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Lookup NU author(s): Professor Paul Younger
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Ample distance between boreholes are critical to the sustainability of ground-source heating/cooling systems. The limitations on the use of ground source heating and cooling systems (GSHCS) can be examined by undertaking rigorous analysis of operating systems using complex numerical modeling techniques to gain insights into rates of thermal breakthrough from borehole to borehole. A recent installation showed some sobering results. For one, it will still take a considerable time for the temperature of pumped water to converge on that of re-injected water at the onset of thermal breakthrough. Also, the model assumes injection happens straight into the same aquifer horizon which is pumped and neglects conductive loss of heat to overlying or underlying strata. Nevertheless, by maximizing spacing between abstraction and re-injection points, mitigating the effects of borehole interference can be achieve.
Author(s): Younger P, Swan J
Publication type: Article
Publication status: Published
Journal: Geodrilling International
Year: 2007
Pages: 8-9
Print publication date: 01/09/2007
ISSN (print): 0969-3769
ISSN (electronic):
Publisher: Aspermont UK
