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열교환기 용량변화에 따른 하천수열원 열펌프의 성능 변화
박성룡(Seong-Ryong Park),백영진(Young-Jin Baik),김희한(Hee-Hwan Kim),이영수(Young-Soo Lee) 대한기계학회 2003 대한기계학회 춘추학술대회 Vol.2003 No.4
The utilization of unused energy is important because it can afford to offer a chance to increase energy efficiency of a heat pump system. One of the promising unused energy sources is river water. It can be used as a heat source in both heating and cooling effectively with its superior features as a secondary working fluids. In this study, the performance of a 5HP heat pump system using river water as a heat source is investigated by both experiment and simulation. According to system simulation results, performance improvement of condenser seems more effective than of evaporator for better COP_H. The serial connection is also preferred among several methods to improve plate type heat exchanger performance. The experimental results show that hot water of 50~60℃ can be acquired from water heat source of 5~9℃ with COP_H of 2.7~3.5.