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Dynamic thermal modelling of horizontal ground-source heat pumps

Gan, Guohui

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Authors

GUOHUI GAN GUOHUI.GAN@NOTTINGHAM.AC.UK
Associate Professor



Abstract

A computer program has been developed for numerical simulation of the dynamic thermal performance of horizontally coupled heat exchangers for ground-source heat pumps, taking account of dynamic variations of climatic, load and soil conditions. The program was used to investigate the effects of operating and start times, installation depth and soil freezing on the heat exchanger performance. It is shown that the rate of heat extraction decreases with increasing operating time. Operating a heat pump with an earlier start date in autumn would give rise to a higher amount of cumulative heat extraction. Also, a heat exchanger installed at a shallower depth can provide a larger heat extraction rate at the early stage of heating operation. In addition, soil freezing enhances heat extraction.

Journal Article Type Article
Publication Date Jun 1, 2013
Deposit Date Apr 15, 2014
Publicly Available Date Apr 15, 2014
Journal International Journal of Low-Carbon Technologies
Print ISSN 1748-1317
Electronic ISSN 1748-1317
Publisher Oxford University Press
Peer Reviewed Peer Reviewed
Volume 8
Issue 2
DOI https://doi.org/10.1093/ijlct/ctt012
Public URL https://nottingham-repository.worktribe.com/output/1001989
Publisher URL http://ijlct.oxfordjournals.org/content/8/2/95

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