1/2파장 열음향 냉동기의 성능 평가

The thermoacoustic refrigerator has not only considerable feasibility but also commercial usability, because it has high reliability, lower vibration, no moving pan, and can easily be constructed. So A thermoacoustic refrigerator, using a resonant standing acoustic wave. has been built. It employs a loudspeaker to sustain a standing wave in a resonance tube. in the air or nitrogen. filled tube, The stack of plates was along strip of 8cm-wide, 0.075mm-thick plastic sheet(Mylar), spirally wound to make a 40mm-diameter assembly 80mm long. and two heat exchanger are installed. The interaction of the compressed and expanded gas in the channels of the stack with the surface generates heat transport. In this study, the description of thermoacoustic refrigerator was presented and the performance measurements ,using Helium gas and air, was presented.