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  5. Design and development of a low-cost thermal response rig
 
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Design and development of a low-cost thermal response rig

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Author(s)
Hemmingway, Phil 
Long, Michael (Michael M.) 
Uri
http://hdl.handle.net/10197/3772
Date Issued
01 August 2012
Date Available
03T13:45:45Z September 2012
Abstract
A thermal response test (TRT) is a controlled insitu test during which a known quantity of heat energy is injected into a closed loop heat-exchanger pipe while the heat dissipation rate into the surrounding ground is monitored. Results from a test can be interpreted to determine a number of ground thermal parameters with are vital design requirements for any medium to large scale ground source energy system. This paper describes the design and construction of a low cost TRT rig and compares the results obtained from a test using the constructed rig and a commercially built rig in order to evaluate the accuracy of the constructed equipment. The TRT rig is designed in accordance with the following principles: keep construction costs low, improve the cost-efficiency of TRT testing by incorporating remote data transmission capability and ensure attainment of sufficient accuracy to satisfy the design requirements of ground source energy systems. Analysis of data collected by the TRT rigs result in a calculated thermal conductivity of 1.9 W/mK in both cases. This value falls within the range expected for the tested geological formation and confirms the accuracy of both test rigs.
Sponsorship
Irish Research Council for Science, Engineering and Technology
Type of Material
Journal Article
Publisher
Institution of Civil Engineers
Journal
Proceedings of the Institution of Civil Engineers - Energy
Volume
165
Issue
3
Start Page
137
End Page
148
Copyright (Published Version)
2012 ICE Publishing Ltd.
Keywords
  • TRT

  • Thermal response test...

  • Geothermal

  • Ground source energy

  • Renewable energy

  • Site investigation

  • Research & developmen...

Subject – LCSH
Heat storage--Testing
Geothermal engineering
Thermal conductivity--Testing
Renewable energy sources
DOI
10.1680/ener.11.00029
Language
English
Status of Item
Peer reviewed
ISSN
1751-4223
1751-4231 (E-ISSN)
This item is made available under a Creative Commons License
https://creativecommons.org/licenses/by-nc-sa/1.0/
Owning collection
Biosystems and Food Engineering Research Collection
Scopus© citations
5
Acquisition Date
Jan 31, 2023
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