Abstract
This paper describes a performance test of Stirling cooler developed for ultra-low temperature application. A Stirling cooler has advantages of low GWP refrigerant, high efficiency and wide operating range compared with conventional ultra low temperature refrigerator. In this research, the Stirling cooler driven by a linear compressor is developed and the cooling performance test is performed at -100°C and -150°C. In cooling performance test, the input voltage is adjusted in the range from 150 to 210 Vrms. With the measured data, it is investigated the dynamic behavior and cooling performance of the developed Stirling cooler. The developed cooler shows 362 W of cooling capacity and 0.480 of COP at -100°C. At -150°C of the cold-end temperature, the cooling capacity and COP are 159 W and 0.186, respectively.
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