응축기-증발기 최적설계를 통한 이원냉동 사이클에 관한 연구
Study on the Cascade Refrigeration Cycle through the Optimal Design of Condenser-Evaporator
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Abstract The cascade refrigeration cycle system has been used mainly to obtain the ultra-lowtemperature. In this study, the effects of internal and outdoor temperatures at chamber on the heatcapacity of fin-tube heat exchangers were examined. In addition, refrigerant line patterns as well asrefrigerant type for cascade cycle were optimized. The results in this study show that the refrigerant linepatterns have greater effect on the sensible capacity than the total capacity. Also, the condenser heatrelease rate for R717-R744 cycle varies the ratio of 46 % with outdoor temperature by comparing withthat of 24% for R134a-R410a cycle.
Abstract
Abstract The cascade refrigeration cycle system has been used mainly to obtain the ultra-lowtemperature. In this study, the effects of internal and outdoor temperatures at chamber on the heatcapacity of fin-tube heat exchangers were examined. In addition, refrigerant line patterns as well asrefrigerant type for cascade cycle were optimized. The results in this study show that the refrigerant linepatterns have greater effect on the sensible capacity than the total capacity. Also, the condenser heatrelease rate for R717-R744 cycle varies the ratio of 46 % with outdoor temperature by comparing withthat of 24% for R134a-R410a cycle.
참고문헌 (13)
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