Difference between revisions of "Fuel"

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'''Fuel''', also called '''propellant''', is the key [[resource]] used to propel [[spacecraft|craft]]. All fuels except [[xenon gas]] are combined with [[oxidizer]] and burned in the [[engine]]'s combustion chamber; xenon gas is simply accelerated by electromagnetic forces.
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'''Fuel''', also called '''propellant''', is an expendable [[resource]] used to operate [[reaction engine]]s. Some fuels require another resource for the engine using them to operate, and others operate alone. Unlike some of these companion resources, there are no parts which generate fuel; its only source is tanks added to [[craft]] during construction in the [[Editor]].
  
Fuel either references all [[resource]]s, including [[electric charge]], which are used by engines; or alternatively, and more commonly, describes only the resource which is used while the engine is burning. The latter definition describes:
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The types of fuel are:
 
* [[Liquid fuel]]
 
* [[Liquid fuel]]
 
* [[Solid fuel]]
 
* [[Solid fuel]]
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* [[Monopropellant]]
 
* [[Xenon gas]]
 
* [[Xenon gas]]
* [[Monopropellant]]
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All fuels can be transferred between compatible types of fuel storage tanks ''except'' solid fuel, which is built into the same part as the engines which utilize it.
The first definition would also include [[oxidizer]] and [[intake air]], both of which supply oxygen to [[liquid fuel]]. In wider terms, [[electric charge]] may also be covered, since it is required by [[ion engine]]s.
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'''Liquid fuel''' is the most commonly used and must be combusted with a resource representing [[oxygen]]. For [[rocket engine]]s it must be combined with onboard [[oxidizer]]. For [[jet engine]]s it must be combined with sufficient [[intake air]] continuously collected inside an oxygen-rich [[atmosphere]].
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'''Solid fuel''' works alone and is built into solid rocket boosters (SRBs).
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'''Monopropellant''' works alone, most often used in [[Reaction Control System]] thrusters.
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'''Xenon gas''' is used by [[ion engine]]s, accelerated by electromagnetic forces, and requires [[electric current]] either stored in [[battery|batteries]] and/or drawn from generators or solar panels.

Revision as of 19:43, 11 March 2015

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Fuel, also called propellant, is an expendable resource used to operate reaction engines. Some fuels require another resource for the engine using them to operate, and others operate alone. Unlike some of these companion resources, there are no parts which generate fuel; its only source is tanks added to craft during construction in the Editor.

The types of fuel are:

All fuels can be transferred between compatible types of fuel storage tanks except solid fuel, which is built into the same part as the engines which utilize it.

Liquid fuel is the most commonly used and must be combusted with a resource representing oxygen. For rocket engines it must be combined with onboard oxidizer. For jet engines it must be combined with sufficient intake air continuously collected inside an oxygen-rich atmosphere.

Solid fuel works alone and is built into solid rocket boosters (SRBs).

Monopropellant works alone, most often used in Reaction Control System thrusters.

Xenon gas is used by ion engines, accelerated by electromagnetic forces, and requires electric current either stored in batteries and/or drawn from generators or solar panels.