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Multidimensional simulation of earth-contact heat transfer

Rees, Stephen William, Zhou, Zheng Ming and Thomas, Hywel Rhys 2006. Multidimensional simulation of earth-contact heat transfer. Building Research and Information 34 (6) , pp. 565-572. 10.1080/09613210600675958

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Abstract

A numerical investigation of earth-contact heat transfer adjacent to an experimental structure is presented. In particular, a comparison is made between a two- and a three-dimensional simulation. The results are compared directly with data measured from a purpose-built full-scale experiment. Indirect methods of estimating thermal conductivity and volumetric heat capacity are described and employed. The results show reasonable correlation between the simulated and measured thermal responses. The three-dimensional simulation appears to provide an improved representation of the field problem. Some of the challenges associated with simulating a full-scale field problem are considered. The determination of the representative boundary and initial conditions is shown to be important. Cet article prsente l'analyse numrique d'un systme de transfert thermique par contact avec la terre install proximit d'une structure exprimentale. On y compare, notamment, une simulation bidimensionnelle et une simulation tridimensionnelle. Les rsultats sont compars directement des donnes mesures dans le cas d'une exprience grandeur nature conue spcifiquement dans ce but. L'auteur dcrit les mthodes indirectes d'estimation de la conductivit thermique et de la capacit thermique volumtrique utilises. Les rsultats montrent une corrlation raisonnable entre les rponses simules et les rponses thermiques mesures. La simulation 3D semble tre une reprsentation amliore du problme de terrain. Certaines des difficults associes la simulation d'un problme de terrain grande chelle sont prises en considration. La dtermination de la limite de reprsentation et des conditions initiales est juge importante.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Engineering
Uncontrolled Keywords: Buildings ; Earth-contact ; Energy efficiency ; Field measurement; Heat transfer ; Simulation
ISSN: 1466-4321
Last Modified: 04 Jun 2017 01:43
URI: http://orca.cf.ac.uk/id/eprint/2009

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