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Experimental and theoretical investigation on frequency characteristic of loudspeaker-driven thermoacoustic refrigerator |
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| Authors: | Qiu Tu V Gusev M Bruneau Chunping Zhang Ling Zhao Fangzhong Guo |
| Affiliation: | aLaboratoire d’Acoustique, Université du Maine, 72085 Le Mans Cedex 9, France;bCryogenics Laboratory, Huazhong University of Science and Technology, Wuhan 430074, China;cLaboratoire de Physique de l’Etat Condensé, Université du Maine, 72085 Le Mans Cedex 9, France |
| Abstract: | In this paper, the frequency characteristic of loudspeaker-driven thermoacoustic refrigerator (TAR) and the influence factors were investigated theoretically and experimentally. Experimental results under different conditions show that a narrow transmission frequency band of TAR exists to generate strong oscillation and cause significant thermoacoustic effect, and TAR achieves optimum performance at the resonance frequency. The frequency characteristic is determined by combined network elements of TAR. Then the analytical model was built to validate the experimental results. It provides a coupling method for design of loudspeaker-driven TAR system. |
| Keywords: | Loudspeaker-driven thermoacoustic refrigerator Frequency characteristic Electro-acoustic efficiency Transmission frequency band Quality factor |
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