Maragna, C and Loveridge, F orcid.org/0000-0002-6688-6305 (2021) A New Approach for Characterizing Pile Heat Exchangers Using Thermal Response Tests. Energies, 14 (12). 3375. ISSN 1996-1073
Abstract
Pile heat exchangers offer a cost effective route to implementation of ground-source heat pump systems for many large commercial buildings compared with traditional boreholes. Such projects typically use thermal response tests to determine the key input parameters for system design, namely soil thermal conductivity and heat exchanger thermal resistance. However, this brings challenges for pile heat exchanger based systems, where in situ thermal response tests are known to be less reliable due to the large thermal capacity of the pile. This paper presents a new “black box” resistance capacitive model for applications to pile thermal response tests. The approach is tested against case study data and shown to perform well. Additional test duration savings are shown to be possible if a novel combination of borehole and pile thermal response tests is applied together to determine design parameters.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2021 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). |
Keywords: | thermal response testing; pile heat exchanger; energy piles; ground-source heat pump systems |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Civil Engineering (Leeds) |
Funding Information: | Funder Grant number Royal Academy of Engineering RF116 |
Depositing User: | Symplectic Publications |
Date Deposited: | 09 Jun 2021 13:18 |
Last Modified: | 09 Jun 2021 13:18 |
Status: | Published |
Publisher: | MDPI |
Identification Number: | 10.3390/en14123375 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:175035 |