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Document IIF

Modèle triphasique pour simuler le processus de congélation de solutions aqueuses.

Three-phase model for simulating the freezing process of aqueous solutions.

Auteurs : KAMINISHI O., ARAKI T., SHIRAKASHI R., et al.

Résumé

A simulation model was developed for predicting the freezing phenomena of aqueous solutions. The cell model was simplified and incorporated with the existence of 3 parts such as unfrozen, frozen and moving boundary phases within the material during freezing. Moreover, the variable space network method model was also introduced to calculate the moving rate of the freezing front. Based on the thermophysical properties of coffee solutions as well as the phase diagram measured by DSC method, the one-dimensional freezing process of 10% coffee solution was simulated to investigate the applicability of the model. The results demonstrated that the model provided the good agreement between the calculated and experimental freezing curves and proved its validity in predicting distributions of temperature as well as ice fraction and the change in the location of freezing front during freezing process.

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Détails

  • Titre original : Three-phase model for simulating the freezing process of aqueous solutions.
  • Identifiant de la fiche : 2004-2284
  • Langues : Anglais
  • Source : 21st IIR International Congress of Refrigeration: Serving the Needs of Mankind.
  • Date d'édition : 17/08/2003

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