A gas generator is a technical plant for the gasification of fuel.
To gasify solid fuels such as coal, brown coal or coke, are usually employed a closed shaft furnace. By introducing air or oxygen, possibly as a mixture with water vapor, the fuel is converted mainly to producer gas with a high proportion of carbon monoxide or water gas with high hydrogen content. ( See also coal gasification)
In liquid rocket engines of the type used to produce a large volume of fuel from the propellant gas which drives the turbo pumps of the motors. If used with the catalytic decomposition of a substance (eg hydrogen peroxide ) are used it is called cold or cool drive, though hydrogen peroxide formed during steam - oxygen mixture reaches a temperature of 500 ° C. By injection and ignition of the fuel, the oxygen contained can also be used. One then speaks of a hot drive. Also of hot drive is when instead of the decomposition of an auxiliary directly a part of the fuel is burned to drive the turbopumps. This functional principle corresponds partly to classic jets, whereby the term of the gas generator combustion chamber and partially also for compressors in jet engines (see gas turbine ) is used.
The propeller torpedoes are powered by gas generators. Here also is hydrogen peroxide used.
In the airbag inflator of a tablet of sodium azide is decomposed to nitrogen.
- Fuel gas technology