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H2 Combustor

Operation
Power Usage	10W
Construction
Placed with	Kit (Atmospherics)
Placed on	Small Grid
Stage 1
Deconstruction
Deconstructed with	Drill
Item received	Kit (Atmospherics)

Description

Burns a fuel mixture of volatiles and oxygen to produce high-temperature Steam. The H2 Combustor should be fed a 2:1 ratio of volatiles to oxygen. It will output mix of gases at 2500 C, made up of approximately 46.67% Carbon Dioxide, 30% Steam, and 23.33% |Pollutants, plus trace amounts of unburnt volatiles and oxygen.

To generate electricity with fuel instead, see the Gas Fuel Generator. Alternatively, the heat generated by the H2 Combustor may be used with a Stirling Engine to generate power at a much lower efficiency.

However, while lower efficiency than a Gas Fuel Generator, in terms of energy output per mole of fuel input, a Stirling Engine is a practical and effective first step for cooling the output due to the fact that it generates power from cooling, rather than consuming power to cool the output (such as with an Air Conditioner). Depending on the exact setup, and how efficiently the Stirling Engine can be cooled (best on cold non-vacuum planets like Europa and Mars), it's possible for the Stirling Engine to offset the power cost of H2 Combustor, Filtration, and the entire rest of the cooling system, resulting in a zero-loss or even net-positive system. Alternatively, the outputs may be air-cooled using radiators on cooler planets or in a vacuum.

200 Moles of Volatiles and 100 Moles of Oxygen will produce 135 Moles of Water + Waste products.

Characteristics

• Consumes fuel from the input, requiring a 2:1 mix of volatiles to oxygen. Imprecise ratios will result in lower production rate, and the unburnt excess in the output.
• Produces approximately 46% more moles output than the fuel input consumed.
• Rate of fuel consumption from the input, and thus rate of production, is based on the pressure of the input. The unit will consume 3.42 L of fuel from the input each tick.
• Has an internal volume of 100L, where the product of the combustion is stored before being pushed to the output pipe.
• The unit, and gas inside it, will interact with the surrounding environment, as well as radiating heat in a vacuum (and thus cooling the gas inside it). In an air-filled room, this will significantly heat the surroundings.
• The initial temperature of the products is 2500 C.
• The water in the output is initially produced as a liquid before rapidly evaporating due to the temperature. This results in noticeable innate cooling of the output, up to ~100 C. Further losses from radiation or convection cooling of the surroundings also assist with this.
• Each tick that the unit is turned on, it will first equalize its internal volume with the output pipe network, before pulling in and combusting more fuel to add to the internal volume.
  • This only occurs when the unit is turned on, so if the unit is switched off, whatever gas remains in the unit will continue cooling through radiation or convection without equalizing to the output pipe.
  • Since the equalization occurs before more fuel is pulled in, after the first tick the unit is on, it will have gases stored inside it but won't have pushed any to the output pipe yet.
  • Has a Mode variable that can be set to 0 to allow the unit to be kept on, and continue to push gases to the output, without pulling more fuel in.
• Consumes only 10 W of power even when running.

Logic

These are all the logic parameters of the device.

Parameter	Type	Access	Description
On	Boolean	Read/Write	The current state of the device, 0 for off, 1 for on.
Mode	Boolean	Read/Write	Whether the unit pulls in more fuel input, if the unit is also turned on. 1 (default) for pulling more fuel in, 0 to disable input.
Activate	Boolean	Read/Write	Same effect as, and synced with, the Mode var.
RequiredPower	Float	Read-only	Idle and active operating power quantity. 10W.
Error	Boolean	Read-only	1 if the device is in error state, otherwise 0.
Power	Float	Read-only	Can be read to return if the device is correctly powered or not, set via power system, return 1 if powered and 0 if not.
Setting	Integer	Read/Write	No apparent effect.
Lock	Boolean	Read/Write	1 if a device is locked, otherwise 0, can be set in most devices and prevents the user from writing values.
PrefabHash	Integer	Read-only	The hash of the structure.
Maximum	Float	Read-only	Maximum setting of the device.
Ratio	Float	Read-only	Context specific value depending on the device, 0 to based ratio.

See Also

• Kit (Atmospherics)