Journal of Power System Engineering (동력기계공학회지)

The Korean Society for Power System Engineering (한국동력기계공학회)
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Performance Characteristics of Refrigeration System Using R744 as a Secondary Refrigerant

2차 냉매로 천연냉매 R744를 사용하는 냉동시스템의 성능 특성

  • Yi, Wen-Bin (Department of Refrigeration and Air-conditioning Engineering, PuKyung National University) ;
  • Jo, Hwan (Department of Refrigeration and Air-conditioning Engineering, PuKyung National University) ;
  • Yoon, Jung-In (Department of Refrigeration and Air-conditioning Engineering, PuKyung National University) ;
  • Choi, In-Soo (TongMyong University) ;
  • Son, Chang-Hyo (Department of Refrigeration and Air-conditioning Engineering, PuKyung National University)
  • 이문빈 (부경대학교 냉동공조공학과 대학원) ;
  • 조환 (부경대학교 냉동공조공학과 대학원) ;
  • 윤정인 (부경대학교 냉동공조공학과) ;
  • 최인수 (동명대학교) ;
  • 손창효 (부경대학교 냉동공조공학과)
  • Received : 2014.01.24
  • Accepted : 2014.02.26
  • Published : 2014.08.31
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Abstract

In this paper, the performance characteristics of R404 indirect refrigeration system using R744 as a secondary refrigerant were investigated experimentally to obtain a optimum design data for this system. First, for the constant experimental conditions, the COP of R404A indirect refrigeration system using R744 as secondary refrigerants decreases with respect to the increases in R404A condensation temperature and temperature difference in R744 cooler. And, the COP of indirect refrigeration system using R744 as secondary refrigerants decreases slightly with decreasing the mass flowrate of R744.

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References

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