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Gas

From Unofficial Stationeers Wiki

Revision as of 07:48, 31 July 2023 by 173.215.27.101 (talk) (Gases)
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  • stationpedia has simple phase diagrams for all Gasses, a more complex phase change diagram can be located Here

Gas may refer to:


Gases

Name Filter Color Molar Heat Capacity (J) Latent Heat (kJ) Solid Temperature (°K/°C) Boiling Point at 100KPa Minimum Condensation Maximum Liquid Temperature
Carbon Dioxide (CO2) Gray 28.2 0.6 218 / -55.3 N/A. 517kPa at 218K°/-55.3C° 265K°/-8.1C° at 6000KPa
Nitrogen (N2) Black 20.6 0.5 40 / -233 75K°/-198C° 6.3kPa at 40K°/233C° 190K°/-83C° at 6000kPa
Nitrous Oxide (N2O) Green 37.2 4 252 / -21 N/A 800KPa at 252K°/-21C° 431K/158C° at 2000kPa
Oxygen (O2) White 21.1 0.8 56.4 / -217 90K°/-183C° 6.3kPa at 56.4K/-217 C° 162k°/-111C° at 6000kPa
Pollutant (X) Yellow 24.8 2 173 / -99.8 N/A 1800kPa at 173K°/-99.8C° 425K°/152C° at 6000kPa
Volatiles (H2) Red 20.4 1 81.6 / -192 112K°/-162C° 6.3kPa at 81.6K°/-192C° 195K°/-78.1C° at 6000kPa
Steam (H20) Blue 72 8 273 / 0 373k°/100C° 6.3kPa at 273K°/0C° 643k°/370C° at 6000kPa

* phase change has been added to the game system and most gasses now have an associated [Liquid] and a pure Solids phase .

Mixtures

Name Contents Tank Color Notes
Fuel 67% H2, 33%O2 Orange Autoignition at 573.15K°/300C°
HydroNox 50%H2, 50%N2O N/A. Autoignition at 323.15K°/50C°
Air 75% N2, 25% O2 White 16kPa Partial Pressure O2 minimum is required for human player breathing. Hyperoxia is not simulated.

Simulation Mechanics

  • Ideal gas law (PV=nRT) is simulated.
  • Thermal conductivity is not simulated. (f.e. heat is transferred at the same fixed rate for all compounds; structures and devices are ignored)
  • Thermal radiation is simulated. (caveat: radiated infrared is not absorbed by nearby objects)
  • Phase change is simulated. (caveat: simplified and with fixed temperature for solid state)
  • Fluid dynamics are not simulated. (caveat: thermal convection is partially simulated)
  • Each environment grid cube acts as a single point and each connected pipe network acts as a single point.
  • All pumps/mixer also act as a check valve.
  • Gas stoichiometry is partially utilized. Some reactions do not reflect real-life.
  • Gas pressure determines liquid pressure; gravity/height is ignored.
  • Pipes have arbitrary stress value determined by amount of non-correct phase of substance within them (liquid in a gas pipe).
  • [bug?] Liquid temperature is controlled by gas temperature. (if no gas present, liquid heater will not function)