Chilling and freezing by immersion in concentrated aqueous solutions: experimental characterization and modelling of heat and mass transfer.
Réfrigération et congélation par immersion dans des liquides aqueux concentrés : caractérisation expérimentale et modélisation des transferts couplés de chaleur et de matière.
Author(s) : LUCAS T.
Type of monograph: Doctoral thesis
Summary
This thesis was prepared within the framework of cooperation between Cemagref and CIRAD, with a view to obtaining a Doctorate from the Ecole Nationale du Génie Rural des Eaux et des Forêts (National School of Rural Engineering and Water and Forest Management, [ENGREF]); the specialized field of the author is: food industry processes. The thesis covers chilling, freezing or thawing processes involving immersion in concentrated single- or two-phase concentrated aqueous solutions at low temperatures (-60 to +5 deg C). Extract from the table of contents: present status of the field and objectives of the study: process, value and overall behaviour of the product; properties of concentrated aqueous solutions and solid foodstuffs (phase diagram and thermophysical properties of liquid refrigerants; comparison with the thermophysical properties of foodstuffs during freezing; matter diffusion coefficient); regulation of heat transfer between a solid foodstuff and a concentrated liquid phase at a low temperature (the influence of process-related variables and the product on the rate of chilling and freezing of foodstuffs; crystallization of water within a foodstuff); control of matter transfer between a foodstuff and a concentrated liquid phase. The case of a dehydration-impregnation by immersion process; pairing of phase change (liquid water-ice) and matter transport; materials and method (materials used in order to measure convective heat transfer coefficients; experimental equipment and how the study was performed; measurement methods); modelling of paired transfers in a bed of spheres.
Details
- Original title: Réfrigération et congélation par immersion dans des liquides aqueux concentrés : caractérisation expérimentale et modélisation des transferts couplés de chaleur et de matière.
- Record ID : 1999-0637
- Languages: French
- Publication: Cemagref - France/France
- Publication date: 1998/10/07
- Source: Source: 203 p. (21 x 29.7); fig.; phot.; tabl.; append.
- Document available for consultation in the library of the IIR headquarters only.
Indexing
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Themes:
Refrigeration and perishable products: general information;
Food engineering;
Chilling of foodstuffs;
Freezing of foodstuffs - Keywords: Thermal property; Thawing rate; Thawing; Ice; Heat transfer coefficient; Food; Calculation; Measurement; Mass transfer; Freezing rate; Heat transfer; Diagram; Chilling; Aqueous solution; Physical property; Simulation; Immersion; Testing; Crystallization; Freezing; Secondary refrigerant; Change of phase; Water; Sodium chloride
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Cooling and freezing behaviours of aqueous sodi...
- Author(s) : NARUMI A., KASHIWAGI T., NAKANE I.
- Date : 1992
- Languages : Japanese
- Source: Trans. JAR - vol. 9 - n. 2
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Freezing of solution on a horizontal plate and ...
- Author(s) : MATSUMOTO K., OKADA M., TERAO T.
- Date : 1992
- Languages : Japanese
- Source: Trans. JAR - vol. 9 - n. 3
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Freezing of aqueous sodium chloride solution sa...
- Author(s) : CHOI J., VISKANTA R.
- Date : 1993/07
- Languages : English
- Source: International Journal of Heat and Mass Transfer - vol. 36 - n. 11
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STUDIES ON THE FREEZING PROCESSES IN AQUEOUS MO...
- Author(s) : REID D. S., LIM M. H., MCEVOY H. M.
- Date : 1983/08/07
- Languages : English
- Source: [Refrigeration serving humanity]. Proceedings of the XVIth international Congress of Refrigeration.
- Formats : PDF
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SOLUTE POLARIZATION DURING PLANAR FREEZING OF A...
- Author(s) : KORBER C., SCHEIWE M. W., WOLLHOVER K.
- Date : 1983/08
- Languages : English
- Source: International Journal of Heat and Mass Transfer - vol. 26 - n. 8
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