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The potential use of mine water for a district heating scheme at Caerau, Upper Llynfi valley, South Wales, UK

Peter Brabham, Manju Manju, Hywel Thomas Orcid Logo, Gareth Farr, Robert Francis, Ramsha Sahid, Sivachidambaram Sadasivam

Quarterly Journal of Engineering Geology and Hydrogeology, Volume: 53, Issue: 1, Pages: 145 - 158

Swansea University Author: Hywel Thomas Orcid Logo

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DOI (Published version): 10.1144/qjegh2018-213

Abstract

The feasibility of recovering heat energy from mine water contained within an abandoned coal mine in South Wales is assessed for a proposed district heating scheme. The study area is the village of Caerau, in the Upper Llynfi Valley, Bridgend County Borough, South Wales, UK, comprising around 750 re...

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Published in: Quarterly Journal of Engineering Geology and Hydrogeology
ISSN: 1470-9236 2041-4803
Published: Geological Society of London 2020
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URI: https://cronfa.swan.ac.uk/Record/cronfa52885
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first_indexed 2019-11-26T13:15:42Z
last_indexed 2020-11-21T04:07:18Z
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spelling 2020-11-20T09:49:07.0156583 v2 52885 2019-11-26 The potential use of mine water for a district heating scheme at Caerau, Upper Llynfi valley, South Wales, UK 08ebc76b093f3e17fed29281f5cb637e 0000-0002-3951-0409 Hywel Thomas Hywel Thomas true false 2019-11-26 CIVL The feasibility of recovering heat energy from mine water contained within an abandoned coal mine in South Wales is assessed for a proposed district heating scheme. The study area is the village of Caerau, in the Upper Llynfi Valley, Bridgend County Borough, South Wales, UK, comprising around 750 residential houses, a primary school and 17 commercial properties. This paper describes: an archival geological and mining desk study focussed on Caerau colliery, consideration of regional mine linkages, GIS techniques used to create a 3D initial conceptual geological mine model of Caerau workings, permitting and licencing requirements, community engagement activities undertaken and the findings of a single exploratory borehole. The borehole intersected a void space in flooded mine workings around the horizon of the Six Foot seam at a depth of 224 m below ground level, as predicted by the conceptual mine model. The rest water level within the borehole lies at 92m below ground level and the measured in situ temperature of the mine water at the base of the borehole was 20.3 °C. An unexpectedly high and sustained geothermal gradient of approximately 53 °C/km was calculated from repeated measured temperature profiles. Journal Article Quarterly Journal of Engineering Geology and Hydrogeology 53 1 145 158 Geological Society of London 1470-9236 2041-4803 1 2 2020 2020-02-01 10.1144/qjegh2018-213 COLLEGE NANME Civil Engineering COLLEGE CODE CIVL Swansea University 2020-11-20T09:49:07.0156583 2019-11-26T11:07:27.6890032 Faculty of Science and Engineering School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Civil Engineering Peter Brabham 1 Manju Manju 2 Hywel Thomas 0000-0002-3951-0409 3 Gareth Farr 4 Robert Francis 5 Ramsha Sahid 6 Sivachidambaram Sadasivam 7 52885__16019__799b96a9bc834aee8ff120e1634279c8.pdf brabham2019(2).pdf 2019-12-03T10:24:27.3619400 Output 4997141 application/pdf Accepted Manuscript true 2020-11-05T00:00:00.0000000 false
title The potential use of mine water for a district heating scheme at Caerau, Upper Llynfi valley, South Wales, UK
spellingShingle The potential use of mine water for a district heating scheme at Caerau, Upper Llynfi valley, South Wales, UK
Hywel Thomas
title_short The potential use of mine water for a district heating scheme at Caerau, Upper Llynfi valley, South Wales, UK
title_full The potential use of mine water for a district heating scheme at Caerau, Upper Llynfi valley, South Wales, UK
title_fullStr The potential use of mine water for a district heating scheme at Caerau, Upper Llynfi valley, South Wales, UK
title_full_unstemmed The potential use of mine water for a district heating scheme at Caerau, Upper Llynfi valley, South Wales, UK
title_sort The potential use of mine water for a district heating scheme at Caerau, Upper Llynfi valley, South Wales, UK
author_id_str_mv 08ebc76b093f3e17fed29281f5cb637e
author_id_fullname_str_mv 08ebc76b093f3e17fed29281f5cb637e_***_Hywel Thomas
author Hywel Thomas
author2 Peter Brabham
Manju Manju
Hywel Thomas
Gareth Farr
Robert Francis
Ramsha Sahid
Sivachidambaram Sadasivam
format Journal article
container_title Quarterly Journal of Engineering Geology and Hydrogeology
container_volume 53
container_issue 1
container_start_page 145
publishDate 2020
institution Swansea University
issn 1470-9236
2041-4803
doi_str_mv 10.1144/qjegh2018-213
publisher Geological Society of London
college_str Faculty of Science and Engineering
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Civil Engineering{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Civil Engineering
document_store_str 1
active_str 0
description The feasibility of recovering heat energy from mine water contained within an abandoned coal mine in South Wales is assessed for a proposed district heating scheme. The study area is the village of Caerau, in the Upper Llynfi Valley, Bridgend County Borough, South Wales, UK, comprising around 750 residential houses, a primary school and 17 commercial properties. This paper describes: an archival geological and mining desk study focussed on Caerau colliery, consideration of regional mine linkages, GIS techniques used to create a 3D initial conceptual geological mine model of Caerau workings, permitting and licencing requirements, community engagement activities undertaken and the findings of a single exploratory borehole. The borehole intersected a void space in flooded mine workings around the horizon of the Six Foot seam at a depth of 224 m below ground level, as predicted by the conceptual mine model. The rest water level within the borehole lies at 92m below ground level and the measured in situ temperature of the mine water at the base of the borehole was 20.3 °C. An unexpectedly high and sustained geothermal gradient of approximately 53 °C/km was calculated from repeated measured temperature profiles.
published_date 2020-02-01T04:05:31Z
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score 10.998116

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