Une étude expérimentale sur le transfert de chaleur amélioré dans un système rectangulaire de stockage d'énergie à matériaux à changement de phase.
An experimental study of enhanced heat transfer in rectangular phase-change material (PCM) thermal storage.
Auteurs : STRITIH U.
Type d'article : Article
Résumé
The heat-transfer characteristics of a latent-heat storage unit with a finned surface have been experimentally studied in terms of the solidification and melting processes by comparing them with those of a heat-storage unit with a plain surface. Paraffin with a melting point of 30 °C was used in the investigations because it is appropriate for thermal storage applications in buildings. Time-based variations of the temperature distributions and heat flux are explained from the results of observations of the melting and the solidification layers. The dimensionless Nusselt number was calculated as a function of the Rayleigh number for natural convection in the paraffin for both the melting and the solidification processes. The effectiveness of the fins was calculated from the quotient of the heat flux with fins and the heat flux without fins.
Détails
- Titre original : An experimental study of enhanced heat transfer in rectangular phase-change material (PCM) thermal storage.
- Identifiant de la fiche : 2004-2270
- Langues : Anglais
- Source : International Journal of Heat and Mass Transfer - vol. 47 - n. 12-13
- Date d'édition : 06/2004
Liens
Voir d'autres articles du même numéro (12)
Voir la source
Indexation
-
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
-
Heat transfer performance improvement of steari...
- Auteurs : LEE J. H., KIM Y. J., PARK N., et al.
- Date : 01/07/2012
- Langues : Anglais
- Source : 10th International Conference on Phase-Change Materials and Slurries for Refrigeration and Air Conditioning. Proceedings: Kobe, Japan, July 29-August 1, 2012.
- Formats : PDF
Voir la fiche
-
Study of direct contact melting with hydrocarbo...
- Auteurs : KUMANO H., SAITO A., OKAWA S., et al.
- Date : 07/2005
- Langues : Anglais
- Source : International Journal of Heat and Mass Transfer - vol. 48 - n. 15
Voir la fiche
-
Numerical and experimental study of melting in ...
- Auteurs : ASSIS E., KATSMAN L., ZISKIND G., et al.
- Date : 05/2007
- Langues : Anglais
- Source : International Journal of Heat and Mass Transfer - vol. 50 - n. 9-10
Voir la fiche
-
Heat transfer enhancement and parametric study ...
- Auteurs : GUO C. X., WEI X. L., WANG D. B.
- Date : 05/04/2008
- Langues : Anglais
- Source : Cryogenics and refrigeration. Proceedings of ICCR'2008.
Voir la fiche