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Title: Experimental thermal performance analysis of ground heat exchangers for space heating and cooling applications
Authors: Sivasakthivel T.
Philippe M.
Murugesan, Krishnan
Verma V.
Hu P.
Published in: Renewable Energy
Abstract: In recent decades, ground source heat pump systems have become popular for space heating and cooling applications. In both modes of operation, GSHP needs to interact with the ground through GHX. The thermal performance analysis of single and double U-tube heat exchangers are discussed in this paper by focusing on its effectiveness, ground temperatures, heat extraction & injection rate and its effects on surrounding ground formations. Initially the method of calculating length of GHX for a given heat load is explained, then the effectiveness of GHX is defined. Experimental set up used to study the performance of single and double U-tube GHX at bureau of geological and mining research (BRGM), France is explained. Results obtained from the experimental study shows that the average effectiveness of single U-tube heat exchanger in heating and cooling modes are 0.34 and 0.40 respectively and for double U-tube, it is 0.46 and 0.57 respectively. In both the heat exchangers, the average effectiveness is observed to be high in cooling mode operation, the reason may be that in cooling mode operation, the temperature difference between the heat carrier fluid and the ground is found to be high compared to the difference observed during heating mode operation. © 2017 Elsevier Ltd
Citation: Renewable Energy (2017), 113(): 1168-1181
Issue Date: 2017
Publisher: Elsevier Ltd
Keywords: Cooling
Ground heat exchanger
Ground source heat pump
Ground temperature
ISSN: 9601481
Author Scopus IDs: 55962921000
Author Affiliations: Sivasakthivel, T., Department of Chemical Engineering, Tokyo University of Agriculture and Technology, Koganei, Tokyo, Japan
Philippe, M., Division of Geothermal Resources (DGR), Bureau of Geological and Mining Research (BRGM), Orléans, France
Murugesan, K., Department of Mechanical and Industrial Engineering, Indian Institute of Technology Roorkee, India
Verma, V., Department of Energy Engineering, Tezpur UniversityAssam, India
Hu, P., School of Environmental Science and Engineering, Huazhong University of Science and Technology, Wuhan, China
Corresponding Author: Sivasakthivel, T.; Department of Chemical Engineering, Tokyo University of Agriculture and Technology, Koganei, Japan; email:
Appears in Collections:Journal Publications [ME]

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