Identification of complex compliance for regenerator in thermoacoustic resonator system

  • Chun-ping Zhang (张春萍)Email author
  • Wei Liu (刘 伟)
  • Feng Wu (吴 锋)
  • Fang-zhong Guo (郭方中)
  • Xiao-qing Zhang (张晓青)


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 


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Copyright information

© Central South University Press and Springer-Verlag GmbH 2009

Authors and Affiliations

  • Chun-ping Zhang (张春萍)
    • 1
    Email author
  • Wei Liu (刘 伟)
    • 1
  • Feng Wu (吴 锋)
    • 2
  • Fang-zhong Guo (郭方中)
    • 1
  • Xiao-qing Zhang (张晓青)
    • 1
  1. 1.School of Energy and Power EngineeringHuazhong University of Science and TechnologyWuhanChina
  2. 2.School of ScienceWuhan Institute of TechnologyWuhanChina

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