Journal of Power System Engineering (동력기계공학회지)

The Korean Society for Power System Engineering (한국동력기계공학회)
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Heat Transfer and Pump Consumption Power of Indirect Refrigeration System Using CO2 as a Secondary Refrigerant

2차 냉매로서 CO2를 사용하는 간접 냉동시스템의 열전달과 펌프 소비동력

  • 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) ;
  • Yi, Wen-Bin (Department of Refrigeration and Air-conditioning Engineering, PuKyung National University, Graduate student)
  • 윤정인 (부경대학교 냉동공조공학과) ;
  • 최광환 (부경대학교 냉동공조공학과) ;
  • 손창효 (부경대학교 냉동공조공학과) ;
  • 이문빈 (부경대학교 냉동공조공학과 대학원)
  • Received : 2013.11.05
  • Accepted : 2013.12.20
  • Published : 2014.04.30
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Abstract

In this paper, the heat transfer coefficient and pump consumption power of indirect refrigeration system using $CO_2$ as a secondary refrigerant were investigated experimentally. First, from the comparison of pump consumption powers of existing brines(EG, PG, EA etc.) and $CO_2$ as secondary refrigerants at the same experimental conditions, PG and $CO_2$ show the highest and lowest power, respectively. Second, the heat transfer coefficient of $CaCl_2$ is the highest, but PG is the lowest among other secondary refrigerants. From the above results, it is confirmed that $CO_2$ as the secondary refrigerant has excellent characteristics when comparing to existing brines. Thus, it is concluded that $CO_2$ is applicable as the secondary refrigerant of indirect refrigeration system.

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References

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