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Monitoring of thermo-hydrological behaviour in Green Infrastructure

Lookup NU author(s): Dr Anil Yildiz, Dr Ross Stirling, Professor Stephanie Glendinning

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This work is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0).


Abstract

The multi-purpose nature of Sustainable Drainage Systems (SuDS) or Green Infrastructure (GI) presents asignificant opportunity to store or recover heat for low carbon urban heating/cooling systems. The capacity of suchsystems for energy storage is strongly dependent on the thermal and hydrological boundary conditions, estimation oftheir feasibility requires a deep understanding of how atmospheric conditions and the near-surface hydrological regime affect heat transfer. A large-scale, outdoor lysimeter has been set up at the (UK) National Green Infrastructure Facility in order to monitor the influence of atmospheric conditions on hydrological and thermal properties of SuDS. Volumetric water content, matric suction and temperature were monitored at various depths and locations within the sand and topsoil layer. Additionally, thermal conductivity at multiple depths, and heat flux at the surface and bottom boundary were measured. Results of the initial monitoring phase, as well as, preliminary laboratory tests are presented herein and demonstrate the complex interaction between partial saturation and heat transfer. Further work investigates the effects of rainfall and heat injection using rainfall simulation and a variable-power heating cable, respectively.


Publication metadata

Author(s): Yildiz A, Stirling RA, Glendinning S

Editor(s): R. Cardoso, C. Jommi and E. Romero (Eds.)

Publication type: Conference Proceedings (inc. Abstract)

Publication status: Published

Conference Name: 4th European Conference on Unsaturated Soils (E-UNSAT 2020)

Year of Conference: 2020

Pages: 01008

Online publication date: 16/10/2020

Acceptance date: 01/09/2020

Date deposited: 16/10/2020

ISSN: 2267-1242

Publisher: E3S Web of Conferences

URL: https://doi.org/10.1051/e3sconf/202019501008

DOI: 10.1051/e3sconf/202019501008


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