Gas
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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:
- Atmosphere
- Carbon Dioxide (CO2)
- Fuel (66.6% H2 + 33.3% O2)
- Hydrogen (H2)
- Nitrogen (N2)
- Nitrous Oxide (N2O)
- Oxygen (O2)
- Pollutants (X)
- Volatiles
- Water (H2O)
Gases
| Name | Filter Color | Molar Heat Capacity (J) | Latent Heat (kJ) | Solid Temperature (K/°C) | Boiling Point at 100 kPa | Minimum Condensation (kPa at (K/°C)) | Maximum Liquid Temperature ((K/°C) at kPa) |
|---|---|---|---|---|---|---|---|
| Carbon Dioxide (CO2) | Gray | 28.2 | 0.6 | 218 / -55.3 | N/A | 517 at 218/-55.3 | 265/-8.1 at 6000 |
| Nitrogen (N2) | Black | 20.6 | 0.5 | 40 / -233 | 75/-198 | 6.3 at 40/233 | 190/-83 at 6000 |
| Nitrous Oxide (N2O) | Green | 37.2 | 4 | 252 / -21 | N/A | 800 at 252/-21 | 431/158 at 2000 |
| Oxygen (O2) | White | 21.1 | 0.8 | 56.4 / -217 | 90/-183 | 6.3 at 56.4/-217 | 162/-111 at 6000 |
| Pollutant (X) | Yellow | 24.8 | 2 | 173 / -99.8 | N/A | 1800 at 173/-99.8 | 425/152 at 6000 |
| Volatiles (H2) | Red | 20.4 | 1 | 81.6 / -192 | 112/-162 | 6.3 at 81.6/-192 | 195/-78.1 at 6000 |
| Water (H20) | Blue | 72 | 8 | 273 / 0 | 373/100 | 6.3 at 273/0 | 643/370 at 6000 |
* phase change has been added to the game system and most gasses now have an associated [Liquid] and a pure Solids phase .
* the following exist only in solid state and have no gaseous form: Charcoal, Coal, Silicon, Iron, Copper, Nickel, Silver, Gold, Lead, Uranium
Mixtures
| Name | Contents | Tank Color | Notes |
|---|---|---|---|
| Fuel | 67% H2, 33% O2 | Orange | Autoignition at 573.15 K / 300 °C |
| HydroNox | 50% H2, 50% N2O | N/A | Autoignition at 323.15 K / 50 °C |
| Air | 75% N2, 25% O2 | White | 16 kPa 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 substances; 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)