E3S Web Conf.
Volume 205, 20202nd International Conference on Energy Geotechnics (ICEGT 2020)
|Number of page(s)||6|
|Section||Minisymposium: Geothermal Use of Built Urban Infrastructures and the Shallow Subsurface for Energy Storage and Production (organized by Frank Wuttke, Thomas Nagel, Sebastian Bauer and David Smeulders)|
|Published online||18 November 2020|
Effect of anthropogenic heat sources in the shallow subsurface at city-scale
1 Engineering Department, University of Cambridge, Trumpington Street, Cambridge CB2 1PZ, United Kingdom
2 School of Civil and Environmental Engineering, University of New South Wales, Sydney, NSW 2052 Australia
3 British Geological Survey, Keyworth, Nottingham NG12 5GG, UK
4 British Geological Survey, Cardiff University, Park Place, CF10 3AT
* Corresponding author: email@example.com
Rapid rates of urbanisation are placing growing demands on cities for accommodation and transportation, with increasing numbers of basements and tunnel networks being built to meet these rising demands. Such subsurface structures constitute continuous heat sources and sinks, particularly if maintained at comfortable temperatures. At the city-scale, there is limited understanding of the effect of heat exchange of underground infrastructures with their environments, in part due to limited availability of long-term underground temperature data. The effects of underground temperature changes due anthropogenic heat fluxes can be significant, impacting ventilation and cooling costs of underground spaces, efficiency of geo-energy systems, quality and quantity of groundwater flow, and the health and maintenance of underground structures. In this paper we explore the impact of anthropogenic subsurface structures on the thermal climate of the shallow subsurface by developing a heat transfer model of the city of Cardiff, UK, utilising a recently developed semi-3D modelling approach.
© The Authors, published by EDP Sciences, 2020
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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