论文信息 - Thermoacoustically driven pulse tube refrigeration below 80K by introducing an acoustic pressure amplifier

Thermoacoustically driven pulse tube refrigeration below 80K by introducing an acoustic pressure amplifier

A copper tube of 3.3m in length and 8mm in inner diameter, acting as an acoustic pressure amplifier, was incorporated in a standing-wave thermoacoustically driven pulse tube refrigerator system. The enhancement of pressure ratio from 1.129 to 1.152 by the acoustic pressure amplifier has been obtained. As a result, a cooling temperature as low as 79.7K and a tripled coefficient of performance improvement at 120K were reached.

Guobang Chen | Tao Jin | Ke Tang | Rui Bao | Weihua Cao

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