Shafagh, I, Rees, S and Loveridge, F orcid.org/0000-0002-6688-6305 (2020) Investigations into Thermal Resistance of Tunnel Lining Heat Exchangers. In: E3S Web of Conferences. 2nd International Conference on Energy Geotechnics, 20-23 Sep 2020, La Jolla, California, USA. EDP Open
Abstract
Geothermal energy is a promising and sustainable source that can reduce current dependence on conventional fuels for thermal energy production. To exploit this source of energy thermo-active geostructures such as tunnel lining heat exchangers are being investigated theoretically as well as experimentally. These geostructures are composed of concrete panels embedded with reinforcement cages fitted with absorber pipes. Several engineering projects in China, Finland and Italy have deployed such heat exchangers in tunnels. To achieve efficient energy production, characterisation of these systems require realistic models of the substructure heat exchanger. Therefore investigations into thermal resistance of the heat exchanger is vital. The present study is concerned with quantifying the thermal resistance of tunnel lining heat exchangers where the thermal boundary surfaces are applied at surfaces representing the adjacent ground and the exposed concrete, in addition to the pipe surface. Steady state temperature distribution in a two dimensional cross section of a tunnel lining heat exchanger is investigated using the boundary collocation least squares method. Design parameters including pipe and tunnel lining specifications are used as model inputs.
Metadata
Item Type: | Proceedings Paper |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © The Authors, published by EDP Sciences. This is an open access article distributed under the terms of the Creative Commons Attribution License 4.0 (http://creativecommons.org/licenses/by/4.0/). |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Civil Engineering (Leeds) |
Funding Information: | Funder Grant number EPSRC (Engineering and Physical Sciences Research Council) EP/R013535/1 EPSRC (Engineering and Physical Sciences Research Council) EP/S001417/1 |
Depositing User: | Symplectic Publications |
Date Deposited: | 10 Aug 2020 10:36 |
Last Modified: | 25 Jun 2023 22:22 |
Status: | Published |
Publisher: | EDP Open |
Identification Number: | 10.1051/e3sconf/202020506006 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:164087 |