| Title |
Experimental Study on the Performance Characteristics of a Simultaneous Heating and Cooling Heat Pump System at Each Operating Mode |
| Authors |
강훈(Hoon Kang) ; 이선일(Sunil Lee) ; 주영주(Youngju Joo) ; 정현준(Hyunjoon Chung) ; 김용찬(Yongchan Kim) ; 최종민(Jongmin Choi) |
| Keywords |
동시냉난방 ; 열펌프 ; 열회수 ; 시스템 설계 ; 운전모드 Simultaneous cooling and heating ; Heat pump ; Heat recovery ; System design ; Operating mode |
| Abstract |
The cooling load in winter season is significant in many commercial buildings and hotels because of the usage of office equipments and the high efficiency of wall insul-ation. The development of a multi-heat pump that can cover heating and cooling simul-taneously for each indoor unit is required. In this study, a 4-room simultaneous heating and cooling heat pump system was designed and its performance was measured at each operating mode. The system used R-410A and adopted variable speed compressor. The problems on the designed system were analyzed and defined. In addition, the solutions of the problems were suggested to improve system efficiency and to obtain the stable operation. |