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The development and utilization of shallow geothermal energy have rapidly improved worldwide. The thermal physical parameters of rock and soil layers must be accurately measured to design a ground source heat pump system. The obtained thermal conductivity of rock and soil play a critical role in optimizing heat pump system and cost-saving design. In this study, detailed tests were performed on a borehole...
Comprehensive thermal conductivity of the rock and soil is generally measured by thermal response test ignoring the effect on groundwater flow. However, the influence of the groundwater flow on thermal conductivity is drastic, so the design of ground heat exchangers with no consideration of groundwater flow is inaccurate. Tangshan is distributed in the river alluvial–proluvial fan of Luanhe River...
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