| Title |
Performance Optimization of a Hybrid Ground Source Heat Pump According to Secondary Flow Distribution Ratio between the Ground and the Supplemental Loop |
| Authors |
이주성(Jooseong Lee) ; 박홍희(Honghee Park) ; 김원욱(Wonuk Kim) ; 김용찬(Yongchan Kim) |
| DOI |
http://dx.doi.org/10.6110 /KJACR.2012.24.2.102 |
| Keywords |
성능계수 ; 분배비 ; 하이브리드 지열히트펌프 ; 보조기기 COP ; Distribution ratio ; Hybrid ground source heat pump ; Supplemental equipment |
| Abstract |
The objective of this study is to improve the performance of a hybrid ground source heat pump (HGSHP) by optimizing the flow distribution ratio of secondary fluid flow rate between a ground loop and a supplemental loop. Initially, a conventional ground source heat pump (GSHP) was tested to determine an optimum flow rate of the secondary fluid. Based on the selected optimum value, the HGSHP was also tested by varying the flow distribution ratio of the secondary fluid flow rate between the ground loop and the supplemental loop, such as 9：1, 7：3, 5：5, and 3：7. The results showed that the optimum flow distribution ratio of the secondary fluid flow rate was 7：3. The COP of the HGSHP was improved by 19% over the GSHP at a flow distribution ratio of 7：3 and an entering water temperature of 40℃. |