Design optimization of parallel plate heat exchangers in thermoacoustic devices

Authors

  • Hadi Babaei Dept. of Mechanical and Industrial Engineering, Concordia University, 1455 De Maisonneuve Blvd. W., Que. H3G 1M8, Canada
  • Kamran Siddiqui Dept. of Mechanical and Industrial Engineering, Concordia University, 1455 De Maisonneuve Blvd. W., Que. H3G 1M8, Canada

Keywords:

Machine design, Optimization, Photoacoustic effect, Plates (structural components), Refrigerators, Thermodynamics, Acoustic drivers, Plate thickness, Second law of thermodynamics, Thermoacoustic devices

Abstract

Parallel plate heat exchangers of a thermoacoustic refrigerator with an acoustic driver and a heat-driven thermoacoustic refrigerator are optimized by using the second law of thermodynamics and the computer code DeltaE which solves the one dimensional wave equation in a geometry. In the first simulation by DeltaE, the blockage ratio of the heat exchangers is assumed equal to that of the stack. The porosity of the heat exchangers is optimized through the second law analysis and by assuming the plate thickness of the heat exchangers equal to their length. The optimized blockage ratio for the cold heat exchanger and ambient heat exchanger are estimated 0.56 and 0.345. The results show that with the optimized heat exchangers whose porosity is less than that of the stack, the overall performance of the thermoacoustic refrigerator is increased by 16%.

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Published

2007-09-01

How to Cite

1.
Babaei H, Siddiqui K. Design optimization of parallel plate heat exchangers in thermoacoustic devices. Canadian Acoustics [Internet]. 2007 Sep. 1 [cited 2021 Sep. 27];35(3):170-1. Available from: https://jcaa.caa-aca.ca/index.php/jcaa/article/view/1955

Issue

Section

Proceedings of the Acoustics Week in Canada