In thermoacoustic refrigerators, the acoustic energy provided by an acoustic source is used to pump heat from a cold reservoir. Such refrigerators work with benign fluids, and may possibly be miniaturized, offering an application to microelectronic refrigeration. The linear theory frequently used to predict thermoacoustic refrigerators performance, because it relies on the simplification of the governing equations, can not account for all the phenomena involved in thermoacoustic heat pumping. In the present work, the full compressible two-dimensional Navier-Stokes equations are solved numerically, and the flow and heat transfer above a plate immerged in an acoustic standing wave are computed. Some phenomena, which are not taken into account in the linear theory, are observed. Non-harmonic temperature variations are found and are explained using the results of a former nonlinear analysis. The effect of vortical motions at the extremity of the stack plates on heat transfer is studied.
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ASME 7th Biennial Conference on Engineering Systems Design and Analysis
July 19–22, 2004
Manchester, England
ISBN:
0-7918-4173-1
PROCEEDINGS PAPER
Computation of Nonlinear and Edge Effects in a Thermoacoustic Refrigerator Available to Purchase
David Marx,
David Marx
Ecole Centrale de Lyon, Ecully, France
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Philippe Blanc-Benon
Philippe Blanc-Benon
Ecole Centrale de Lyon, Ecully, France
Search for other works by this author on:
David Marx
Ecole Centrale de Lyon, Ecully, France
Philippe Blanc-Benon
Ecole Centrale de Lyon, Ecully, France
Paper No:
ESDA2004-58412, pp. 253-262; 10 pages
Published Online:
November 11, 2008
Citation
Marx, D, & Blanc-Benon, P. "Computation of Nonlinear and Edge Effects in a Thermoacoustic Refrigerator." Proceedings of the ASME 7th Biennial Conference on Engineering Systems Design and Analysis. Volume 1. Manchester, England. July 19–22, 2004. pp. 253-262. ASME. https://doi.org/10.1115/ESDA2004-58412
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