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

The Society of Air-Conditioning and Refrigerating Engineers of Korea (대한설비공학회)
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Experimental Study on the Performance Characteristics of a Simultaneous Heating and Cooling Heat Pump System at Each Operating Mode

동시냉난방 열펌프 시스템의 운전모드별 성능특성에 관한 실험적 연구

  • Kang, Hoon (Department of Mechanical Engineering, Korea University) ;
  • Lee, Sun-Il (Graduate School of Mechanical Engineering, Korea University) ;
  • Joo, Young-Ju (Graduate School of Mechanical Engineering, Korea University) ;
  • Chung, Hyun-Joon (Graduate School of Mechanical Engineering, Korea University) ;
  • Kim, Yong-Chan (Department of Mechanical Engineering, Korea University) ;
  • Choi, Jong-Min (Department of Mechanical Engineering, Hanbat National University)
  • 강훈 (고려대학교 기계공학과) ;
  • 이선일 (고려대학교 기계공학과 대학원) ;
  • 주영주 (고려대학교 기계공학과 대학원) ;
  • 정현준 (고려대학교 기계공학과 대학원) ;
  • 김용찬 (고려대학교 기계공학과) ;
  • 최종민 (한밭대학교 기계공학과)
  • Published : 2007.10.10
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Abstract

The cooling load in winter season is significant in many commercial buildings and hotels because of the usage of office equipments and the high efficiency of wall insulation. The development of a multi-heat pump that can cover heating and cooling simultaneously for each indoor unit is required. In this study, a 4-room simultaneous heating and cooling heat pump system was designed and its performance was measured at each operating mode. The system used R-410A and adopted variable speed compressor. The problems on the designed system were analyzed and defined. In addition, the solutions of the problems were suggested to improve system efficiency and to obtain the stable operation.

Keywords

References

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