Proceedings of the 2017 6th International Conference on Energy, Environment and Sustainable Development (ICEESD 2017)

Experimental Study of Soil Thermal Properties Based on the Transient Method

Authors
Qizhi Hu, Jian Li, Jian Lin, Chao Xie
Corresponding Author
Qizhi Hu
Available Online April 2017.
DOI
https://doi.org/10.2991/iceesd-17.2017.70How to use a DOI?
Keywords
GSHP; Thermal Conductivity; Transient Plane Source Method; Moisture content; Dry density
Abstract
he soil thermal conductivity is an important parameter of heat efficiency in the application of ground source heat pump. We based on the principles of Transient Plane Source Method and selected clay and sandy soil from Yangtze River in Wuhan, using DRE - III multi-function rapid thermal conductivity tester to carry out soil thermal properties test under the condition of different water content, different dry density and different ratio of sand to clay. The results show that Coefficients of thermal conductivity of sand and clay increase with the increase of water content and dry density, and the effect of the water content is larger than that of dry density. In the thermal properties of sand and clay mixture experiment, it has the highest thermal conductivity when the ratio of sand to clay is 2:1. We analyzed the test results on the basis of experiment, and discussed the soil thermal properties and change mechanism. This study provides an important reference for the application of backfill to buried pipe in geothermal applications.
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Proceedings
2017 6th International Conference on Energy, Environment and Sustainable Development (ICEESD 2017)
Part of series
Advances in Engineering Research
Publication Date
April 2017
ISBN
978-94-6252-328-9
ISSN
2352-5401
DOI
https://doi.org/10.2991/iceesd-17.2017.70How to use a DOI?
Open Access
This is an open access article distributed under the CC BY-NC license.

Cite this article

TY  - CONF
AU  - Qizhi Hu
AU  - Jian Li
AU  - Jian Lin
AU  - Chao Xie
PY  - 2017/04
DA  - 2017/04
TI  - Experimental Study of Soil Thermal Properties Based on the Transient Method
BT  - 2017 6th International Conference on Energy, Environment and Sustainable Development (ICEESD 2017)
PB  - Atlantis Press
SN  - 2352-5401
UR  - https://doi.org/10.2991/iceesd-17.2017.70
DO  - https://doi.org/10.2991/iceesd-17.2017.70
ID  - Hu2017/04
ER  -