Thermoacoustic Refrigeration

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Overview iA thermoacoustic refrigeration device employs a gas-vapor mixture as the working fluid. As a result, the refrigeration device operates according to a modified thermacoustic refrigeration cycle that adds a condensation-vaporization cycle to the thermoacoustic cycle. The resulting modified refrigeration cycle increasess the efficiency of the heat transport by harnessing the translational motion of the vapor, as well as the usual acoustic oscillation, to tranport the heat energy from one end of a thermal stack to the other. Summary It is accordingly an objective of the invention to provide a thermoacoustic refrigeration device that provides improved performance without a substantial increase in complexity. It is also an objective of the invention to provide a thermoacoustic refrigeration method that increases the heat transfer capability of the thermoacoustic refrigeration device by modifying the conventional thermoacoustic refrigeration cycle to inclide evaporation and condensation, thereby enlisting transltion of vapors as a mechanism for heat transfer in addition to the conventional acoustic heat transfer.