Caractéristiques thermiques d'un système d'échange de chaleur direct entre des granules avec des matériaux à changement de phase et l'air.
Thermal characteristics of a direct heat exchange system between granules with a phase-change material and air.
Auteurs : NAGANO K., TAKEDA S., MOCHIDA T., et al.
Type d'article : Article
Résumé
The authors have proposed a system of direct heat exchange between granules including phase change material (PCM) and air. The PCM granules consist of granulated porous media with particle diameters and paraffin wax. At first, column experiments were performed with a packed bed of PCM granules. Temperature variations in the PCM packed bed were measured. It was demonstrated that the heat exchange flux between the PCM granules and air can be kept high and continuous during phase change. Secondly, a computer simulation model was developed using an assumption that the temperature of the PCM granules is the same as that of passing air throughout the packed bed. It was found that the phase-change period calculated by the model is in agreement with the measured one. Finally, the heat transfer coefficient during phase change and the time required for phase change to be completed in the system are discussed using numerical analysis.
Détails
- Titre original : Thermal characteristics of a direct heat exchange system between granules with a phase-change material and air.
- Identifiant de la fiche : 2005-0621
- Langues : Anglais
- Source : Applied Thermal Engineering - vol. 24 - n. 14-15
- Date d'édition : 10/2004
Liens
Voir d'autres articles du même numéro (13)
Voir la source
Indexation
-
Thèmes :
Transfert de chaleur;
Transfert de masse - Mots-clés : Granule; Transfert de chaleur; Air; Modélisation; Matériau; Experimentation; Changement de phase
-
Experimental and numerical investigation of the...
- Auteurs : CASANO G., PIVA S.
- Date : 09/2002
- Langues : Anglais
- Source : International Journal of Heat and Mass Transfer - vol. 45 - n. 20
Voir la fiche
-
Modeling phase transformations and volume chang...
- Auteurs : TEHLER M.
- Date : 2009
- Langues : Anglais
Voir la fiche
-
Transfert de chaleur à convection lors de la fu...
- Auteurs : HIROSE K., YOSHII T., WATANABE H.
- Date : 2004
- Langues : Japonais
- Source : Transactions of the Japan Society of Refrigerating and Air Conditioning Engineers - vol. 21 - n. 2
Voir la fiche
-
Numerical solution of the phase change problem ...
- Auteurs : ISMAIL K. A. R., GRACAS M. das, SILVA E. da
- Date : 05/2003
- Langues : Anglais
- Source : International Journal of Heat and Mass Transfer - vol. 46 - n. 10
Voir la fiche
-
Numerical and experimental investigation of mel...
- Auteurs : LAMBERG P., LEHTINIEMI R., HENELL A. M.
- Date : 03/2004
- Langues : Anglais
- Source : International Journal of thermal Sciences - vol. 43 - n. 3
Voir la fiche