Design optimization of parallel plate heat exchangers in thermoacoustic devices
Keywords:Machine design, Optimization, Photoacoustic effect, Plates (structural components), Refrigerators, Thermodynamics, Acoustic drivers, Plate thickness, Second law of thermodynamics, Thermoacoustic devices
AbstractParallel 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%.
How to Cite
Copyright on articles is held by the author(s). The corresponding author has the right to grant on behalf of all authors and does grant on behalf of all authors, a worldwide exclusive licence (or non-exclusive license for government employees) to the Publishers and its licensees in perpetuity, in all forms, formats and media (whether known now or created in the future)
i) to publish, reproduce, distribute, display and store the Contribution;
ii) to translate the Contribution into other languages, create adaptations, reprints, include within collections and create summaries, extracts and/or, abstracts of the Contribution;
iii) to exploit all subsidiary rights in the Contribution,
iv) to provide the inclusion of electronic links from the Contribution to third party material where-ever it may be located;
v) to licence any third party to do any or all of the above.