Modélisation numérique du transfert combiné de chaleur et de masse dans le lit adsorbant d'un système de refroidissement zéolite/eau.
Numerical modelling of combined heat and mass transfer in the adsorbent bed of a zeolite/water cooling system.
Auteurs : LEONG K. C., LIU Y.
Type d'article : Article
Résumé
A zeolite-13X/water adsorption-cooling system based on cylindrical double-tube adsorbent beds, heated or cooled by an external fluid is studied numerically. A two-dimensional non-equilibrium numerical model describing the combined heat and mass transfer in adsorbent bed is presented. As the performance of this system is mainly influenced by the heat and mass transfer properties, three sub-models of heat and mass transfer properties (gas flow in adsorbent bed model, lineal force driven model and equivalent heat transfer conductivity of adsorbent bed model) of the adsorbent bed are proposed in this model. The effect of main configuration parameters such as the heat and mass transfer coefficients, thickness of the bed, diameter of the particle and porosity, on the thermal performance of the system are investigated. It is found that the performance can be strongly influenced by the adsorbent thickness and porosity of the adsorbent bed, while the variation of particle size has minimal effect on the performance. Furthermore, the effect of generation temperature on thermal performance was also investigated.
Détails
- Titre original : Numerical modelling of combined heat and mass transfer in the adsorbent bed of a zeolite/water cooling system.
- Identifiant de la fiche : 2005-0702
- Langues : Anglais
- Source : Applied Thermal Engineering - vol. 24 - n. 16
- Date d'édition : 11/2004
Liens
Voir d'autres articles du même numéro (3)
Voir la source
Indexation
-
Dynamic modelling of the combined heat and mass...
- Auteurs : MILTKAU T., DAWOUD B.
- Date : 08/2002
- Langues : Anglais
- Source : International Journal of thermal Sciences - vol. 41 - n. 8
Voir la fiche
-
Non-isothermal adsorption kinetics of water vap...
- Auteurs : DAWOUD B., VEDDER U., AMER E. H., et al.
- Date : 06/2007
- Langues : Anglais
- Source : International Journal of Heat and Mass Transfer - vol. 50 - n. 11-12
Voir la fiche
-
Numerical study of a combined heat and mass rec...
- Auteurs : LEONG K. C., LIU Y.
- Date : 10/2004
- Langues : Anglais
- Source : International Journal of Heat and Mass Transfer - vol. 47 - n. 22
Voir la fiche
-
Heat and mass transfer properties of a zeolite ...
- Auteurs : HOU M., YANG Y.
- Date : 2001
- Langues : Anglais
- Source : ASHRAE Transactions. 2001 Winter Meeting, Atlanta, GA. Volume 107, part 1 + CD-ROM.
Voir la fiche
-
A dynamic model of heat and mass transfer in a ...
- Auteurs : MAGGIO G., FRENI A., RESTUCCIA G.
- Date : 06/2006
- Langues : Anglais
- Source : International Journal of Refrigeration - Revue Internationale du Froid - vol. 29 - n. 4
- Formats : PDF
Voir la fiche