Factors influencing collection performance of near surface interseasonal ground energy collection and storage systems

Muñoz Criollo, José Javier, Cleall, Peter John ORCID: https://orcid.org/0000-0002-4005-5319 and Rees, Stephen William ORCID: https://orcid.org/0000-0001-6745-2691 2016. Factors influencing collection performance of near surface interseasonal ground energy collection and storage systems. Geomechanics for Energy and the Environment 6 , pp. 45-57. 10.1016/j.gete.2016.04.001

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Abstract

The influence of surface boundary conditions, varying climatic conditions and engineering material parameters on the collection performance of near surface interseasonal ground energy collection and storage systems are investigated. In particular, the performance of a proposed design of an interseasonal heat storage system which has also been investigated by others as part of a full scale demonstration project is considered. A numerical model is developed and validated against field data. It is then applied to undertake a series of simulations with varying system parameters. It is found that (i) higher values of thermal conductivity of the storage layer result in increased storage of thermal energy and lower peak temperatures, (ii) system heat losses are strongly influenced by the performance of insulation layers, (iii) warmer climatic conditions provide more thermal energy available to be stored; however, changes in the amplitude of seasonal air temperature variations have an effect on the rate of collection of thermal energy and (iv) the use of correct surface boundary conditions is critical in modelling the dynamics of these systems.

Item Type:	Article
Date Type:	Publication
Status:	Published
Schools:	Advanced Research Computing @ Cardiff (ARCCA) Engineering
Subjects:	T Technology > TA Engineering (General). Civil engineering (General)
Publisher:	Elsevier
ISSN:	2352-3808
Related URLs:	http://www.journals.elsevier.com/geomech...
Date of First Compliant Deposit:	13 April 2016
Date of Acceptance:	7 April 2016
Last Modified:	05 May 2023 00:40
URI:	https://orca.cardiff.ac.uk/id/eprint/89202

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