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http://dx.doi.org/10.9726/kspse.2015.19.6.082

Performance Analysis of Two-stage Compression Refrigeration System with Internal Heat Exchanger Applied Various Refrigerants  

Yoon, Jung-In (Department of Refrigeration and Air Conditioning, Pukyong University)
Heo, Seong-Kwan (Department of Refrigeration and Air Conditioning, Pukyong University undergraduate)
Je, Jae-Myun (Department of Refrigeration and Air Conditioning, Pukyong University undergraduate)
Jeon, Min-Ju (Department of Refrigeration and Air Conditioning, Pukyong University undergraduate)
Son, Chang-Hyo (Department of Refrigeration and Air Conditioning, Pukyong University)
Moon, Jung-Hyun (Korea Research Institute of Ships & Ocean Engineering)
Publication Information
Journal of Power System Engineering / v.19, no.6, 2015 , pp. 82-88 More about this Journal
Abstract
In this paper, cycle performance analysis of two-stage compression and one-stage expansion refrigeration system applied various refrigerants is presented to offer the basic design data for the operating parameters of the system. The operating parameters considered in this study include degree of superheating and subcooling, compressor efficiency, evaporation temperature, condensing temperature, mass flow rate ration into inter-cooler, effectiveness of internal heat exchanger. The main results were summarized as follows : The COP of two-stage compression and 1-stage expansion refrigeration system increases with the increasing subcooling, mass flow rate ration of inter-cooler, evaporation temperature, but decreases with the increasing condensing temperature and superheating degree. Therefore, subcooling degree, mass flow rate ratio of inter-cooler of two-stage compression and 1-stage expansion using substitute refrigerant have an effect on COP of this system. The COP of alternative refrigerants was higher than the COP of R22 in this study, although the COP of some mixed refrigerants were lower than COP of R22.
Keywords
Two-stage compression and one-stage expansion refrigeration system; Alternative refrigerant; Internal heat exchanger; COP; Mass flow-rate;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
연도 인용수 순위
1 K. S. Roh, 2012, "Performance Analysis of 2-Stage Compression and 1-Stage Expansion Refrigeration System using Alternative Natural Refrigerants", Journal of the Korean Institute of Gas, Vol. 16, No. 1.
2 H. K. Ku, 2014, "Performance Analysis of R-1270(Propylene) Refrigeration ystem Using Internal Heat Exchanger", Journal of the Korean Society for Power System Engineering, Vol. 18, No. 4, pp. 36-42.
3 K. S. Rog and J. R. Kim, 2013, "Performance Analysis of Two-stage Compression and Two-stage Expansion Refrigeration System using Freon Refrigerants", Vol. 25, No. 2, pp. 301-306.   DOI
4 C. W. Park, D. G. Lee, S. K. Choi and C. D. Kang, 2009, "Two-Stage compression cycle operating with alternative refrigerant using by EES program", pp. 533-538.