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Prévision et mesure de la performance thermique d'un sous-sol d'immeuble résidentiel.

Measured and predicted thermal performance of a residential basement.

Auteurs : EMERY A. F., HEERWAGEN D. R., KIPPENHAN C. J.

Type d'article : Article

Résumé

The paper describes the measurements of ground and internal wall temperatures, local surface heat fluxes on the basement walls and floor, and overall heat losses for a concrete wall basement. The heat fluxes were measured with heat flux meters and mimic boxes. Daily and seasonal measured performances are displayed. A portion of the walls was covered with additional insulation. This allowed comparison of insulated and noninsulated basements and showed that a modest amount of insulation could reduce the annual heat loss by approximately 50%. The local fluxes are shown to vary significantly with depth, and the insulation was most effective when applied to the upper wall surface, which communicated with the ambient air through a relatively short path through the earth at near grade level. Temperature stratification effects are shown to be important, especially with respect to floor heat fluxes. [Reprinted with permission from ASHRAE. Copyright, 2006].

Détails

  • Titre original : Measured and predicted thermal performance of a residential basement.
  • Identifiant de la fiche : 2007-1240
  • Langues : Anglais
  • Source : HVAC&R Research - vol. 13 - n. 1
  • Date d'édition : 01/2007

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