| Title |
An Experimental Study on Variable-Speed Control of an Ground-Water Circulation Pump for a Ground Source Multi-Heat Pump System |
| DOI |
http://dx.doi.org/10.6110/KJACR.2013.25.8.443 |
| Keywords |
지열히트펌프 시스템 ; 순환펌프 ; 입출구 온도차 ; 가변속도제어 Ground-Source Heat Pump System ; Circulation Pump ; Inlet and Outlet Water Temperature Difference ; Variable Speed Control |
| Abstract |
The purpose of this study is to propose an enhanced variable-speed control method of ground-water circulation pumps using inlet and outlet ground-water temperature difference and analyze its effect for the ground source multi-heat pump system installed in a single-family house. As a result, it has shown to significantly reduce the electricity use of ground-water circulation pump and improve overall system Coefficient of Performance (COP) due to the proposed variablespeed control under partial load conditions after oversized and inefficient single-speed pump retrofit. |