Abstract
Refrigerated truck is indispensable transportation for food and medicine. However, the truck has been using the harmful substance such as CFC or HCFC. Therefore, an alternative cooler is essential such as thermoacoustic refrigerator. The refrigerator is driven by the thermoacoustic heat engine (prime mover), so the prime mover can convert the thermal or waste heat into the acoustic energy for driving the refrigerator. There are some parameters that can improve the efficiency of the refrigerator system. The aim is to investigate the impact of prime mover regenerator radius on the efficiency and characteristic of acoustic field. It was found that the best performance of the whole refrigeration system was achieved when the radius is 0.68. The engine and cooler efficiency are 84% and 38%, respectively. In addition, the acoustic field characteristic was also analyzed to elucidate the mechanism in the refrigerator system.
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