The Coupled Heat Conduction & Advection Model for Ground Heat Exchanger and its Application for Utilizable Resource Amount Calculation in Soil

Abstract:

Following the wide application of ground source heat pump (GSHP) system, especially for large area ground heat exchanger (GHE), it is really necessary to have a standard calculation or assessment method to estimate the utilizable resource amount in soil around GHE. As for the GHE area, the soil works as a thermal storage actually which means it is heat gain in summer to meet the heat demands in the coming winter, and the cool energy gain in winter to be used for next summer air-conditioning. So it is really necessary to know the utilizable resource amount for better design of GSHP system and then the highly efficient operation of the system too. Hereby, a coupled heat conduction and heat advection model is introduced to simulate the performance of ground heat exchanger. Thus we can see the importance of utilizable resource amount estimation method. The reasonable resource amount estimate method is good for the scientific design, normal utilization, and high-efficient operation of GSHP system.

• Periodical: Advanced Materials Research (Volumes 594-597)
• Pages: 2201-2209
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.594-597.2201
• Online since: November 2012
• Authors: Rui Fan, Yan Gao, Wei Ding Long
• Keywords: Coupled Heat Conduction & Advection Model, Ground Heat Exchanger, Utilizable Resource Amount

References

[1] Dong Fei, Ni Long, etc. HV & AC, Vol.39 (2009), P.70-72(In Chinese).

[2] Han Zaisheng, Ran Weiyan, Tong Hongbing. GEOLOGY IN CHINA, Vol.34 (2007), P. 1115-1121 (In Chinese).

[3] Wang Xunchang. Refrigeration and Air-conditioning, Vol.6 (2009), P.15-21(In Chinese).

[4] Wang Xunchang. Refrigeration and Air-conditioning, Vol.6 (2008), P.119-124(In Chinese).

[5] Chinese Regulation "Technical code for ground-source heat pump system"(GB50366-2005)[S].

[6] Information on http://www.groenholland.nl/download/Lausanne.

[7] Yian G, O'Neal D. ASHARE Transactions. Vol.104 (1998), P. 347-355.

[8] Tao W. Numerical Heat Transfer (Second Edition). Xi'an Jiao Tong University Press(2002).

[9] Chen X, Han P. A note on the solution of conjugate heat transfer problems using SIMPLE-like algorithms. International Journal of Heat and Fluid Flow 2000;21: 463-467

DOI: 10.1016/s0142-727x(00)00028-x

[10] Fan R, Jiang Y Q, Yao Y, Deng S M and Ma Z L. A study on the performance of a geothermal heat exchanger under coupled heat conduction and groundwater advection. Energy 2007; 32 (11) : 2199-2209

DOI: 10.1016/j.energy.2007.05.001

[11] Fan R. Heat Transfer Analysis of Geothermal Hear Exchanger under Coupled Thermal Conduction and Groundwater Advection. PhD thesis of Harbin Institute of Technology, Harbin, China; 2006 (in Chinese).