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Title: Effects of different parameters on transient heat transfer surrounding energy piles in unsaturated soils
Energy piles are one of the best candidates to harvest shallow geothermal energy. Continuing harvesting and rejecting thermal energy from/to the ground may permanently change the soil temperature and consequently, may lead to different soil resistance parameters. Therefore, careful prediction of soil temperature variation close to energy geostructures is needed. This paper investigates the various parameters of heat source and soil media on transient heat transport in unsaturated soils. Green’s function and the method of separation of variables are employed to analytically analyze the transient heat transfer in the vicinity of energy piles. Results indicate that although higher heat flux increases the soil temperature surrounding a heat source, it has negligible effect on thermal influence zone where the soil temperature varies. In contrast, higher thermal diffusivity results in lower soil temperature close to a heat source while it increases the thermal influence zone.  more » « less
Award ID(s):
1804822
NSF-PAR ID:
10273655
Author(s) / Creator(s):
; ;
Editor(s):
McCartney, J.S.; Tomac, I.
Date Published:
Journal Name:
E3S Web of Conferences
Volume:
205
ISSN:
2267-1242
Page Range / eLocation ID:
05015
Format(s):
Medium: X
Sponsoring Org:
National Science Foundation
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