Numerical modeling of heat loss from residential foundation to surrounding soils in freezing environment

Dominique Beaulieu, Jean Cote

In the proceedings of: GeoRegina 2014: 67th Canadian Geotechnical Conference

Session: Cold Regions Geotechnics

ABSTRACT: By adapting a numerical model recently developed at Laval University, it was possible to evaluate the heat flow through the foundation built in different typical soils. This paper will focus on clay and sand. This study is a numerical analysis of heat transfer including, pure conduction and freezing/thawing. Its aim is to determinate if phase change has an influence on the heat flow. Results show an increase in heat flow of about 0.5 W/m2 at maximum caused by phase change.

RÉSUMÉ: En faisant l™adaptation d™un modèle numérique récemment développé à l™Université Laval, il a été possible d™évaluer le flux thermique à travers une fondation construite dans différents sols typiques. Cet article se concentre sur l™argile et le sable. L™étude consiste en une analyse numérique de transfert thermique incluant la conduction et le changement de phase. Son objectif est de déterminer si le changement de phase à une influence sur le flux de chaleur. Les résultats montrent une augmentation du flux thermique d™environ 0,5 W/m2 au maximum provoqué par le changement de phase.

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