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지중 순환수 유량 변화에 따른 지열원 히트펌프 시스템의 성능 특성 연구
이준엽(Jun Yub Lee),정진택(Jin Taek Chung),우정선(Jungson Woo),최종민(Jong Min Choi) 대한설비공학회 2010 설비공학 논문집 Vol.22 No.10
The aim of this study is to investigate the influence of the secondary fluid flow rate through GLHX on a GSHP system with vertical single U-tube type GLHXs. The COP of a GSHP system with large flow rate was lower than it with small flow rate due to large power consumption of ground loop circulating pump. It is suggested that the heat pump unit with high COP and low flow rate through the GLHX have to be selected in order to enhance the performance of the system and reduce the length of GLHX.