| Title |
A Study on the Application and Efficiency Improvement of Fourth Generation District Heating by the Borehole Thermal Energy Storage System |
| Authors |
Jung Soo Ok ; Ik Ro Ahn ; Sarng Woo Karng |
| DOI |
https://doi.org/10.6110/KJACR.2022.34.4.198 |
| Keywords |
지열 히트펌프 시스템; 시추공식 계간축열 시스템; 히트펌프 용량; 부지면적 Geothermal Source Heat Pump System; Borehole Thermal Energy Storage System; heat pump capacity; land area occupancy |
| Abstract |
The purpose of this study was to compare the conventional Geothermal Source Heat Pump (GSHP) System, with Borehole Thermal Energy Storage (BTES) utilized heat pump system in cost-wise criteria. The consecutive operation of conventional GSHP performance decreased annually, and eventually discharged the purpose of the system. Deploying the BTES system with heat pump, thereby accumulating the low-cost heat energy from the summer season and using it to ease the heating load peak, can manage the presented problem, as well as supply the sufficient and stable amount of heat energy. Additionally the estimated heat pump capacity of conventional GSHP was 7,864 kW and BTES utilized system showed 1,781 kW. The land area occupancy also decreased by 25%. The BTES system can successfully decrease the initial facility investment cost and make efficient use of ground space. |