2001•The Proceedings of the Symposium on Stirlling CycleOpen access

D13 Basic Performance of Thermoacoustic Prime Mover

Shuliang ZHOU, Yu Hiresaki, Yoichi Matsubara, Hiroyuki Sugita, S. Toyama

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Abstract

Compared with traveling wave thermoacoustic prime mover, standing wave thermoacoustic prime mover has the merit of stability as there is no closed loop in the system. The heat->work conversion efficiency of standing wave type engine is lower than that of traveling wave type theoretically. A standing wave thermoacoustic prime mover has been built to measure its efficiency accurately. Numerical calculations were carried out and the results coincided with experimental results well. Calculations also show that there exists an optimum heat transfer area of stack to get the best efficiency, and also it is true to heat exchangers to improve the efficiency and increase the output power.

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Compared with traveling wave thermoacoustic prime mover, standing wave thermoacoustic prime mover has the merit of stability as there is no closed loop in the system. The heat->work conversion efficiency of standing wave type engine is lower than that of traveling wave type theoretically. A standing wave thermoacoustic prime mover has been built to measure its efficiency accurately. Numerical calculations were carried out and the results coincided with experimental results well. Calculations also show that there exists an optimum heat transfer area of stack to get the best efficiency, and also it is true to heat exchangers to improve the efficiency and increase the output power.

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Available abstract

Compared with traveling wave thermoacoustic prime mover, standing wave thermoacoustic prime mover has the merit of stability as there is no closed loop in the system. The heat->work conversion efficiency of standing wave type engine is lower than that of traveling wave type theoretically. A standing wave thermoacoustic prime mover has been built to measure its efficiency accurately. Numerical calculations were carried out and the results coincided with experimental results well. Calculations also show that there exists an optimum heat transfer area of stack to get the best efficiency, and also it is true to heat exchangers to improve the efficiency and increase the output power.

Key concepts: Prime mover, Thermoacoustic heat engine, Standing wave, Thermoacoustics, Stack (abstract data type), Heat exchanger, Prime (order theory), Work (physics)

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