Exergetic efficiency optimization of a thermoacoustic cooler

Abstract A heat transfer model with a complex exponent between a thermoacoustic cooler and its surrounding heat reservoirs is established in the current paper. Both the real part and the imaginary part of the heat transfer exponent strongly affect the optimal performance of the cooler. The exergetic efficiency and the cooling load decrease with an increase in the imaginary part of the complex exponent when the real part is fixed. The optimal performance zone of the thermoacoustic cooler is obtained by numerical analysis. The results obtained herein may be useful for the selection of operation parameters for a real thermoacoustic cooler.

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