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ZJUS-A
Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering)  2007, Vol. 8 Issue (9): 1452-1456    DOI: 10.1631/jzus.2007.A1452
Civil Engineering & Mechanics     
Influence of input acoustic power on regenerator’s performance
TANG Ke, HUANG Zhong-jie, JIN Tao, BAO Rui, CHEN Guo-bang
Institute of Refrigeration and Cryogenics, Zhejiang University, Hangzhou 310027, China
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Abstract  Performance of a pulse tube cooler significantly depends on the efficient operation of its regenerator. Influence of input acoustic power on regenerator’s performance is simulated and analyzed with simple harmonic analysis method. Given regenerator’s dimensions and pressure ratio, there is an optimal input acoustic power for achieving a highest coefficient of performance, due to a compromise between relative time-averaged total energy flux in regenerator and relative acoustic power at regenerator’s cold end. Additionally, optimal dimensions of regenerator are also estimated and presented for different input acoustic powers. The computed optimal diameter obviously increases with increase of input acoustic power, while the optimal length decreases slightly, and as a result, a larger input acoustic power requires a smaller aspect ratio (length over diameter).

Key words： Regenerator      Pulse tube cooler      Simple harmonic analysis     
Received: 28 February 2007     
CLC:  TB618  
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TANG Ke
HUANG Zhong-jie
JIN Tao
BAO Rui
CHEN Guo-bang
Cite this article:

TANG Ke, HUANG Zhong-jie, JIN Tao, BAO Rui, CHEN Guo-bang. Influence of input acoustic power on regenerator’s performance. Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering), 2007, 8(9): 1452-1456.

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http://www.zjujournals.com/xueshu/zjus-a/10.1631/jzus.2007.A1452     OR     http://www.zjujournals.com/xueshu/zjus-a/Y2007/V8/I9/1452

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