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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)
Article
  • 67 Downloads

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 

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References

  1. [1]
    SUGITA H, MATSUBARA Y, KUSHINO A, OHNISHI T, KOBAYASHI H, DAI W. Experimental study on thermally actuated pressure wave generator for space cryocooler [J]. Cryogenics, 2004, 44: 431–437.CrossRefGoogle Scholar
  2. [2]
    BACKHAUS S, SWIFT G W. A thermoacoustic-stirling heat engine: Detailed study [J]. J Acoust Soc Am, 2000, 107(6): 3148–3166.CrossRefGoogle Scholar
  3. [3]
    LAFARGE D, LEMARINIER P. Dynamic compressibility of air in porous structures at audible frequencies [J]. J Acoust Soc Am, 1997, 102(4): 1995–2006.CrossRefGoogle Scholar
  4. [4]
    RALPH T M, WALTER C B, BRANDON D T. Measurements and empirical model of the acoustic properties of reticulated vitreous carbon [J]. J Acoust Soc Am, 2005, 117(2): 536–544.CrossRefGoogle Scholar
  5. [5]
    TARNOW V. Dynamic measurements of the elastic constants of glass wool [J]. J Acoust Soc Am, 2005, 118(6): 3672–3678.CrossRefGoogle Scholar
  6. [6]
    TIJANI M E H, SPOELSTRA S, BACH P W. Thermal-relaxation dissipation in thermoacoustic system [J]. Applied Acoustics, 2004, 65: 1–13.CrossRefGoogle Scholar
  7. [7]
    GUO Fang-zhong, LI Qing. Heat dynamics [M]. Wuhan: Huazhong University of Science and Technology Press, 2007: 242–245. (in Chinese)Google Scholar
  8. [8]
    SWIFT G W. Thermoacoustics: A unifying perspective for some engines and refrigerators [M]. 5th ed. New Mexico: Los Alamos National Laboratory, 2001: 69–70.Google Scholar
  9. [9]
    WILLEN L A. Measurements of scaling properties for acoustic propagation in a single pore [J]. J Acoust Soc Am, 1997, 101(3): 1388–1397.CrossRefGoogle Scholar
  10. [10]
    WILLEN L A. Measurements of thermoacoustic functions for single pores [J]. J Acoust Soc Am, 1998, 103(3): 1406–1412.CrossRefGoogle Scholar
  11. [11]
    TARNOW V. Measurement of sound propagation in glass wool [J]. J Acoust Soc Am, 1995, 97(4): 2272–2281.CrossRefGoogle Scholar
  12. [12]
    LLINSKII Y A, LIPKENS B, ZABOLOTSKAYA E A. Energy losses in an acoustical resonator [J]. J Acoust Soc Am, 2001, 109(5): 1859–1870.CrossRefGoogle Scholar
  13. [13]
    LIU Yi-cai, ZHOU Jie-min, ZHOU Nai-jun, LIAO Sheng-ming. Investigation on porous frequency of regenerator of microminiature thermoacsoutic refrigerator [J]. Journal of Central South University of Technology, 2005, 12(Suppl.1): 253–255.CrossRefGoogle Scholar
  14. [14]
    ZHANG Chun-ping, WU Feng, DING Guo-zhong, GUO Fang-zhong. Measurements of quality factor in thermoacoustic resonator system [J]. Cryogenics and Superconductivity, 2007, 35(5): 380–382. (in Chinese)Google Scholar
  15. [15]
    SWIFT G W. Thermoacoustic engines [J]. J Acoust Soc Am, 1988, 84(4): 1145–1180.CrossRefGoogle Scholar
  16. [16]
    FLOYD T L. Electric circuits fundamentals [M]. New Jersey: Prentice Hall, 2001: 552–554.Google Scholar

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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