Paper Title:

Characteristics Analysis of Soil Temperature of Surrounding Underground Pipe of Ground Source Heat Pump when Thermal and Seepage Coupled

Periodical Applied Mechanics and Materials (Volumes 48 - 49)
Main Theme Measuring Technology and Mechatronics Automation
Edited by Zhixiang Hou
Pages 304-307
DOI 10.4028/www.scientific.net/AMM.48-49.304
Citation Xiao Bin Zhang et al., 2011, Applied Mechanics and Materials, 48-49, 304
Online since February, 2011
Authors Xiao Bin Zhang, Wei Bing Zhu, Si Peng Tan
Keywords Coupled Heat Conduction and Groundwater Advection, Ground Source Heat Pump (GSHP), Soil Temperature Field
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The heat transfer capability of the underground geothermal heat exchanger (GHE) is influenced by groundwater advection, and heat conduction and groundwater heat advection is coupled. Based on porous medium theory, the GHE’s mathematical model under coupled heat conduction and advection is established with correspond simplifications. Through numerical simulation, the performance of the GHE with groundwater advection is analyzed. The GHE’s heat transfer effect in winter in the continuous operation mode(COM) and the intermittent operation mode(IOM) is compared, furthermore the soil recovering effect in IOM is analyzed, finally the heat recovering time which the soil demands in a system running period is researched. It supplies theory support and technology accumulation for the application of ground-source heat pump (GSHP).

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