A white-flecked gas. Makes you laugh at low doses and at higher ones puts you to sleep. Scrubbers don't deal with it too well and portable scrubbers just choke on it. If using this as a sleep gas mix do *not* forget the O2 at at least 16 kPa, or you will kill someone. | Nitrous Oxide. A white-flecked gas. Makes you laugh at low doses and at higher ones puts you to sleep. Scrubbers don't deal with it too well and portable scrubbers just choke on it. If using this as a sleep gas mix do *not* forget the O2 at at least 16 kPa, or you will kill someone. | ||
Heat Capacity: | Heat Capacity: | ||
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===Plasma=== | ===Plasma=== | ||
The one truly flammable gas on the station, plasma is purple, and highly toxic. Of note is the fact that in the presence of any oxygen at high pressures, Plasma pumped into air, and Burn Mix (O2 and Plasma), can and will spontaneously ignite on turf at high pressures. | Toxins. The one truly flammable gas on the station, plasma is purple, and highly toxic. Of note is the fact that in the presence of any oxygen at high pressures, Plasma pumped into air, and Burn Mix (O2 and Plasma), can and will spontaneously ignite on turf at high pressures. | ||
Heat Capacity: | Heat Capacity: 200 | ||
===Plasma Type B=== | ===Plasma Type B=== | ||
While not on | While not on station, Plasma B is premixed burnmix. It can still be adminspawned in a pipetank, as it still exists in code. This is more here as a note of interest. | ||
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'''Volume (V)''': Another unseen variable, Volume is the | '''Volume (V)''': Another unseen variable, Volume is how much the turf/canister/tank or piped tank has space inside it. This helps dictate how much gas it can hold. Volume is essentially the 'mole divider' when converting between a canister/air pump to your tank; having a higher volume essentially makes the tank that much more efficient, proportionally, so an EEOT has twice the contained air per kPa in comparison to a regular EOT. | ||
<!-- (Potential list of volume for a tile, pipe, airtanks, etanks, canisters, ect?) --> | |||
* Emergency O2 tanks have volume 3. | |||
* Extended Emergency O2 tanks have volume 6. | |||
* The big, blue, tanks have volume 10. | |||
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<!-- Not too much more to say, but you're welcome to codebrowse for the variables I've indicated with x, y and similar. Hawk. --> | <!-- Not too much more to say, but you're welcome to codebrowse for the variables I've indicated with x, y and similar. Hawk. --> | ||
==Setting Up Atmos== | |||
Due to the minimum of 16 kPa of O2, and the dangers of skirting that in slight reductions in pressure become excessively lethal (17% oxygen? 90 kPa due to fire from a while ago? You start dying. 20% can go down to 80 kPa, at which point the air alarm is in red anyway). | |||
At the top are the two machines can dispense infinite pipes, and your wrench can disconnect and connect pipes. A T-ray Scanner helps you look for damage to the system. | |||
'''Some things to remember when setting up:''' | |||
*You cannot disconnect pumps when they are on. | |||
*Pipes occasionally bug out and delete themselves. Good thing you have infinite. This is caused when a pipe is not connected to a 'base'. Manifolds, ports, vents, and scrubbers (and probably filters, mixers, etc) can be placed by themselves and serve as 'bases'. | |||
'''Things to make sure of:''' | |||
*Use the O2 and N2 computers and set their vents to the maximum pressure (5066.25 kPa). | |||
*Set all Gas Filter's to maximum pressure, and the 'unfiltered to mix' to max (4500 kPa) pressure. | |||
*The waste pumps should all be at 4500 kPa pressure. Make sure they are pointed in the right direction. | |||
*Basically, anything circled red in the guide set to it's maximum possible pressure. | |||
==When All is Done== | |||
There is a short list of things which fall under your stead: | |||
*First and by far most important: make sure pipes don't get broken and if they do, fix them. | |||
*Go around swiping your ID on air alarms, setting Plasma and N2O to siphon, and then re-swiping to lock it. You can ask the AI to do this as well, and probably should. | |||
*Least importantly, maintain the disposals system. You can generate pipes, but it needs welding and is generally a pain in the ass. You can also make fun slides, though. | |||
==Optimising Internals== | |||
*On a basic view, a 16 kPa minimum O2 requirement in internals. Pure O2 is theoretically toxic in real life, but has no representation for this in code, and takes a while to be really dangerous anyway (they use it to treat certain diseases, for example), and thus using an air tank for internals is fairly inefficient. | |||
*Cold air has more moles per kPa, and because people breath in moles, and filling tanks usefully for internals is largely capped by the 1000 kPa release pressure, which means cooling your air before using in internals is important. Cooled down air, such as from a freezer-ed canister, is the most efficient way to set up internals. Cooling it below 273 K will result in icicles inside lungs, though. | |||
*If you need to empty an internal tank to make space for better, colder air, you use an air pump set to pump in and turned on then off with the tank inside it, allowing you to refill it more effectively. | |||
==Using an Air Alarm== | ==Using an Air Alarm== | ||
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*N2O is invisible at low pressures. If you start giggling, put on your internals to avoid passing out. | *N2O is invisible at low pressures. If you start giggling, put on your internals to avoid passing out. | ||
*Any gas can displace O2, and less than ''16'' (also useful for optimizing internals) kPa of oxygen starts the Oxyloss. CO2 can be removed with the scrubbers, but to get rid of N2 simply apply some way of removing gas from the air and adding O2. My personal favorite is 2 air pumps, 3 connectors and a Air Filter and a canister: 1 pump draws in, goes through the connection and filters N2 into the canister, and the rest to the other pump, which expels it. Can also be used for N2O which is only sluggishly scrubbed otherwise. | *Any gas can displace O2, and less than ''16'' (also useful for optimizing internals) kPa of oxygen starts the Oxyloss. CO2 can be removed with the scrubbers, but to get rid of N2 simply apply some way of removing gas from the air and adding O2. My personal favorite is 2 air pumps, 3 connectors and a Air Filter and a canister: 1 pump draws in, goes through the connection and filters N2 into the canister, and the rest to the other pump, which expels it. Can also be used for N2O which is only sluggishly scrubbed otherwise. | ||
*Pressure's above | *Pressure's above 750 kPa do 10DPS + 5DPS for every extra 375 kPa above that mark, rounded off. Space suits completely block it all, but there is no other defence. | ||
[[Category:Guides]] | [[Category:Guides]] | ||