[article] 
inTransactions of the ASME. Journal of solar energy engineering > Vol. 134 N° 2 (Mai 2012) . - 08 p.

Titre :	Analysis of thermo-active foundations with u-tube heat exchangers
Type de document :	texte imprimé
Auteurs :	Khaled Rouissi, Auteur ; Moncef Krarti, Auteur ; John S. McCartney, Auteur
Année de publication :	2012
Article en page(s) :	08 p.
Note générale :	solar energy
Langues :	Anglais (eng)
Mots-clés :	thermo-active foundations  ground source heat pumps (GSHPs)  U-tube  finite difference method
Index. décimale :	621.47
Résumé :	This paper presents a heat transfer model for thermo-active drilled-shaft foundations used for heating and cooling buildings. Specifically, this paper presents a numerical approach to evaluate the unsteady temperature distribution within the ground medium surrounding the foundation as well as indoor/outdoor heat fluxes. In particular, a 2D numerical solution was obtained using the finite difference technique with a purely implicit solution scheme. The results of the sensitivity analysis indicate that the efficiency of the thermo-active foundation can be significantly improved with a proper selection of design parameters including heat exchanger fluid flow velocity, foundation depth, and foundation materials.
DEWEY :	621.47
ISSN :	0199-6231
En ligne :	http://asmedl.org/getabs/servlet/GetabsServlet?prog=normal&id=JSEEDO000134000002 [...]

[article] Analysis of thermo-active foundations with u-tube heat exchangers [texte imprimé] / Khaled Rouissi, Auteur ; Moncef Krarti, Auteur ; John S. McCartney, Auteur . - 2012 . - 08 p.
solar energy
Langues : Anglais (eng)
in Transactions of the ASME. Journal of solar energy engineering > Vol. 134 N° 2 (Mai 2012) . - 08 p.

Mots-clés :	thermo-active foundations  ground source heat pumps (GSHPs)  U-tube  finite difference method
Index. décimale :	621.47
Résumé :	This paper presents a heat transfer model for thermo-active drilled-shaft foundations used for heating and cooling buildings. Specifically, this paper presents a numerical approach to evaluate the unsteady temperature distribution within the ground medium surrounding the foundation as well as indoor/outdoor heat fluxes. In particular, a 2D numerical solution was obtained using the finite difference technique with a purely implicit solution scheme. The results of the sensitivity analysis indicate that the efficiency of the thermo-active foundation can be significantly improved with a proper selection of design parameters including heat exchanger fluid flow velocity, foundation depth, and foundation materials.
DEWEY :	621.47
ISSN :	0199-6231
En ligne :	http://asmedl.org/getabs/servlet/GetabsServlet?prog=normal&id=JSEEDO000134000002 [...]