Accéder directement au contenu Accéder directement à la navigation
Article dans une revue

Experimental determination of some micro-structural and hydrous properties of a terra cotta and modelisation of hygrothermal transfers

Abstract : This experimental study present some micro-structural and thermo-hydrous properties of terra cotta. A tube, built from this porous material, bathes in a tank filled with water. The internal surface of the wall carries a water film which evaporates by forced convection of hot and dry air, allowing the storage of negative kilocalories. The form of the lube used is a factor that allows neglecting the variations of the thermo-physical properties of the air between the entry and the exit of the tube. A computer code (based on the equation of Darcy for fluid crossing saturated porous material, the equation of Laplace on pressures and the equation of heat in polar co-ordinates) was established to describe the thermo-hydrous behavior of the material. The code makes it possible to determine the zones of intrinsic permeability favorable to a continuous evaporation without draining off the water film and it also allows the calculation of the average temperature of bath.
Type de document :
Article dans une revue
Liste complète des métadonnées

https://hal-unilim.archives-ouvertes.fr/hal-00630706
Contributeur : Claire Douady <>
Soumis le : lundi 10 octobre 2011 - 17:00:54
Dernière modification le : lundi 14 septembre 2020 - 13:30:02

Lien texte intégral

Identifiants

Collections

Citation

S. Kam, Joseph Bathiébo, L. Zerbo, Julien Soro, K. Traoré, et al.. Experimental determination of some micro-structural and hydrous properties of a terra cotta and modelisation of hygrothermal transfers. Journal of Applied Sciences, Asian Network for Scientific Information, 2009, 9 (19), pp.3424-3432. ⟨10.3923/jas.2009.3424.3432⟩. ⟨hal-00630706⟩

Partager

Métriques

Consultations de la notice

149