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EXPERIMENTAL METHOD FOR DETERMINING THE ENTHALPY OF A FINE TEXTURE DISPERSED MEDIUM.

DETERMINATION DE L'ENTHALPIE D'UN MILIEU FINEMENT DISPERSE A L'AIDE D'UNE EXPERIENCE DE CONGELATION.

Author(s) : RAMOS SAINZ M., SANZ MARTINEZ P. D., AGUIRRE-PUENTE J.

Summary

AN ENTHALPIC THEORY OF THE SOLIDIFICATION OF SUBSTANCES WHERE WATER PROGRESSIVELY FREEZES BELOW 0 DEG C LEADS TO THE SOLUTION OF A NON-LINEAR EQUATION SYSTEM. EXPERIMENTS SHOW THAT THE THEORY IS VERIFIED FORTHE CASE OF A PARABOLIC THERMAL DISTRIBUTION IN THE SOLIDIFYING REGION. THIS MODEL, APPLIED FOR THE INTERPRETATION OF SIMPLE FREEZING EXPERIMENTS, ALLOWS AN EASY ENTHALPY VS TEMPERATURE DETERMINATION. THE CASE OF METHYL CELLULOSE (TYLOSE) IS PRESENTED IN THIS PAPER.

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Pages: 1834-1837

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Details

  • Original title: DETERMINATION DE L'ENTHALPIE D'UN MILIEU FINEMENT DISPERSE A L'AIDE D'UNE EXPERIENCE DE CONGELATION.
  • Record ID : 1992-2276
  • Languages: French
  • Source: New challenges in refrigeration. Proceedings of the XVIIIth International Congress of Refrigeration, August 10-17, 1991, Montreal, Quebec, Canada.
  • Publication date: 1991/08/10
  • Document available for consultation in the library of the IIR headquarters only.

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