Proceedings of the SAREK Conference (대한설비공학회:학술대회논문집)

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

열교환기 내장형 어큐물레이터가 냉동시스템의 성능에 마치는 영향에 관한 연구

  • Kang, Hoon (Graduate School of Mechanical Engineering, Korea University) ;
  • Choi, Kwang-Min (Graduate School of Mechanical Engineering, Korea University) ;
  • Park, Cha-Sik (Graduate School of Mechanical Engineering, Korea University) ;
  • Kim, Yong-Chan (Department of Mechanical Engineering, Korea University)
  • 강훈 (고려대학교 기계공학과 대학원) ;
  • 최광민 (고려대학교 기계공학과 대학원) ;
  • 박차식 (고려대학교 기계공학과 대학원) ;
  • 김용찬 (고려대학교 기계공학과)
  • Published : 2005.11.25
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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 the liquid-phase refrigerant entering 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 H-22 were measured and the test results were analyzed. The operating characteristics of the refrigeration system with the installation of AHX were quite different from those without the installation of AHX. Therefore, it is required to find an optimum refrigerant charging amount and optimum operating conditions, when AHX is installed in the refrigeration system with an fixed area expansion device such as a capillary tube.

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