Numerical and finite element analysis of heat transfer in a closed loop geothermal system

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Show simple item record Hemmingway, Phil Tolooiyan, Ali 2013-04-08T14:28:55Z 2014-08-28T03:00:11Z 2013-08
dc.identifier.citation International Journal of Green Energy en
dc.description.abstract Analysis of the thermal regime created by a geothermal borehole heat exchanger is performed using a closed form radial heat flow equation, a geothermal borehole heat exchanger design tool and a finite element model. Climatic, heat exchanger construction and building load data are entered into the heat exchanger design tool in order to create a theoretical model along with thermal parameters from a number of geological formations. Output data from the design tool model are used in conjunction with the closed form radial heat flow equation to calculate the predicted temperature with respect to time and distance from the heat exchanger for the modelled ground formations. The output data from the design tool is also used to create a number of finite element method models against which the predictions calculated using the closed form radial heat flow equation can be compared. A good correlation between the temperatures predicted by the finite element models and the closed form equation calculations is observed. However when used within its recommended limiting conditions, the closed form equation is shown to slightly underestimate the temperature of the ground when compared to the finite element model predictions. The limiting conditions associated with the closed form equation are discussed in the context of the output from the finite element method models. en
dc.description.sponsorship Irish Research Council for Science, Engineering and Technology en
dc.language.iso en en
dc.publisher Taylor & Francis en
dc.subject Geothermal energy en
dc.subject Ground source energy en
dc.subject Finite element analysis en
dc.subject Heat conduction en
dc.subject Renewable energy en
dc.title Numerical and finite element analysis of heat transfer in a closed loop geothermal system en
dc.type Journal Article en
dc.internal.availability Full text available en
dc.status Not peer reviewed en
dc.identifier.volume 11 en
dc.identifier.issue 2
dc.identifier.startpage 206
dc.identifier.endpage 223
dc.neeo.contributor Hemmingway|Phil|aut|
dc.neeo.contributor Tolooiyan|Ali|aut|
dc.description.admin Author has checked copyright en
dc.description.admin Check for published version - once published update Embargo date for 1 year from date of publication - OR 27/02/2013 en
dc.description.admin kpw26/3/13 en
dc.internal.rmsid 308472014 2013-01-31T09:46:37Z

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