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Thermal and Economic Analysis of Heat Exchangers as Part of a Geothermal District Heating Scheme in the Cheshire Basin, UK

Brown, CS; Cassidy, NJ; Egan, S; Griffiths, D

Thermal and Economic Analysis of Heat Exchangers as Part of a Geothermal District Heating Scheme in the Cheshire Basin, UK Thumbnail


Authors

CS Brown

NJ Cassidy

D Griffiths



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 pound million and 71.5 pound million, over a 25-year lifetime, in comparison with a fossil-fuelled district heat network using geothermal fluid input temperatures of 67 degrees C and 86 degrees C, respectively.

Acceptance Date Mar 4, 2022
Publication Date Mar 9, 2022
Publicly Available Date Mar 29, 2024
Journal Energies
Publisher MDPI
Pages 1983 - 1983
DOI https://doi.org/10.3390/en15061983
Keywords Cheshire basin, heat exchanger, co-current, counter-current, district heat network
Publisher URL https://www.mdpi.com/1996-1073/15/6/1983

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