Thermal and economic analysis of heat exchangers as part of a geothermal district heating scheme in the Cheshire Basin, UK

Brown, C. S. , Cassidy, N. J., Egan, S. S. and Griffiths, D. (2022) Thermal and economic analysis of heat exchangers as part of a geothermal district heating scheme in the Cheshire Basin, UK. Energies, 15(6), 1983. (doi: 10.3390/en15061983)

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Abstract

Heat exchangers are vital to any geothermal system looking to use direct heat supplied via a district heat network. Attention on geothermal schemes in the UK has been growing, with minimal attention on the performance of heat exchangers. In this study, different types of heat exchangers are analysed for the Cheshire Basin as a case study, specifically the Crewe area, to establish their effectiveness and optimal heat transfer area. The results indicate that counter-current flow heat exchangers have a higher effectiveness than co-current heat exchangers. Optimisation of the heat exchange area can produce total savings of £43.06 million and £71.5 million, over a 25-year lifetime, in comparison with a fossil-fuelled district heat network using geothermal fluid input temperatures of 67 °C and 86 °C, respectively.

Item Type:Articles
Additional Information:Funding: NERC grant reference number NE/M00998X/1.
Keywords:Cheshire Basin, heat exchanger, co-current, counter-current, district heat network.
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Brown, Dr Christopher
Creator Roles:
Brown, C. S.Conceptualization, Methodology, Software, Validation, Formal analysis, Investigation, Resources, Data curation, Writing – original draft, Writing – review and editing, Visualization
Authors: Brown, C. S., Cassidy, N. J., Egan, S. S., and Griffiths, D.
College/School:College of Science and Engineering > School of Engineering > Systems Power and Energy
Journal Name:Energies
Publisher:MDPI
ISSN:1996-1073
ISSN (Online):1996-1073
Published Online:09 March 2022
Copyright Holders:Copyright © 2022 The Authors
First Published:First published in Energies 15(6): 1983
Publisher Policy:Reproduced under a Creative Commons License

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