[HTML][HTML] Driven precast concrete geothermal energy piles: Current state of knowledge

H Sadeghi, RM Singh - Building and Environment, 2023 - Elsevier
Geothermal energy piles are increasingly luring attention in the construction industry as a
cost-effective and environmental friendly solution for heating and cooling buildings. Energy …

Machine-learning-based performance prediction of the energy pile heat pump system

Y Chen, G Kong, X Xu, S Hu, Q Yang - Journal of Building Engineering, 2023 - Elsevier
The coefficient of performance (COP) is one of the important indicators for evaluating ground
source heat pump systems, and a certain amount of machine learning algorithms have been …

Thermo-mechanical behaviour of energy piles in overconsolidated clay under various mechanical loading levels and thermal cycles

X Ding, D Zhang, A Bouazza, C Wang, G Kong - Renewable Energy, 2022 - Elsevier
Energy pile foundations play the dual role of providing structural support to buildings and
acting as heat exchanger units. Thus, they are subjected to different mechanical loads from …

Analytical solution for heat exchange in energy pile ground considering smear effects

X Zhao, J Ni, Y Liu, W Gong - International Journal for …, 2023 - Wiley Online Library
Due to the installation of energy piles, the surrounding soil will be inevitably disturbed,
leading to a smaller void ratio and larger thermal conductivity. This study proposes a new …

An elasto-plastic numerical analysis of THM responses of floating energy pile foundations subjected to asymmetrical thermal cycles

CWW Ng, X Zhao, S Zhang, J Ni, C Zhou - Géotechnique, 2022 - icevirtuallibrary.com
Although end-bearing energy pile foundations subjected to symmetrical thermal cycles have
been extensively studied in the laboratory and in the field, the mechanisms underlying the …

Full-scale in situ experimental study on the bearing capacity of energy piles under varying temperature and multiple mechanical load levels

Y Wang, F Zhang, F Liu, X Wang - Acta Geotechnica, 2024 - Springer
Although the thermomechanical behaviors of energy piles have been investigated through a
limited number of full-scale tests with constant loads, the effect of multiple load levels on the …

Seasonal performance of an energy pile heat pump system and prediction of building thermal load

G Kong, Y Chen, L Wang, Y Meng, Q Yang - Applied Thermal Engineering, 2024 - Elsevier
Ground source heat pumps (GSHPs) are widely used for cooling and heating buildings,
which can reduce the burning of fossil fuels and contribute to the reduction of carbon …

Thermo-visco-elastic analysis of thermomechanical behavior of energy pile groups considering time-dependent deformation characteristics of soils

J Fang, S Feng, Y Zhao, W Xi - Computers and Geotechnics, 2023 - Elsevier
Energy piles are increasingly being exploited worldwide for their dual functions of bearing
structural loads and utilizing geothermal energy. However, scarce knowledge is available on …

[HTML][HTML] Recent Advancements in Geothermal Energy Piles Performance and Design

A Khalil, M Attom, Z Khan, PV Astillo, OM El-Kadri - Energies, 2024 - mdpi.com
Geothermal energy piles or ground heat exchange (GHE) systems embrace a sustainable
source of energy that utilizes the geothermal energy naturally found inside the ground in …

Small-scale physical modelling of vertically loaded, cyclically thermally-activated helical piles

M Bashiri, M Ghazavi, PJ Bourne-Webb - Geomechanics for Energy and the …, 2024 - Elsevier
To investigate the use of thermally-activated helical piles in shallow geothermal energy
systems, a 1-g modelling study was conducted. Helical piles with either a single-or double …