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Enhancement of soil thermo-physical properties using microencapsulated phase change materials for ground source heat pump applications

Dehdezi, Pejman Keikhaei; Hall, Matthew R.; Dawson, Andrew

Authors

Pejman Keikhaei Dehdezi

Matthew R. Hall

Andrew Dawson



Abstract

Soil can be modified with Phase Change materials (PCM) in order to enhance its thermophysical properties and energy storage for ground source heat pump applications. This paper studies thermo-physical properties of soil modified with different amount of microencapsulated PCM. It is shown that increasing PCM amount in soil lead to lower thermal conductivity and increase of volumetric heat capacity of PCM-modified soil across the PCM melting temperature range. In addition, numerical simulation is performed to study the potential application of PCM modified soil for reduction of temperature variations in ground. The result of numerical simulation revealed that temperature variation under PCM-modified soil can be reduced by up to 3ºC compared to conventional soil.

Journal Article Type Article
Journal Applied Mechanics and Materials
Print ISSN 1660-9336
Electronic ISSN 1662-7482
Publisher Trans Tech Publications
Peer Reviewed Peer Reviewed
Volume 110-116
Institution Citation Dehdezi, P. K., Hall, M. R., & Dawson, A. (in press). Enhancement of soil thermo-physical properties using microencapsulated phase change materials for ground source heat pump applications. Applied Mechanics and Materials, 110-116, doi:10.4028/www.scientific.net/AMM.110-116.1191
DOI https://doi.org/10.4028/www.scientific.net/AMM.110-116.1191
Keywords Ground source heat pump; Heat transport; Phase change materials; Latent heat storage
Publisher URL https://www.scientific.net/AMM.110-116.1191
Copyright Statement Copyright information regarding this work can be found at the following address: http://eprints.nottingh.../end_user_agreement.pdf


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