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A thermoacoustic refrigeration device (TAR) includes an acoustic wave generation device arranged directed to the channel of a hollow tube, and a regenerator provided at a predetermined position in the channel of the tube. A temperature gradient is obtained across the regenerator by an acoustic wave emitted from the acoustic wave generation device. Therefore, a TAR realizing a gas stirling cycle approximating the Carnot cycle which is an ideal gas cycle, and realizing simplification of the structure and high efficiency of the device is provided.

Thermoacoustic refrigeration equipment (TAR), wherein compression of the refrigerant is provided by a standing acoustic wave compressor, is introduced in this article. The standing acoustic wave compressor is endued an added task of supercooling the refrigerant, so that efficiency losses due to flashing are reduced. Simultaneously, a control circuit can be added to modify the discharge pressure in response to changing operating conditions, thereby maintaining the discharge pressure needed for condensation minimum at any time. Thus, the power consumption of the standing acoustic wave compressor is reduced and system efficiency is improved.