| Title |
Simulation on the Heating Performance ofa 2-Stage Compression Heat Pump System Using River Water |
| Authors |
박차식 ; 김보현 ; 김용찬 ; 이영수 ; 방기영 |
| Keywords |
River water ; 하천수 ; Heat pump ; 열펌프 ; 2-Stage compression heat pump ; 2단압축 열펌프 ; Electronic expansion valve ; EEV, 전자팽창밸브 |
| Abstract |
The use of river water as a heat source of a heat pump has the advantage in the performance compared to the use of atmospheric air because the temperature variation of river water over the year is relatively small. In this study, the performance of the heat pump system using river water as a heat source was numerically investigated. A simulation model for the 2-stage compression heat pump system was developed with each component model composed of compressors, heat exchangers, a flash tank and electronic expansion devices. The performance of the heat pump system using river water was improved by 50% compared to that using atmospheric air in winter conditions. |