Over the last few decades, great deals on ground-source heat pumps (GSHPs) have been
broadly addressed. Various systems of GSHP have been employed worldwide for …

As a renewable energy source, geothermal energy has been widely used to provide space
heating and cooling for buildings. The thermal performance of ground heat exchanger …

Backfill materials in vertical ground heat exchangers significantly affect the heat-transfer
efficiency of ground-source heat pump systems. In this study, the use of graphite improving …

The medium and deep U-type borehole heat exchanger (MDUBHE) system is a novel
technology to extract deep geothermal energy for building heating. The thermal performance …

Recently, it has been proven that natural convection significantly impacts heat transfer close
to geothermal systems in saturated soils even in the presence of groundwater flow …

Uncontrolled heat extraction by multiple interacting borehole heat exchangers (BHEs) in
high-density energy-use districts can lead to undesirable thermal conditions in the …

A methodology to characterize the main hydro-geothermal parameters of saturated and
unsaturated ground layers, such as intrinsic thermal conductivity, volumetric heat capacity …

The complex hydrogeological conditions in karst areas complicate the heat transfer
mechanisms in buried pipe heat exchangers. This study examines the impact of geological …

To evaluate the performance of a ground source heat pump (GSHP) system, it is necessary
to assess the subsurface thermal regimen around the borehole heat exchanger (BHE). This …

This paper presents a comprehensive study of the two-dimensional heat transfer models for
four typical cases of precast high-strength concrete (PHC) energy piles. The proposed …