IIR document
Surface heat transfer coefficients for refrigeration and freezing of foods immersed in an ice slurry.
Coefficients d'échanges superficiels pour la réfrigération et la congélation d'aliments immergés dans un coulis de glace.
Author(s) : TORRES-de MARÍA G., ABRIL J., CASP A.
Type of article: Article, IJR article
Summary
Ice slurries are mixtures of microcrystals of ice in aqueous solutions that do not freeze under the operating conditions used. One potential application of ice slurries in the food industry is the chilling and freezing of foods using direct contact. The latent heat of melting of the ice makes it possible to improve the superficial coefficients of exchange with respect to those obtained using conventional single-phase fluids. In this study, the authors compare the coefficients obtained using immersion in a copper cylinder in various single-phase media (brines) with those obtained using ice slurries. They also analysed the influence of the ice mass fraction, stirring, the evolution of coefficients over time, and the relationships between dimensionless numbers (Nu, Re and Pr).
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Details
- Original title: Coefficients d'échanges superficiels pour la réfrigération et la congélation d'aliments immergés dans un coulis de glace.
- Record ID : 2005-2583
- Languages: French
- Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 28 - n. 7
- Publication date: 2005/11
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