[HTML][HTML] Advances in ground heat exchangers for space heating and cooling: Review and perspectives

P Cui, W Yang, W Zhang, K Zhu, JD Spitler… - Energy and Built …, 2024 - Elsevier
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 …

Group performance of energy piles under cyclic and variable thermal loading

J Fang, G Kong, Q Yang - Journal of Geotechnical and …, 2022 - ascelibrary.org
Energy piles, a new type of heat exchanger that serves dual purposes, have gained
increasing attention due to the growing energy demand and corresponding carbon …

Field test on thermal control for bridge piers on plateau through energy pile

T Wang, H Liu, G Kong, C Wang, X Hu - Renewable Energy, 2024 - Elsevier
This study presents a sustainable thermal control method (energy pile technology) for bridge
piers in high-altitude regions, addressing the challenges posed by temperature variations in …

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 …

Centrifuge modeling of cyclic nonsymmetrical thermally loaded energy pile groups in clay

CWW Ng, A Farivar, SMMH Gomaa… - Journal of Geotechnical …, 2021 - ascelibrary.org
Heat transfer from/to energy piles can cause plastic contraction of soft clay with a low
overconsolidation ratio (OCR) during heating and cooling. This can lead to thermally …

Heat transfer and bearing characteristics of energy piles

J **e, Y Qin - Energies, 2021 - mdpi.com
Energy piles, combined ground source heat pumps (GSHP) with the traditional pile
foundation, have the advantages of high heat transfer efficiency, less space occupation and …

Heat transfer performance of energy piles in seasonally frozen soil areas

X Ding, C Peng, C Wang, G Kong - Renewable Energy, 2022 - Elsevier
Energy piles constitute a combination of ground source heat pump and building pile
foundation technology. Energy piles can not only exchange heat with soil and extract …

Numerical investigations on effects of mechanical and geometrical characteristics on thermally induced group behavior of field-scale energy piles

J Fang, S Feng, Y Zhao, G Kong, H Chen - Computers and Geotechnics, 2023 - Elsevier
Energy pile groups generally exhibit different thermomechanical behavior from single
energy piles. Aiming to investigate the group behavior of energy piles, three-dimensional …

Energy, environmental and economic performance evaluation of energy pile system under different climate conditions

C Han, C Zhu, Y Shen, XB Yu - Energy Conversion and Management, 2022 - Elsevier
Energy pile is an innovative geothermal heat exchanger (GHE) in ground source heat pump
(GSHP) system, which integrates GHE pipe into concrete pile, and therefore, provides a …

Energy pile-based ground source heat pump system with seasonal solar energy storage

Q Ma, J Fan, H Liu - Renewable Energy, 2023 - Elsevier
Decarbonization of the building sector represents a huge potential to reduce greenhouse
gas emissions. An energy pile-based ground source heat pump system coupled with …