엔진 구동 열펌프의 현장 설치 냉방 시험에 관한 연구

This paper presented the field test results of a high-efficiency, natural gas engine-driven heat pump system (EDHP) to a residential application during cooling mode operation. Through this field performance test, we can obtain the optimum control logic that regulating the engine speed to modulate the capacity of the system for a part load operation according to ambient temperature fluctuation and to improve the durability of the system. We also found that the thermal COP of EDHP is dramatically affected by both outdoor temperature and engine speed.