Journal of the Korean Society for Geothermal and Hydrothermal Energy (한국지열·수열에너지학회논문집)

Korean Society for Geothermal and Hydrothermal Energy (한국지열·수열에너지학회)
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A study on the part-load performance of 2-stage water source heat pump

2단 압축 수열원 열펌프 시스템의 부분부하 운전특성에 관한 연구

  • Lee, Young-Soo (Solar Thermal and Geothermal Research Center, Korea Institute of Energy Research(KIER)) ;
  • Baik, Young-Jin (Solar Thermal and Geothermal Research Center, Korea Institute of Energy Research(KIER))
  • 이영수 (한국에너지기술연구원 태양열지열연구센터) ;
  • 백영진 (한국에너지기술연구원 태양열지열연구센터)
  • Published : 2009.06.01
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Abstract

The river water heat source heat pump has the advantage in the performance compared to air source heat pump. In this study, an experimental study on a 2-stage heat pump, which is designed to utilize a river water heat source, were carried out. Generally, a heat pump is designed for maximum capacity rate, but it actually operates at part load condition in most cases. Therefore, an information on the part-load characteristic is very important in view of the system overall performance. In this study, part-load performance tests of a R134a 2-stage compression heat pump were carried out over the river water and supply heating water temperature changes.

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