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Ice slurry crystallization based on kinetic phase-change modelling.

Author(s) : CHÉGNIMONHAN V., JOSSET C., PEERHOSSAINI H.

Type of article: Article, IJR article

Summary

Most crystallization models for ice slurries are based on the equilibrium thermodynamic approach, an assumption that is not made a priori here. The authors present results of simulations grounded on classical nucleation theory and crystal growth included in global Nakamura-type kinetics coupled with the one-dimensional nonlinear heat equation, another way to model the phase change. The work focuses on ice slurry crystallization using kinetic tools integrating the temperature glide for mixtures (i.e., the solid-liquid equilibrium temperature Tf depends on the residual fluid's solute concentration) without any equilibrium assumption. The heat-transfer phenomena in the experimental device are first determined, and then the parameters of kinetic function of crystallization are identified for pure water samples and then for 15 wt% monopropylene glycol (MPG)-water mixtures. An inverse method is implemented with a genetic algorithm to determine the kinetic parameters.

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Pages: pp. 1559-1568

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Details

  • Original title: Ice slurry crystallization based on kinetic phase-change modelling.
  • Record ID : 2010-1905
  • Languages: English
  • Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 33 - n. 8
  • Publication date: 2010/12

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