Browse > Article
http://dx.doi.org/10.7836/kses.2014.34.2.066

Study on the characteristic of heat exchange for vertical geothermal system using the numerical simulation  

Nam, Yu-Jin (Department of Architectural Engineering, Cheongju University)
Oh, Jin-Hwan (Department of Architectural Engineering, Cheongju University)
Publication Information
Journal of the Korean Solar Energy Society / v.34, no.2, 2014 , pp. 66-72 More about this Journal
Abstract
Ground source heat pump system can achieve high efficiency of performance by utilizing annually constant underground temperature to provide heat source for space heating and cooling. Generally, the depth of constant-temperature zone under the ground depends on surface heat flux and soil properties. The deeper the ground heat exchanger is installed, the higher the heat exchange rate can be acquired. However, in order to optimally design the system, it is necessary to consider both the installation cost and the system performance. In this study, performance analysis of ground source heat pump system according to the depth has been conducted through the case study.
Keywords
Ground source heat pump system; Numerical simulation; Heat source; Soil temperature; Ground heat exchange rate;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
연도 인용수 순위
1 Zonghe Zheng et. al, A Study on the Thermal Performanceof Vertical U-Tube Ground Heat Exchangers, Energy Procedia, Vol. 12, pp. 906-914, 2011   DOI   ScienceOn
2 Maeir Zalman Olfman et. al, Effects of depth and Material property variations on the ground temperature response to heating by a deep vertical ground heat exchanger in purely conductive media, Geothermics, Vol. 51, pp. 9-30, 2014   DOI   ScienceOn
3 Kyongchon Min et. al, Effect of the Design Parameters of Geothermal Heat Exchanger Design Length, Transactions of the Korea Society of Geothermal Energy Engineers, Vol. 7, No. 2, pp. 10-15, 2011   과학기술학회마을
4 Hwang Kwang Il et. al, A Case Study on the Seasonal Temperature Variations in Depth of a Vertically-installed Geothermal Heat Exchange Pipe, Journal of the Korean Solar Energy Society, Vol. 29, No. 3, 2009.   과학기술학회마을
5 Sun Jong Cheol et. al, The Characteristicsof Thermal Diffusion With the Vertical-Closed Loop Type Geothermal Heat Exchanger, Journal of the Korean Solar Energy Society, Vol. 33, No. 1, 2013.
6 Yujin Nam et. al, Development of anumerical model to predict heat exchange rates for a ground-source heat pump system, Energy and Buildings, Vol. 40, pp. 2133-2140, 2008.   DOI   ScienceOn
7 Nam Y. J, Numerical analysis for the Effect of Ground and Groundwater conditions on the Performance of Ground Source Heat Pump Systems, Journal of SAREK, Vol. 23, No. 5, pp. 321-326, 2011.   과학기술학회마을   DOI   ScienceOn