Design, Development, and Operation of a Thermo-Acoustic Refrigerator Cooling to below −60 °C
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A thermoacoustic cooler, using a resonant standing acoustic wave, has been built. It employs a loudspeaker to sustain a standing wave in a resonance tube. In the helium-filled tube, a layered parallel-plate structure, called stack, and two heat exchangers are installed. The interaction of the compressed and expanded gas in the channels of the stack with the surface generates heat transport. A description of the cooler is presented, together with the first performance measurements using two different stacks, two different average pressures, and different dynamic pressures.
KeywordsHeat Exchanger Dynamic Pressure Heat Load Pulse Tube Acoustic Resonator
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