Turbine
Uses

A large proportion of the world's electrical power is generated by turbo generators.

Turbines are used in gas turbine engines on land, sea and air.

Turbochargers are used on piston engines.

Gas turbines have very high power densities (i.e. the ratio of power to mass, or power to volume) because they run at very high speeds. The Space Shuttle main engines used turbopumps (machines consisting of a pump driven by a turbine engine) to feed the propellants (liquid oxygen and liquid hydrogen) into the engine's combustion chamber. The liquid hydrogen turbopump is slightly larger than an automobile engine (weighing approximately 700 lb) with the turbine producing nearly 70,000 hp (52.2 MW).

Turboexpanders are used for refrigeration in industrial processes.
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