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单词 Stirling engine
释义
Stirling engine

Physics
  • A heat engine consisting of a hot cylinder and a cold cylinder separated by a regenerator acting as a heat exchanger. The cylinders enclose oscillating pistons. Heat is applied externally to the hot cylinder, causing the working fluid within it to expand and drive the piston. The fluid is cooled in the regenerator before entering the cold cylinder, where it is compressed by the piston and driven back to be heated in the regenerator before entering the hot cylinder again. Stirling engines, which were invented by Robert Stirling (1790–1878) in 1816, are silent and efficient but costly to produce. They have found limited use; interest in them revived in the 1960s.


Chemical Engineering
  • A type of heat engine that involves the cyclic compression and expansion of air or any other gas as the working fluid. As a closed thermodynamic system, it uses both a hot and cold cylinder separated by a regenerator, in which the working fluid is recycled around the engine. There is a net conversion of heat energy to mechanical work. The use of the regenerator as a form of internal heat exchanger and thermal store makes the Stirling engine distinct from other types of hot air engine. It was invented in 1816 by Scottish engineer Robert Stirling (1790–1878) and is noted for its quiet operation and high efficiency. There has been much recent interest in its redevelopment particularly for use in combined heat and power (CHP) plants.


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