Journal of Power System Engineering (동력기계공학회지)

The Korean Society for Power System Engineering (한국동력기계공학회)
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Cooling Performance Characteristics of 3RT Heat Pump System applied Electronic Expansion Valve

전자식 팽창밸브를 적용한 3RT급 히트펌프 시스템의 냉방 성능 특성

  • Son, Chang-Hyo (Department of Refrigeration and Air -Conditioning Engineering, Pukyong National University) ;
  • Yoon, Jung-In (Department of Refrigeration and Air -Conditioning Engineering, Pukyong National University) ;
  • Choi, Kwang-Hwan (Department of Refrigeration and Air -Conditioning Engineering, Pukyong National University) ;
  • Ha, Soo-Jung (Department of Refrigeration and Air -Conditioning Engineering, Pukyong National University) ;
  • Jeon, Min-Ju (Department of Refrigeration and Air -Conditioning Engineering, Pukyong National University) ;
  • Park, Sung-Hyeon (Graduate School, Department of Refrigeration and Air-Conditioning Engineering, Pukyong National University) ;
  • Lee, Sang-Bong (Keeha Precision Co., Ltd.)
  • 손창효 (부경대학교 냉동공조공학과) ;
  • 윤정인 (부경대학교 냉동공조공학과) ;
  • 최광환 (부경대학교 냉동공조공학과) ;
  • 하수정 (부경대학교 냉동공조공학과) ;
  • 전민주 (부경대학교 냉동공조공학과) ;
  • 박성현 (부경대학교 대학원 냉동공조공학과) ;
  • 이상봉 ((주)기하정밀)
  • Received : 2017.10.26
  • Accepted : 2017.12.05
  • Published : 2017.12.31
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Abstract

A heat pump system is a highly efficient, eco-friendly device which consumes a small amount of energy and supply a lot of energy for heat formation. In addition, it is a single device system that has low generation effect about carbon dioxide. There are many researches related to the electronic expansion valve and the heat pump, but the detailed data analysis of each influence is insufficient. In this study, the cooling capacity and COP of the heat pump system were investigated by varying frequency of the inverter connected to compressor, inlet temperature of chilled water into evaporator and inlet temperature of cooling water into condenser. The results are as follows : (1) The cooling capacity increased as the inverter frequency, inlet temperature of chilled water into evaporator increased, and inlet temperature of cooling water into condenser decreased. (2) The COP increased as the frequency of inverter, inlet temperature of cooling water into condenser decreased and the inlet temperature of chilled water into evaporator increased.

Keywords

References

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