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Read the text: Turbine thermal power plants
A turbine is a rotary engine that extracts energy from a fluid flow. Claude Burdin (1788-1873) coined the term from the Latin "turbo", or vortex, during an 1828 engineering competition. Benoit Fourneyron (1802-1867), a student of Claude Burdin, built the first practical water turbine.
The simplest turbines have one moving part, a rotor assembly, which is a shaft with blades attached. Moving fluid acts on the blades, or the blades react to the flow, so that they rotate and impart energy to the rotor. Early turbine examples are windmills and water wheels.
Gas, steam, and water turbines have a casing around the blades that contains and controls the working fluid. Credit for invention of the modern steam turbine is given to British Engineer Sir Charles Parsons (1854 - 1931).
A device similar to a turbine but operating in reverse is a compressor or pump. The axial compressor in many gas turbine engines is a common example.
A turbo generator is a turbine directly connected to an electric generator for the generation of electric power. Large steam powered turbo generators (steam turbine generators) provide the majority of the world's electricity and are also used by steam powered, turbo-electric ships.
Smaller turbo-generators with gas turbines are often used as auxiliary power units. For base loads diesel generators are usually preferred, since they offer much better fuel-efficiency and are also more reliable, but on the other hand they are much heavier and need more space.
The efficiency of larger gas turbine plants can be enhanced, if the hot exhaust gases are used to generate steam which drives another turbo generator. Turbo generators were also used on steam locomotives as a power source for coach lighting and heating systems.
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