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

Christopher S. Brown, Nigel J. Cassidy, Stuart S. Egan and Dan Griffiths
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Christopher S. Brown: James Watt School of Engineering, University of Glasgow, Glasgow G12 8QQ, UK
Nigel J. Cassidy: Department of Civil Engineering, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK
Stuart S. Egan: School of Geography, Geology and the Environment, William Smith Building, Keele University, Keele, Staffordshire ST5 5BG, UK
Dan Griffiths: Cheshire East Council, Westfields, Middlewich Road, Sandbach CW11 1HZ, UK

Energies, 2022, vol. 15, issue 6, 1-17

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.

Keywords: Cheshire Basin; heat exchanger; co-current; counter-current; district heat network (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2022
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (4)

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