Research on Thermal Conductivity of Grouting Material for Underground Heat Exchanger of GSHP System

DOI

10.2991/ap3er-15.2015.41How to use a DOI?

Keywords

coefficient of thermal conductivity; ground-source heat pump; ground-buried pipe heat exchanger; the grouting material; experiment

Abstract

As we know, thermal properties of grouting material between the pipe and the stratum is one of the most factor to the efficiency and cost of the ground-source heat pump system. In this paper, based on the research of the grouting material at home and abroad, it was tested with a different ratios of bentonite-sand by steady-state gauges( JTRG-III conductometers with steady state thermal flow). The thesis involves physical characteristic indexs of the testing, such as the density of the bentonite-sand, moisture content, void ratio, saturation and coefficient of thermal conductivity etc, and it will be adjusted to provide reliable basis for the ground-source heat pump technology application.

Copyright

© 2015, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Lele Yu
AU  - Wanlu Huang
PY  - 2015/06
DA  - 2015/06
TI  - Research on Thermal Conductivity of Grouting Material for Underground Heat Exchanger of GSHP System
BT  - Proceedings of the 2015 Asia-Pacific Energy Equipment Engineering Research Conference
PB  - Atlantis Press
SP  - 173
EP  - 176
SN  - 2352-5401
UR  - https://doi.org/10.2991/ap3er-15.2015.41
DO  - 10.2991/ap3er-15.2015.41
ID  - Yu2015/06
ER  -