동력기계공학회지 (Journal of Power System Engineering)

  • 제18권1호
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  • Pages.57-62
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  • 2014
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  • 2713-8429(pISSN)
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  • 2713-8437(eISSN)
한국동력기계공학회 (The Korean Society for Power System Engineering)
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R410A용 2단 압축 1단 팽창 냉동시스템의 성능 분석

Performance Comparison of Two-stage Compression Refrigeration System Using R404A

  • 윤정인 (부경대학교 냉동공조공학과) ;
  • 최광환 (부경대학교 냉동공조공학과) ;
  • 손창효 (부경대학교 냉동공조공학과) ;
  • 조환 (부경대학교 냉동공조공학과 대학원)
  • Yoon, Jung-In (Department of Refrigeration and Air-conditioning Engineering, PuKyung National University) ;
  • Choi, Kwang-Hwan (Department of Refrigeration and Air-conditioning Engineering, PuKyung National University) ;
  • Son, Chang-Hyo (Department of Refrigeration and Air-conditioning Engineering, PuKyung National University) ;
  • Jo, Hwan (Department of Refrigeration and Air-conditioning Engineering, PuKyung National University)
  • 투고 : 2013.09.25
  • 심사 : 2013.11.12
  • 발행 : 2014.02.28
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초록

This paper present the performance characteristics of R404A two-stage compression refrigeration system. The operating parameters considered in this study include evaporating and condensing temperature, subcooling and superheating degree, compressor efficiency. The main results were summarized as follows: The COP of two-stage compression refrigeration system using R404A has an effect on the variation of evaporation temperature, condensation temperature, subcooling degree and compressor efficiency, but not an effect on the superheating degree. R404A two-stage compression refrigeration system is unstable because COP of this system is significantly changed when evaporating temperature and compressor efficiency decreased. In particular, when compressor efficiency decreased, COP is significantly decreased. This is inefficient for long-term use.

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참고문헌

  1. S. Sawalha, 2005, "Theoretical evaluation of trans-critical $Co_2$ systems in supermarket refrigeration. Part I: Modeling, simulation" and optimization of two system solutions". ASHRAE J., Vol. 47, No. 8, pp. 26-30.
  2. S. N. Park and M. S. Kim, 1999, "Experiment and simulation on the performance of an autocascade refrigeration system using carbon dioxide as a refrigerant", School of Mechanical and Aerospace Engineering, Seoul National University, Seoul 151-742, South Korea.
  3. J. A. Dopazo, J. Fernandez-Seara, Sieres, F. J. Uhia, 2009, "Theoretical analysis of a $CO_2-NH_3$ cascade refrigeration system for cooling applications at low temperatures". Applied Thermal Engineering, Vol. 29, No. 8-9, pp. 1577-1583. https://doi.org/10.1016/j.applthermaleng.2008.07.006
  4. A. Messineo, G. Panno, 2011, "LNG cold energy use in agro-food industry: a case study in Sicity". Journal of Natural Gas Science and Engineering, Vol. 3, No. 1, pp. 356-363. https://doi.org/10.1016/j.jngse.2011.02.002
  5. A. Messineo, 2012, "R744-R717 Cascade Refrigeration System: Performance Evaluation compared with a HFC Two-Stage System", Engineering and Architecture Faculty, University of Enna Kore, Cittadella Universitaria, Italy, Vol. 14, pp. 56-65. https://doi.org/10.1016/j.egypro.2011.12.896
  6. R. Liopis, E. Torrella, R. Cabello, D. Sanchez, 2010, "Performance evaluation of R404A and R507A refrigerant mixtures in an experimental double-stage vapour compression plant", Department of Mechanical Engineering and Construction Campus de Riu Sec, Jaume I University, E-12071 Castellon, Spain, Vol. 87, No.5, pp. 1546-1553. https://doi.org/10.1016/j.apenergy.2009.10.020
  7. EES: Engineering Equation Solver, 2006. fChart Software Inc.
  8. A. Hiren, A. Shah, B. Ragesh G. Kapadia, 2011, "Comparative Assessment of a Cascade refrigeration cycle with different refrigerant pair", Institute of Technology, NIRMA University, AHMEDABAD-382 481, 08-10.
  9. W. Bingming, W. Guagen, L. Jianfeng, X. Ziwen, 2009, "Experimental investigation on the performance of $NH_3/CO_2$ cascade refrigeration system with twin-screw compressor", School of Energy and Power Engineering, Xian Jiaotong University, Xi'an, Shannxi 710049, China, Vol. 32, No. 6, pp. 1358-1365. https://doi.org/10.1016/j.ijrefrig.2009.03.008