Partager

Document IIF

Méthode de suivi des fronts pour la fusion des PCM.

A front tracking method for melting of phase change materials.

Numéro : pap. 0008

Auteurs : HAGHIGHAT F., MOREAU A., JOYBARI M. M.

Résumé

Phase change materials (PCMs) have received considerable attention in recent years since they can tackle the time mismatch between energy supply and demand. During melting of PCMs, density changes create buoyancy forces resulting in an upward melted PCM motion, i.e. natural convection. However, many numerical studies and well-known methods (for instance the e-NTU method) neglect the natural convection due to its modeling complexity. Effective thermal conductivity method simply accounts for the natural convection by an artificial increase of the thermal conductivity value. Nevertheless, obtaining the value is time-consuming and requires experimental data. Besides, it does not provide any information about the melting front location. In this study, a novel front tracking method is presented for PCM melting in horizontal shell and tube heat exchangers. The method considers separate melting fronts for the upper and lower halves and is simple enough to compete with and replace the effective thermal conductivity method.

Documents disponibles

Format PDF

Pages : 58-66

Disponible

  • Prix public

    20 €

  • Prix membre*

    Gratuit

* meilleur tarif applicable selon le type d'adhésion (voir le détail des avantages des adhésions individuelles et collectives)

Détails

  • Titre original : A front tracking method for melting of phase change materials.
  • Identifiant de la fiche : 30023754
  • Langues : Anglais
  • Source : 12th IIR Conference on Phase-Change Materials and Slurries for Refrigeration and Air Conditioning. Proceedings: Orford, Canada, May 21-23, 2018.
  • Date d'édition : 21/05/2018
  • DOI : http://dx.doi.org/10.18462/iir.pcm.2018.0008

Liens


Voir d'autres communications du même compte rendu (52)
Voir le compte rendu de la conférence

Indexation