A preliminary study of the effect of groundwater flow on the thermal front created by borehole heat exchangers

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Title: A preliminary study of the effect of groundwater flow on the thermal front created by borehole heat exchangers
Authors: Tolooiyan, Ali
Hemmingway, Phil
Permanent link: http://hdl.handle.net/10197/3946
Date: Dec-2014
Abstract: This paper presents an analysis performed using a coupled TEMP/W-SEEP/W finite element model to consider both the conducive and convective effects of groundwater flow on the thermal regime created by a ground source energy system. The change in the development of the sub-surface thermal regime created by ground source energy borehole heat exchangers caused by a groundwater flow across a site, relative to a scenario where groundwater flow does not exist is examined. Analysis is performed using finite element formulations of both single borehole and multi borehole systems. The results of this work show that even a modest groundwater flow across a site can lead to a significant change in the development of the sub-surface thermal regime. It also shows that groundwater flow can result in implications for: proposed developments incorporating ground source energy systems; nearby existing ground source energy systems; potential future nearby ground source energy systems and the use of established software packages currently used for the design of ground source energy systems in the industry.
Type of material: Journal Article
Publisher: OUP
Copyright (published version): 2012 OUP
Keywords: Geothermal energy;Groundwater;Closed loop;Finite element modelling;Ireland;Borehole heat exchanger
Subject LCSH: Geothermal resources
Ground source heat pump systems
Groundwater
Finite element method
DOI: 10.1093/ijlct/cts077
Language: en
Status of Item: Peer reviewed
Appears in Collections:Biosystems and Food Engineering Research Collection

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