| Title |
An Experimental Study on the Performance of a Heat Pump for the Cold Climate |
| Authors |
주정동 ; 배경수 ; 황영규 ; 이윤용 ; 정규하 ; 오상경 |
| Keywords |
Heat pump ; 열펌프 ; EEV ; 전자팽창밸브 ; Tandem Cycle ; 병렬 사이클 ; Heating capacity ; 난방능력 ; COP ; 성적계수 |
| Abstract |
The present study concerns an experimental study of a R-22 heat pump system consisted of liquid and liquid heat exchangers. The test was performed for various systems of a single-, tandem-, and two stage-cycle at the same environmental conditions of temperature. Various experiments of the heat pump system were performed to compare the heating capacity and COP, when the outdoor temperature is near -15°C and the indoor temperature is 20°C. As the results of the present study, the system of Tandem(parallel) cycle showed the best heating performance, while the discharge temperature of refrigerant was too high. In case of the system of two stage cycle, the performance characteristics were significantly improved by employing the inter cooler. |