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THE FREEZING OF FINITE DOMAIN AQUEOUS SOLUTIONS: SOLUTE REDISTRIBUTION.

Author(s) : LEVIN R. L.

Type of article: Article

Summary

AN ANALYSIS OF THE UNIDIRECTIONAL FREEZING OF FINITE DOMAIN SOLUTIONS DURING COOLING AT SUBZERO TEMPERATURES IS PRESENTED. THE ANALYSIS IS VALID AT BOTH SHORT AND LONG TIMES AND ALSO FOR BOTH IDEAL, DILUTE AND NON-IDEAL, NON-DILUTE SOLUTIONS. ADDITIONAL APPROXIMATIONS ARE MADE ONLY TO THE EXTENT THAT THE LIQUID-SOLID INTERFACE IS ASSUMED TO REMAIN PLANAR AND THAT THE SYSTEM IS ASSUMED TO REMAIN IN THERMAL EQUILIBRIUM DURING THE FREEZING PROCESS. GENERALIZED RESULTS ARE OBTAINED FOR INITIALLY IDEAL, DILUTE AQUEOUS SOLUTIONS COOLED AT VARIOUS RATES ON ONE BOUNDARY BY STANDARD NUMERICAL METHODS. RESULTS ALSO INDICATE THAT UNDER CERTAIN CIRCUMSTANCES (E.G. FAST COOLING RATES) THAT THE SOLIDIFICATION PROCESS MAY BE LIMITED BY MASS TRANSFER CONSIDERATIONS.

Details

  • Original title: THE FREEZING OF FINITE DOMAIN AQUEOUS SOLUTIONS: SOLUTE REDISTRIBUTION.
  • Record ID : 1982-1138
  • Languages: English
  • Source: International Journal of Heat and Mass Transfer - vol. 24 - n. 9
  • Publication date: 1981/09

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