SET Proceedings 2978-4387 Caravel Press 10.65582/set.2007.042 2007.042 The Characteristic of Propane-Ethane as Refrigerant in the Cascade Refrigeration System KimPil Hwan DjajadiwinataEldwin JeongHyo-Min ChungHan-Shik KimChul-Su Graduate School, Department of Mechanical and Precision Engineering, Gyeongsang National University, 445 Impyeong-dong, Gyeongsang-namdo 650-160, Korea School of Mechanical and Aerospace Engineering, the Institute of Marine Industry, Gyeongsang National University, 445 Impyeong-dong, Gyeongsang-namdo 650-160, Korea KTENG Co., Ltd. Sungnam-si, Gyeonggi-do, South Korea 462-807 05092007 6 1 978-1-995850-09-2 255 261 5 September 2007 © 2007 Copyright WSSET 2007

Nowadays, demands on super low temperature condition for industrial and commercial uses are thriving. Considering of its wide application in the present and the future, study of the super-low temperature refrigeration system should be actively carried out. This study is aimed to investigate refrigeration capacity and coefficient of performance(COP) of the cascade refrigeration system, as well as to get the system which can reach evaporator temperature of -70°C. For this purpose, R290 and R170 are charged in high stage and low stage respectively. Finally the characteristics of system using R290 and R170 will be proposed.

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