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 …

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 …

Numerical and experimental validation of the applicability of active‐DTS experiments to estimate thermal conductivity and groundwater flux in porous media

N Simon, O Bour, N Lavenant, G Porel… - Water Resources …, 2021 - Wiley Online Library
Groundwater flow depends on the heterogeneity of hydraulic properties whose field
characterization is challenging. Recently developed active‐Distributed Temperature …

[HTML][HTML] Novel use of the enhanced thermal response test in crystalline bedrock

P Hakala, S Vallin, T Arola, I Martinkauppi - Renewable Energy, 2022 - Elsevier
The thermophysical properties of bedrock are of primary importance when designing
borehole thermal energy systems. We present a novel use of the Enhanced Thermal …

An ADTS toolbox for automatically interpreting active distributed temperature sensing measurements

N Simon, O Bour - Groundwater, 2023 - Wiley Online Library
Active distributed temperature sensing (ADTS) experiments are very useful to provide in‐situ
and distributed estimates of thermal conductivities of the subsurface and of groundwater …

Repeated ETRTs in a complex stratified geological setting: high-resolution thermal conductivity identification by multiple linear regression

G Dalla Santa, P Pasquier, L Schenato… - Journal of Geotechnical …, 2022 - ascelibrary.org
For the design of ground-source heat-pump systems, the local subsoil is an invariant factor.
To improve the evaluation of the local heat exchange capability, significant efforts recently …

Numerical analysis of borehole heat exchanger using a single shape-stabilized phase change material in heating and cooling seasons

Z Deng, Y Nian, Q Liu, W Cheng - Journal of Energy Storage, 2023 - Elsevier
Borehole heat exchanger (BHE) plays a key role in ground source heat pump (GHSP) and
underground thermal energy storage for heating and cooling, which can backfill with phase …

Clogging detection and productive layers identification along boreholes using Active Distributed Temperature Sensing

J Godinaud, M Klepikova, F Larroque, N Guihéneuf… - Journal of …, 2023 - Elsevier
Abstract Fiber-Optic Active Distributed Temperature Sensing (FO-ADTS) experiments were
performed on an Aquifer Thermal Energy Storage system (ATES) site located on the …

Evaluation of subsurface heat capacity through oscillatory thermal response tests

N Giordano, L Lamarche, J Raymond - Energies, 2021 - mdpi.com
Two methods are currently available to estimate in a relatively short time span the
subsurface heat capacity:(1) laboratory analysis of rock/soil samples;(2) measure the heat …

Reviewing the modeling aspects and practices of shallow geothermal energy systems

P Christodoulides, A Vieira, S Lenart, J Maranha… - Energies, 2020 - mdpi.com
Shallow geothermal energy systems (SGES) may take different forms and have recently
taken considerable attention due to energy geo-structures (EGS) resulting from the …