| Title |
An Experimental Study on the Performance of a Heat Pumpwith a Refrigerant Heating Device |
| Keywords |
Heat pump ; 열펌프 ; Multi driving ; 복합구동 ; Refrigerant heating ; 냉매가열 |
| Abstract |
To improve heating performance of the heat pump in winter season, refrigerant heating device was applied to conventional heat pump. The refrigerant heating device operates at the heating capacity does not enough to the heating load requirement of the conditioning space. When the discharge air temperature of the indoor heat exchanger goes down to below 40℃ which is criterion for comfort of the occupants in the conditioning space, the system also starts. The refrigerant heating system has new concept of auxiliary heating device for heat pump in winter. In this study, the system performance was analyzed through experiments and parametric study was conducted to improve the COP and control strategies. |