Thermal behavior of the precast high-strength concrete (PHC) energy pile with phase
change material backfill (PCMB) has been rarely reported. In this study, a three-dimensional …

Low geo-temperature geothermal energy in the surrounding rock can be extracted by tunnel
lining ground heat exchangers (GHEs) and stored in phase change material (PCM) plates to …

Ground source heat pump (GSHP) systems are efficient and widely used form of shallow
geothermal energy utilization. In practical application, GSHP systems face the problem in …

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 …

Combining tunnel lining ground heat exchangers (GHEs) and phase change plates (PCPs)
to extract and store the geothermal energy is a novel and environment-friendly energy …

Climate change and overpopulation have led to an increase in water demands worldwide.
As a result, land subsidence due to groundwater extraction and water level decline is …

An innovative energy storage technique of phase change plates (PCPs) using tunnel lining
ground heat exchangers (GHEs) for cool storage facilitates the geothermal energy extraction …

The benefits of the use of horizontal U-type and spiral-coil-type ground heat exchangers
(GHE) were investigated and compared based on heat transfer performance and economic …

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 …

This study investigates the potential for energy extraction from energy piles under high-
velocity groundwater flow, considering different soil thermodynamic properties, pile …