SET Proceedings 2978-4387 Caravel Press 10.65582/set.2005.117 2005.117 Experimental Study on Temperature Distribution of Two-Stage Cascade Vapor-Compression Cycle RahadiyanLubi KimYeong-Geun JeongHyo-Min ChungHan-Shik 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 23092005 4 1 978-7-112-07718-2 526 531 23 September 2005 © 2005 Copyright WSSET 2005

This paper presents the experimental study on temperature distribution of two-stage cascade vapor-compression system for achieving super-low temperature. On this study, two different types of Halocarbon refrigerants are utilized, HCFC-22 and HFC-23. Four successive trials were conducted for different outlet pressure of low stage compressor. By changing mass of refrigerant, low-stage compressor outlet is adjusted from 6 bar to 21 bar. The lowest temperature achieved by this arrangement is down to -85°C at 16 bar of low stage compressor outlet. It is also found that at the range of 6 to 16 bars, evaporation temperature decrease as compressor outlet-pressure increase.

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