Design methodology of standing-wave thermoacoustic refrigerator: theoretical analysis

International Journal of Air-Conditioning and Refrigeration - Tập 31 - Trang 1-13 - 2023
Mohanad Q. Kamil1, Samir Gh. Yahya1, Itimad D. J. Azzawi1
1Department of Mechanical Engineering, College of Engineering, University of Diyala, Baqubah, Iraq

Tóm tắt

Thermoacoustic refrigeration systems are one of the best alternative solutions for conventional refrigeration systems that are harmful to the environment and humans due to global warming and ozone layer depletion issues. Thermoacoustic technology can be considered a renewable and clean technology with a promising future for its many advantages. A thermoacoustic refrigerator converts acoustic energy to thermal energy (creating a cooling effect). In the present research, the focus is on the design of a standing-wave thermoacoustic refrigerator driven by an ordinary loudspeaker using the numerical simulation program DELTAEC with the concern of building the apparatus at a low cost. In addition, investigating the influence of some crucial parameters on cooling power and thermal/overall performance. Hence, the designed thermoacoustic refrigerator performed well in respect of cooling power and coefficient of performance. It has achieved a cooling power of 134.34 W with a temperature difference between the ambient and cold heat exchangers of 25 K at a COP of 1.956 and the overall efficiency (electrical power converted into cooling power) amounted to 113.43%. The achieved cooling power and COP could be significant when compared to others’ results.

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International Journal of Air-Conditioning and Refrigeration

Tập 31

1-13

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