Conductivité thermique effective des échangeurs de chaleur verticaux à forage unique avec un écoulement d'eau souterrain.

Effective thermal conductivity for single-bore vertical heat exchangers with groundwater flow.

Résumé

Design engineers currently lack means to easily incorporate the influence of underground water flow into the design of vertical-bore heat exchangers (VBHEx). This paper presents the development of a pseudo or "effective" thermal conductivity correlation for analysis of single-bore VBHEx with groundwater flow. Using the solution to the moving line heat source, a dimensionless correlation, containing parameters for Peclet number and porosity, is provided. The resulting adjusted (i.e., effective) thermal conductivity can be used for analysis and is a good first step toward accounting for groundwater flow in a VBHEx.

Détails

  • Titre original : Effective thermal conductivity for single-bore vertical heat exchangers with groundwater flow.
  • Identifiant de la fiche : 2006-2862
  • Langues : Anglais
  • Source : ASHRAE Transactions. 2005 Annual Meeting, Denver, Colorado, USA. Volume 111, part 2 + CD-ROM.
  • Date d'édition : 2005

Liens


Voir d'autres communications du même compte rendu (23)
Voir le compte rendu de la conférence