Korean Journal of Air-Conditioning and Refrigeration Engineering (설비공학논문집)

The Society of Air-Conditioning and Refrigerating Engineers of Korea (대한설비공학회)
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Effects of Accumulator Heat Exchanger on the Performance of a Refrigeration System

열교환기 내장형 어큐뮬레이터가 냉동시스템의 성능에 미치는 영향에 관한 연구

  • Kang Hoon (Graduate School of Mechanical Engineering, Korea University) ;
  • Choi Kwang-Min (Graduate of School of Mechanical Engineering, Korea University) ;
  • Park Cha-Sik (Graduate of School of Mechanical Engineering, Korea University) ;
  • Kim Yong-Chan (Dept. of Mechanical Engineering, Korea University)
  • 강훈 (고려대학교 기계공학과 대학원) ;
  • 최광민 (고려대학교 기계공학과 대학원) ;
  • 박차식 (고려대학교 기계공학과 대학원) ;
  • 김용찬 (고려대학교 기계공학과)
  • Published : 2006.05.01
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Abstract

An AHX (Accumulator Heat exchanger) consists of a commercial accumulator and an inner heat exchanger located inside of the accumulator. The AHX is used in multi air-conditioners to assure that liquid-phase refrigerant enters into the expansion device. This purpose is achieved by heat transfer between the refrigerant leaving the evaporator and the refrigerant leaving the condenser. In this study, the effects of AHX on the performance of a refrigeration system using R-22 were measured and the test results were analyzed. The operating characteristics of the refrigeration system with the AHX are considerably different from those without the AHX. Therefore, it is required to determine optimum refrigerant charge and optimum operating conditions when the AHX is used in the refrigeration system having a constant flow-area expansion device such as capillary tube.

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References

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