Imperial College London
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PROFESSOR LIDIJA ZDRAVKOVIC

Faculty of Engineering, Department of Civil and Environmental Engineering

Professor of Computational Geomechanics
 
 
 
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Contact

 

+44 (0)20 7594 6076l.zdravkovic

 
 
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Location

 

530Skempton BuildingSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Gawecka:2020:10.1061/(ASCE)GM.1943-5622.0001658,
author = {Gawecka, K and Taborda, D and Potts, D and Sailer, E and Cui, W and Zdravkovic, L},
doi = {10.1061/(ASCE)GM.1943-5622.0001658},
journal = {International Journal of Geomechanics},
pages = {04020041--1--04020041--14},
title = {Finite element modelling of heat transfer in ground source energy systems with heat exchanger pipes},
url = {http://dx.doi.org/10.1061/(ASCE)GM.1943-5622.0001658},
volume = {20},
year = {2020}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - Ground source energy systems (GSES) utilise low enthalpy geothermal energy and have been recognised as an efficient means of providing low carbon space heating and cooling. This study focuses on GSES where the exchange of heat between the ground and the building is achieved by circulating a fluid through heat exchanger pipes. Although numerical analysis is a powerful tool for exploring the performance of such systems, simulating the highly advective flows inside the heat exchanger pipes can be problematic. This paper presents an efficient approach for modelling these systems using the finite element method (FEM). The pipes are discretised with line elements and the conductive-advective heat flux along them is solved using the Petrov-Galerkin FEM instead of the conventional Galerkin FEM. Following extensive numerical studies, a modelling approach for simulating heat exchanger pipes, which employs line elements and a special material with enhanced thermal properties, is developed. The modelling approach is then adopted in three-dimensional simulations of two thermal response tests, with an excellent match between the computed and measured temperatures being obtained.
AU  - Gawecka,K
AU  - Taborda,D
AU  - Potts,D
AU  - Sailer,E
AU  - Cui,W
AU  - Zdravkovic,L
DO  - 10.1061/(ASCE)GM.1943-5622.0001658
EP  - 1
PY  - 2020///
SN  - 1532-3641
SP  - 04020041
TI  - Finite element modelling of heat transfer in ground source energy systems with heat exchanger pipes
T2  - International Journal of Geomechanics
UR  - http://dx.doi.org/10.1061/(ASCE)GM.1943-5622.0001658
UR  - https://ascelibrary.org/doi/10.1061/%28ASCE%29GM.1943-5622.0001658
UR  - http://hdl.handle.net/10044/1/74370
VL  - 20
ER  -
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