Journal of the Korean Solar Energy Society (한국태양에너지학회 논문집)

The Korean Solar Energy Society (한국태양에너지학회)
권호 표지
DOI QR코드

DOI QR Code

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

수치 시뮬레이션을 이용한 수직밀폐형 지열시스템의 채열특성에 관한 연구

  • Nam, Yu-Jin (Department of Architectural Engineering, Cheongju University) ;
  • Oh, Jin-Hwan (Department of Architectural Engineering, Cheongju University)
  • 남유진 (청주대학교 건축공학과) ;
  • 오진환 (청주대학교 건축공학과)
  • Received : 2014.01.24
  • Accepted : 2014.04.21
  • Published : 2014.04.30
Download PDF
⟨ Previous Next ⟩

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

References

  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 https://doi.org/10.1016/j.egypro.2011.10.119
  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 https://doi.org/10.1016/j.geothermics.2013.10.002
  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
  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.
  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. https://doi.org/10.1016/j.enbuild.2008.06.004
  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. https://doi.org/10.6110/KJACR.2011.23.5.321

Cited by

  1. Study on the System Design of a Solar Assisted Ground Heat Pump System Using Dynamic Simulation vol.9, pp.4, 2016, https://doi.org/10.3390/en9040291
  2. Study on the Performance Prediction Simulation of the Heat Pump System using Solar and Geothermal Heat Source vol.34, pp.3, 2014, https://doi.org/10.7836/kses.2014.34.3.075
  3. Study on the Performance of a Ground Source Heat Pump System Assisted by Solar Thermal Storage vol.8, pp.12, 2015, https://doi.org/10.3390/en81212365
  4. Sensitivity Analysis of Design Factor for the Suitable Map of Ground Source Heat Pump System vol.12, pp.S2, 2016, https://doi.org/10.7849/ksnre.2016.10.12.S2.65
  5. Performance Analysis of Hybrid System with PVT and GSHP for Zero Energy Building vol.18, pp.5, 2018, https://doi.org/10.12813/kieae.2018.18.5.085
  6. 기초지방자치단체별 보급 가능한 재생에너지 시장잠재량을 이용한 에너지 자립률 평가 vol.39, pp.6, 2019, https://doi.org/10.7836/kses.2019.39.6.137