Journal Article

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

Ali Tolooiyan and Phil Hemmingway

in International Journal of Low-Carbon Technologies

Volume 9, issue 4, pages 284-295
Published in print December 2014 | ISSN: 1748-1317
Published online December 2012 | e-ISSN: 1748-1325 | DOI: http://dx.doi.org/10.1093/ijlct/cts077

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An analysis of the effects that groundwater flow has on the thermal regime created by a ground source energy system is presented. The change in the development of the sub-surface thermal regime caused by a groundwater flow across a site, relative to a scenario where groundwater flow does not exist, is examined. Analysis is performed using bespoke finite-element formulations of both single- 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.

Keywords: geothermal energy; groundwater flow; finite element; closed loop; heat transfer

Journal Article.  6663 words.  Illustrated.

Subjects: Energy Technology ; Environmental Sustainability

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