Proceedings of the SAREK Conference (대한설비공학회:학술대회논문집)

The Society of Air-Conditioning and Refrigerating Engineers of Korea (대한설비공학회)
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Experimental Study on the Cooling and Heating Operation Characteristics of a Sea Water Source Heat Pump

해수열원 히트펌프 시스템의 냉난방 운전 특성에 관한 실증 연구

  • Kim, Ji-Young (Solar and Geothermal Energy Research Center, Korea Institute of Energy Research(KIER)) ;
  • Baik, Young-Jin (Solar and Geothermal Energy Research Center, Korea Institute of Energy Research(KIER)) ;
  • Chang, Ki-Chang (Solar and Geothermal Energy Research Center, Korea Institute of Energy Research(KIER)) ;
  • Ra, Ho-Sang (Solar and Geothermal Energy Research Center, Korea Institute of Energy Research(KIER))
  • 김지영 (한국에너지기술연구원 태양열.지열연구센터) ;
  • 백영진 (한국에너지기술연구원 태양열.지열연구센터) ;
  • 나호상 (한국에너지기술연구원 태양열.지열연구센터) ;
  • 장기창 (한국에너지기술연구원 태양열.지열연구센터)
  • Published : 2009.06.25
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Abstract

The purpose of this study is to investigate the field Operation Characteristics of a sea water heat source cascade heat pump system and system applicable to Building. Cascade heat pump system is composed R410A compressor, R134a compressor, EEV, cascade heat exchanger, Plate heat exchanger etc. Building area is $890m^2$ and has five floors above ground. R410A is used for a low-stage working fluid while R134a is for a high-stage. The system could runs at dual mode. One is mode of general R410A refrigeration cycle in summer and the other is cascade cycle. In order to gain a high temperature supply water in winter season, the system is designed to perform a cascade cycle. The filed test results show that the sea water heat source heat pump system exhibits a COP of about 5.5 in cooling mode along with a heating COP of about 4.0 in 1-stage heating mode. Cascade 2-stage heat pump system is enough to supply $60^{\circ}C$ water and heating COP is about 3.0

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