A review on the performance of geothermal energy pile foundation, its design process and applications

AK Sani, RM Singh, T Amis, I Cavarretta - Renewable and Sustainable …, 2019‏ - Elsevier
Geothermal energy piles (GEPs) are an environmentally friendly energy source which utilise
the low-grade heat energy present in the shallow earth surface to provide heating and/or …

A critical review on the current knowledge of geothermal energy piles to sustainably climatize buildings

RP Cunha, PJ Bourne-Webb - Renewable and Sustainable Energy …, 2022‏ - Elsevier
Greenhouse gas emissions produced by fossil fuels are causing a slow change of the
climate's conditions. Air conditioning systems in engineering superstructures demand a …

Thermal performance of geothermal energy tunnel in unsaturated soils

J Liu, C Zhou - Applied Thermal Engineering, 2024‏ - Elsevier
Energy tunnel provides an innovative and efficient approach to harvesting geothermal
energy. Understanding its performance and identifying the key influential factors are …

Influence of backfilling phase change material on thermal performance of precast high-strength concrete energy pile

Z Cao, G Zhang, Y Liu, X Zhao, C Li - Renewable Energy, 2022‏ - Elsevier
The use of phase change materials (PCMs) within the precast high-strength concrete (PHC)
energy pile is relatively rare. A study concerning the thermal performance of the PHC energy …

Effective parameters on the performance of ground heat exchangers: A review of latest advances

B Liang, M Chen, Y Orooji - Geothermics, 2022‏ - Elsevier
Ground heat exchanger is a significant part of the ground source heat pumps system with
environment-friendly and energy-saving. The coefficient of performance for the ground …

Thermal performance analysis and assessment of PCM backfilled precast high-strength concrete energy pile under heating and cooling modes of building

Z Cao, G Zhang, Y Liu, X Zhao - Applied Thermal Engineering, 2022‏ - Elsevier
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 …

[HTML][HTML] Energy pile groups for thermal energy storage in unsaturated soils

F Behbehani, JS McCartney - Applied Thermal Engineering, 2022‏ - Elsevier
A coupled heat transfer and water flow model implemented in COMSOL and validated
against measurements from a tank scale test was applied to investigate the application of …

Experimental study on thermal response of a PCM energy pile in unsaturated clay

X Bao, X Qi, H Cui, W Tang, X Chen - Renewable Energy, 2022‏ - Elsevier
Energy piles are a new renewable energy technology that is suitable for use as a heat
exchanger in ground source heat pump systems. In this study, hollow steel balls macro …

Performance of thermally enhanced backfill material in vertical ground heat exchangers under continuous operation in a cooling season

X Liu, G Zhang, R Wu, P Chen, J Guo, J Wan - Applied Thermal …, 2024‏ - Elsevier
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 …

A Simplified Method for Bearing-Capacity Analysis of Energy Piles Integrating Temperature-Dependent Model of Soil–Water Characteristic Curve

TA Pham, M Sutman - Journal of Geotechnical and …, 2023‏ - ascelibrary.org
The bearing resistance of energy piles in the presence of temperature effects has not been
thoroughly investigated, preventing the perfecting of energy pile design methods …