[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 …

The novel designs for increasing heat transfer in ground heat exchangers to improve geothermal heat pump efficiency

R Saeidi, A Karimi, Y Noorollahi - Geothermics, 2024 - Elsevier
Heat transfer between ground heat exchangers (GHE) and the soil is highly important for the
overall efficiency of geothermal heat pump systems. Therefore, the present study …

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 …

Thermomechanical response of field-scale energy wall under different heating operations

S Hu, G Kong, H Aboel-Naga, Q Yang - Journal of Geotechnical and …, 2024 - ascelibrary.org
This study conducted field tests to investigate the thermomechanical response of an energy
wall under practical intermittent and experimental monotone operation modes. Sensors and …

[HTML][HTML] A novel solution for vertical borehole heat exchangers in multilayered ground with the Robin boundary condition

Y Guo, J Zhao, WV Liu - Applied Thermal Engineering, 2024 - Elsevier
The ground surface condition is crucial in the thermal analysis of borehole heat exchange
(BHE) systems, as it directly influences the thermal regime within the subsurface. However …

Analytical models for heat transfer around a single ground heat exchanger in the presence of both horizontal and vertical groundwater flow considering a convective …

Y Zhou, Z Zheng, G Zhao - Energy, 2022 - Elsevier
Ground heat exchanges (GHEs) are widely applied in the ground source heat pump (GSHP)
system for exploration of shallow geothermal energy. Heat transfer around a single GHE in …

[HTML][HTML] Influence of site characteristics on the performance of shallow borehole heat exchanger arrays: A sensitivity analysis

Q Liu, F Weiland, P Pärisch, N Kracht, M Huang, T Ptak - Geothermics, 2023 - Elsevier
Using borehole heat exchangers (BHE) to extract shallow geothermal energy has grown
rapidly in recent years. How to maintain a long-term balanced, sustainable operation of the …

Numerical modeling of mixed convection near a vertical heat source in saturated granular soils

N Mehraeen, MM Ahmadi, O Ghasemi-Fare - Geothermics, 2022 - Elsevier
Accurate design of energy geostructures such as energy piles requires an exact prediction
of soil thermal responses close to the embedded heat sources in the ground. In saturated …

An analytical thermal model for vertical ground heat exchangers in layered soil with thermal resistance

X Zhou, S Hu, W Zhuo, X Zhang, Y Gao, D Sun… - Computers and …, 2025 - Elsevier
The space–time temperature distribution near ground heat exchangers is a crucial factor in
the rational design and a key consideration for the successful application of geothermal …

A novel study on influence of ground surface boundary conditions on thermal performance of vertical U-shaped ground heat exchanger

L Jia, L Lu, P Cui, J Chen, A Pan - Sustainable Cities and Society, 2024 - Elsevier
To better understand the influence of ground surface boundary conditions (GSBC) on the
thermal performances of U-shaped ground heat exchangers (UGHE), this study proposes a …