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Sustainability 2018, 10(2), 412; doi:10.3390/su10020412

A Study on Heat-Transfer Characteristics by a Ground-Heating Method

Department of Civil Engineering, Kumoh National Institute of Technology, Gumi, Gyeongbuk 39177, Korea
Received: 22 November 2017 / Revised: 21 January 2018 / Accepted: 28 January 2018 / Published: 6 February 2018
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The ground-heating method using the electric heating pipe improves many problems of the conventional soft-ground improvement method and the ground-heating method using fossil fuel. However, in order to use this method practically, it is necessary to experimentally verify the temperature change due to the discharge of water vapor, and also to compare the theoretical solution and numerical analysis for estimation of the temperature distribution. From the experimental result, the loss of heat energy due to the discharge of water vapor is very large. Because the linear heat-source model and numerical analysis cannot consider the heat-energy loss by water vapor, the temperature change is estimated to be large. Therefore, it is necessary to design the installation depth of the electric heating pipe to suppress the discharge of water vapor. View Full-Text
Keywords: soft-ground improvement; ground-heating method; electric heating pipe; heat-transfer characteristic soft-ground improvement; ground-heating method; electric heating pipe; heat-transfer characteristic

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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Park, M. A Study on Heat-Transfer Characteristics by a Ground-Heating Method. Sustainability 2018, 10, 412.

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