| Title |
Analysis of the Initial Cost Payback Period on the Open-loop Geothermal SystemUsing Two Wells |
| Authors |
Jeong-Heum Cho ; Yujin Nam |
| DOI |
https://doi.org/10.6110/KJACR.2017.29.3.119 |
| Keywords |
복수정 ; 지열 히트펌프 ; 생애주기비용 Two-well ; Ground source heat pump ; Life cycle cost |
| Abstract |
Recently, ground source heat pump systems are being used in buildings for cooling and heating to reduce greenhouse gas and save energy. However, ground source heat pump systems mainly use the vertical closed-loop geothermal system design rather than the open-loop geothermal system design. This is due to a lack of knowledge and few research feasibility studies. In this research, a dynamic thermal analysis numerical simulation based on a standard house model was conducted for an open-loop geothermal system. Based on heating load analysis results, the life cycle costs of a standard house using an open two-well geothermal system were analyzed and compared with a vertical closed-loop geothermal system, and a diesel boiler. As a result, it was found that using an open two-well geothermal system shows economic return on investment after three years. |