| Title |
Performance Analysis of a Low-Depth Unit-Type Ground Heat Exchanger using Numerical Simulation |
| Authors |
JinHwan Oh ; JangHoo Seo ; Yujin Nam |
| DOI |
http://dx.doi.org/10.6110/KJACR.2015.27.3.169 |
| Keywords |
지중열교환기 ; 수치해석 ; 성능검토 ; 열교환량 Ground heat exchange ; Numerical simulation ; Performance analysis ; Heat exchange rate |
| Abstract |
Recently, ground source heat pump (GSHP) systems have attracted much attention, according to the enhanced social demand of renewable energy. GSHP systems can achieve higher coefficient of performance than the conventional air-source heat pump systems by utilizing stable underground temperature. However, the initial cost of GSHP system is higher than that of the conventional systems, especially, in the small-size buildings. Therefore, it is necessary to develop small-size ground heat exchanger with low cost and quick installation. In this study, a unit-type ground heat exchanger was developed and heat exchange rate was calculated by the numerical simulation. As a result, 27.45 W/m of heat exchange rate was acquired in the condition of 0.5 m × 0.2 m × 2 m unit. |