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...s hydrogen fuel (for [[automotive]] uses), which are also categorized as a liquid fuel. This article deals primarily with the concept of liquid fuels in relation to ground transport. However, others such as [[rocket fu

[[Image:hydrogengas.jpg|frame|Hydrogen Gas in a Flask (it is colourless).]] ...must be [[Hydrogen production|made]] using other fuels or energy sources. Hydrogen can react with [[oxygen]] in a [[fuel cell]], producing water (H<sub>2</sub

...[power (physics)|power]] for locomotion. These vehicles generally use the hydrogen in one of two methods: [[combustion]] or [[fuel-cell]] conversion: * In combustion, the hydrogen is "burned" in engines in fundamentally the same method as traditional gaso

[[Hydraulic]] systems use liquid under pressure to transmit power; [[canals]] and [[hydroelectric]] [[power ...[grain alcohol]], [[methane]], [[synthetic gas]], [[cryogenic]] [[gas]], [[hydrogen]] gas (H₂) and [[liquified natural gas]] (LNG).

...oleum gases without modifications except for the fuel delivery components. Liquid and gaseous [[biofuel]]s of adequate formulation can also be used. ...tric efficiency is still roughly five times lower than petrol. This is why hydrogen must be compressed if there is to be a useful amount of stored energy.

...Engines that use gases for fuel are called gas engines and those that use liquid hydrocarbons are called oil engines. However, gasoline engines are often ca ...oleum gases without modifications except for the fuel delivery components. Liquid and gaseous [[biofuel]]s of adequate formulation can also be used.

...h an electric spark exploded a mixture of [[Earth's atmosphere|air]] and [[hydrogen]], firing a cork from the end of the gun. ...aac de Rivaz]] built an internal combustion engine powered by a mixture of hydrogen and oxygen.

...Chemical energy is usually in the form of [[diesel]] or [[petrol]]. The liquid fuels are usually converted into electricity by a [[generator]] powered by ...gile, sensitive to contamination, and require external reactants such as [[hydrogen]]. Batteries require highly refined and unstable chemicals that could be h

...]] (sometimes also called '''motor spirit''') is a [[petroleum]]-derived [[liquid]] mixture consisting primarily of [[hydrocarbon]]s, used as [[fuel]] in [[i ...and [[thiophene]]s. Some contaminants, in particular [[mercaptans]] and [[hydrogen sulfide]] must be removed because they cause corrosion in engines.

...he world's first vehicle to run on such an engine that used a mixture of [[hydrogen]] and [[oxygen]] to generate [[energy]]. The design was not very successful ...articularly for mobile purposes in vehicles. Lenoir is said to have tested liquid fuel, such as [[alcohol]], in his stationary engines; but it does not appea

The [[fuel injector]] acts as the fuel-dispensing nozzle. It injects liquid fuel directly into the engine's air stream. In almost all cases this requir ...]]), [[gasoline]], [[ethanol]], [[methanol]], [[methane]] (natural gas), [[hydrogen]] or [[Petroleum diesel|diesel]]. The vast majority of fuel injection syste

...oils have also seen occasional use. A number of other hybrid vehicles use hydrogen fuel. The program was replaced by the hydrogen focused [[FreedomCAR]] initiative of George W. Bush's administration in 200

...d steam car. In 1826 [[Samuel Brown (engineer)|Samuel Brown]] tested his [[hydrogen]]-fuelled [[internal combustion engine]] by using it to propel a vehicle up Belgian-born [[Etienne Lenoir]]'s [[Hippomobile]] with a [[hydrogen gas]]-fuelled one-cylinder internal combustion engine made a test drive fro

...s no oxygen present at the cathode. The carbon cathode is protected by the liquid aluminium inside the cells. Nevertheless, cathodes do erode, mainly due to * AlH is produced when aluminium is heated at 1500 °C in an atmosphere of [[hydrogen]].

...ld missions because they must not be tilted lest the highly-toxic transfer liquid spills out. Unlike the safe cracker used in ''You Only Live Twice'', this d ; Hydrogen Fuel Cell Complex : An entire facility that is run by or possibly a large f