hydraulic turbine

[hī′drȯ·lik ′tər·bən] (mechanical engineering) A machine which converts the energy of an elevated water supply into mechanical energy of a rotating shaft.

Hydraulic turbine

A machine which converts the energy of an elevated water supply into mechanical energy of a rotating shaft. Most old-style waterwheels utilized the weight effect of the water directly, but all modern hydraulic turbines are a form of fluid dynamic machinery of the jet and vane type operating on the impulse or reaction principle and thus involving the conversion of pressure energy to kinetic energy. The shaft drives an electric generator, and speed must be of an acceptable synchronous value. See Generator, Impulse turbine, Turbine

Efficiency of hydraulic turbine installations is always high, more than 85% after all allowances for hydraulic, shock, bearing, friction, generator, and mechanical losses. Material selection is not only a problem of machine design and stress loading from running speeds and hydraulic surges, but is also a matter of fabrication, maintenance, and resistance to erosion, corrosion, and cavitation pitting.

Pumped-storage hydro plants have employed various types of equipment to pump water to an elevated storage reservoir during off-peak periods and to generate power during on-peak periods where the water flows from the elevated reservoir through hydraulic turbines.

单词	hydraulic turbine
释义	hydraulic turbine hydraulic turbine [hī′drȯ·lik ′tər·bən] (mechanical engineering) A machine which converts the energy of an elevated water supply into mechanical energy of a rotating shaft. Hydraulic turbine A machine which converts the energy of an elevated water supply into mechanical energy of a rotating shaft. Most old-style waterwheels utilized the weight effect of the water directly, but all modern hydraulic turbines are a form of fluid dynamic machinery of the jet and vane type operating on the impulse or reaction principle and thus involving the conversion of pressure energy to kinetic energy. The shaft drives an electric generator, and speed must be of an acceptable synchronous value. See Generator, Impulse turbine, Turbine Efficiency of hydraulic turbine installations is always high, more than 85% after all allowances for hydraulic, shock, bearing, friction, generator, and mechanical losses. Material selection is not only a problem of machine design and stress loading from running speeds and hydraulic surges, but is also a matter of fabrication, maintenance, and resistance to erosion, corrosion, and cavitation pitting. Pumped-storage hydro plants have employed various types of equipment to pump water to an elevated storage reservoir during off-peak periods and to generate power during on-peak periods where the water flows from the elevated reservoir through hydraulic turbines.
随便看	curtis benjamin robbins curtis, benjamin robbins curtis business and professional associates curtis, charles curtis creek trout rearing station curtis, cyrus herman k. curtis, cyrus hermann kotzschmar curtis, dan curtis, edward curtis, edward sheriff curtis, george ticknor curtis, george william curtis hixon park curtisia curtisiaceae curtisia dentata curtis institute curtis institute for music curtis institute of music curtis joseph curtis lecture halls and ross building curtis lemay curtis lester mendelson curtis, natalie curtiss