Journal of Power System Engineering (동력기계공학회지)

The Korean Society for Power System Engineering (한국동력기계공학회)
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Performance Analysis of a Seawater Ice Machine Applied Two-stage vapor compression refrigeration system for Various Refrigerants

2단 증기 압축식 냉동시스템을 적용한 해상용 제빙장치의 냉매에 따른 성능 분석

  • Yoon, Jeong-In (Department of Refrigeration and Air-Conditioning Engineering, Pukyong National University) ;
  • Son, Chang-Hyo (Department of Refrigeration and Air-Conditioning Engineering, Pukyong National University) ;
  • Heo, Seong-Kwan (Graduate School, Department of Refrigeration and Air-Conditioning Engineering, Pukyong National University) ;
  • Jeon, Min-Joo (Graduate School, Department of Refrigeration and Air-Conditioning Engineering, Pukyong National University) ;
  • Jeon, Tae-Young (Graduate School, Department of Refrigeration and Air-Conditioning Engineering, Pukyong National University)
  • 윤정인 (부경대학교 냉동공조공학과) ;
  • 손창효 (부경대학교 냉동공조공학과) ;
  • 허성관 (부경대학교 냉동공조공학과 대학원) ;
  • 전민주 (부경대학교 냉동공조공학과 대학원) ;
  • 전태영 (부경대학교 냉동공조공학과 대학원)
  • Received : 2016.03.24
  • Accepted : 2016.04.05
  • Published : 2016.04.30
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Abstract

Coefficient of performance (COP) for two-stage compression system is investigated in this paper to develop seawater ice machine. The system performance is analyzed with respect to degrees of superheating and subcooling, condensing and evaporating temperatures, compression and mechanical efficiencies and mass flow ratio in an inter-cooler. The main results are summarized as follows : The COP of the system grows when the mass flow ratio, subcooling degree and evaporating temperature edge up. Contrariwise, the system performance descends in case that superheating degree and condensing temperature increase. The most effective factor for the COP is the mass flow rate ratio. Each refrigerant has different limitation for a value of the mass flow ratio in the inter-cooler because of difference in material property.

Keywords

References

  1. K. S. Rho, 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. 3, pp. 42-47. https://doi.org/10.7842/kigas.2012.16.3.042
  2. K. S. Rho 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.
  3. 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.

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