自然科学版 英文版
自然科学版 英文版
自然科学版 英文版

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中南大学学报(英文版)

Journal of Central South University

Vol. 16    No. 2    April 2009

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Identification of complex compliance for regenerator in thermoacoustic resonator system
ZHANG Chun-ping(张春萍)1, LIU Wei(刘 伟)1, WU Feng(吴 锋)2,
GUO Fang-zhong(郭方中)1, ZHANG Xiao-qing(张晓青)1

1. School of Energy and Power Engineering, Huazhong University of Science and Technology, Wuhan 430074, China;
2. School of Science, Wuhan Institute of Technology, Wuhan 430073, China

Abstract: In thermoacoustic system, the characteristic of complex compliance of a regenerator has a great influence on energy stored and dissipation of the whole engine. In order to investigate the performance of regenerators with different matrix geometries and materials coupled with different acoustic systems, an experimental measurement and analysis method was presented. By measuring the resonant frequency, the complex compliance and quality factor of five kinds of matrix were experimentally analyzed respectively in the system of loudspeaker-driven thermoacoustic resonator (TAR) with different lengths. The experimental results show that the real part of complex compliance of the regenerator with pin-array has a maximum value among the measured matrixes and its quality factor is the largest (28.222) with the least dissipation factor of 0.035 4. So the pin-array matrix is testified to behave more excellently on the energy conversion than other matrixes. Compared with other factors the complex compliance of a regenerator contributes more to the performance of a thermoacoustic system.

 

Key words: thermoacoustic; regenerator; resonant frequency; complex compliance; quality factor

中南大学学报(自然科学版)
  ISSN 1672-7207
CN 43-1426/N
ZDXZAC
中南大学学报(英文版)
  ISSN 2095-2899
CN 43-1516/TB
JCSTFT
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