Browse > Article
http://dx.doi.org/10.9726/kspse.2012.16.1.038

Performance analysis of a R744 and R404A cascade refrigeration system with internal heat exchanger  

Oh, H.K. (부경대학교 냉동공조공학과)
Son, C.H. (부경대학교 냉동공조공학과)
Publication Information
Journal of Power System Engineering / v.16, no.1, 2012 , pp. 38-43 More about this Journal
Abstract
This paper describes an analysis on performance of R744-R404A cascade refrigeration system with internal heat exchanger to optimize the design for the operating parameters of the system. The operating parameters considered in this study include subcooling and superheating degree, internal heat exchanger and compression efficiency, evaporating and condensing temperature in the R744 low- and R404A high-temperature cycle and temperature difference of cascade heat exchanger. The main results are summarized as follows : COP of cascade refrigeration system increases with the increasing of compression efficiency, but decreases with the increasing temperature difference of cascade heat exchanger. Also, the COP increases with the increasing of internal heat exchanger efficiency in high-temperature cycle, but decreases with that in low-temperature cycle. Therefore, internal heat exchanger efficiency, compressor efficiency and temperature difference of cascade heat exchanger on R744-R404A cascade refrigeration system have an effect on the COP of this system.
Keywords
Carbon dioxide; Cascade refrigeration system; Internal heat exchanger;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 Park, S. N. and Kim, M. S., 1999, "Performance of autocascade refrigeration system using carbon dioxide and R134a", Korea J. of Air-Conditioning and Refrigeration Engineering, Vol. 11, No. 6, pp. 880-890.   과학기술학회마을
2 Chaichana, C., Aye, L. and Charters, W. W. S., 2003, "Natural working fluids for solar-boosted heat pumps." Int. J. Refrigeration Vol. 26, pp. 637-643.   DOI   ScienceOn
3 Lee, T. S., Liu, C. H. and Chen, T. W., 2006, "Thermodynamic analysis of optimal condensing temperature of cascade condenser in $CO_{2}$/$NH_{3}$ cascade refrigeration systems.", Int. J. Refrigeration Vol. 29, pp. 1100-1108.   DOI   ScienceOn
4 Bhattacharyya, S., Mukhopadhyay, S., Kumar, A. Khurana, R. K. and Sarkar, J., 2005, "Optimization of a $CO_{2}$-C3H8 cascade system for refrigeration and heating.", Int. J. Refrigeration Vol. 28, pp. 1284-1292.   DOI   ScienceOn
5 Sawalha, S., 2005, "Using $CO_{2}$ in supermarket refrigeration". ASHRAE J. Vol. 47, No. 8, pp. 26-30.
6 Wilson, I and Maier, D., 2006, "Carbon dioxide for use as a refrigerant. In: Refrigeration Science and Technology", Proceedings, IIR-IRHACE Conference, Innovative Equipment and Systems for Comfort and Food Preservation. The University of Auckland, pp. 305-311.
7 Bansal, P. K. and Jain, S., 2007, "Cascade systems: past, present, and future.", ASHRAE Trans. Vol. 113, No. 1, pp. 245-252 (DA-07-027).
8 Winkler, J. M., Aute, V., Radermacher, R. and Shapiro, D., 2008, "Simulation and Validation of a R404A/$CO_{2}$ cascade refrigeration system". Proceedings of the international refrigeration and air conditioning conference at Purdue. 12 (1), p. 2273.
9 Rees, B., Rohrer, C., Shapiro, D. and Trachta, J., 2007, "Performance testing and comparison of liquid overfeed and cascade $CO_{2}$ systems with R404A primary". International congress of refrigeration. 22, ICR07-B2-123.
10 Knudsen, H. J. H. and Pachai, A. C., 2004, "Energy Comparisons between carbon dioxide cascade systems and state of the art R404A systems". Refrigeration science and technology. 01511637(2), p. 10.
11 EES: Engineering Equation Solver, 2006. fChart Software Inc.
12 Nicola, G. D. et al., 2005, "Blends of carbon dioxide and HFCs as working fluids for the low-temperature circuit in cascade refrigerating systems", Int. J. Refrigeration Vol. 28, pp. 130-140.   DOI   ScienceOn
13 Nasruddin, Darwin Rio Budi Syaka, 2009, "Thermodynamics Analysis of Refrigerant Selection in Cascade Refrigeration System", 1st International Conference of Saving Energy in Refrigeration and Air- Conditioning, pp. 55-62.
14 Getu, H. M. and Bansal, P. K., 2008, "Thermodynamic analysis of an R744-R717 cascade refrigeration system", Int. J. Refrigeration Vol. 31, pp. 45-54.   DOI   ScienceOn
15 윤린, 조용, "슈퍼마켓용 $CO_{2}$/$NH_{3}$ 캐스케이드 시스템과 $CO_{2}$ 2단 시스템의 성능평가", 대한설비공 학회 2010 하계학술발표대회 논문집, pp. 824-829.