Performance of ground heat exchangers: A comprehensive review of recent advances

H Javadi, SSM Ajarostaghi, MA Rosen, M Pourfallah - Energy, 2019 - Elsevier
The importance of investigating and addressing climate change, through the use of
renewable energy, is substantially increasing. Shallow geothermal energy is usually a …

Actively heated fiber optics based thermal response test: A field demonstration

B Zhang, K Gu, B Shi, C Liu, P Bayer, G Wei… - … and Sustainable Energy …, 2020 - Elsevier
Accurate estimation of thermal ground properties is needed to optimally apply shallow
geothermal energy technologies, which are of growing importance for the heating and …

Deep coaxial borehole heat exchanger: Analytical modeling and thermal analysis

Y Luo, H Guo, F Meggers, L Zhang - Energy, 2019 - Elsevier
Borehole heat exchangers (BHEs) are often used to harvest geothermal energy at shallower
depths. The standard increase in temperature with depth is generally ignored. Without high …

Numerical modelling of deep coaxial borehole heat exchangers in the Cheshire Basin, UK

CS Brown, NJ Cassidy, SS Egan, D Griffiths - Computers & Geosciences, 2021 - Elsevier
Few deep wells have been drilled in the Cheshire Basin, resulting in high geological and
financial risk of geothermal developments. Although the geothermal gradient in the basin …

Thermal response tests on deep borehole heat exchangers with geothermal gradient

RA Beier - Applied Thermal Engineering, 2020 - Elsevier
Vertical borehole heat exchangers are often coupled to heat pumps to transfer heat between
the ground and the inside of a building. A transient heat transfer model has been developed …

Thermal response tests on deep boreholes through multiple ground layers

RA Beier, S Morchio, M Fossa - Geothermics, 2022 - Elsevier
Distributed thermal response tests (DTRTs) on vertical boreholes estimate design
parameters, which are used in the coupling of these boreholes to heat pumps. A semi …

Models of thermal response tests on deep coaxial borehole heat exchangers through multiple ground layers

RA Beier, M Fossa, S Morchio - Applied Thermal Engineering, 2021 - Elsevier
Ground source heat pumps are often coupled with vertical boreholes in order to heat and
cool buildings. As the maximum depth of boreholes has increased, the ranges of …

Borehole resistance and vertical temperature profiles in coaxial borehole heat exchangers

RA Beier, J Acuña, P Mogensen, B Palm - Applied energy, 2013 - Elsevier
Ground source heat pump systems are often coupled to the ground by circulating a fluid
through vertical Borehole Heat Exchangers (BHEs). The design of a system requires …

Advanced thermal response tests: A review

S Wilke, K Menberg, H Steger, P Blum - Renewable and Sustainable …, 2020 - Elsevier
In this study, the historical and technical development and the current status of distributed
(DTRT) and enhanced (ETRT) thermal response tests (TRT) are reviewed. The different test …

A coupled heat transfer model of medium-depth downhole coaxial heat exchanger based on the piecewise analytical solution

L Ma, Y Zhao, H Yin, J Zhao, W Li, H Wang - Energy Conversion and …, 2020 - Elsevier
To describe the heat transfer processes of medium-depth downhole coaxial heat
exchangers (MDCHEs) effectively, an analytical solution that couples the transient heat …