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3. Kinetic analysis
In the case of many hygroscopic, porous, mineral, food or biological materials, conventional analysis of drying kinetics based on the various periods identified according to speed (constant, decreasing...) can only, very partially, reflect the physical stages and phenomena of drying.
Often, the internal diffusion of water within the porous material is considered to be the essential process limiting and, therefore, translating the drying operation.
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However, this assumption should only be adopted after it has been ascertained that :
external transfers are by no means limiting processes; for example, an air flow at high speed, low humidity and high enough temperature is required for these transfers to be much more kinetic than internal processes;
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Kinetic analysis
Drying intensification – Application
Bibliography
Websites
• ABCAR DIC Process http://www.abcar-dic.com
• University of La Rochelle – Digital environment http://www.univ-lr.fr/lasie
• SwellDried, the purity of fruit and vegetables http://www.swelldried.com
...Events
• Journées Aliments et Santé, the biennial international meeting place for nutrition and health professionals http://www.aliments-sante.fr
Patents
ALLAF (K.), LOUKA (N.), BOUVIER (J.M.), PARENT (F.) and FORGET (M.). – Method for processing phytogenic materials to change their texture, installation for the achievement of such a process, and resulting materials. French Patent, published under the n F 2708419 on 2 October 1995.
Europe, USA, Brazil, and Japan, Patent published on 16 February 1995, n WO95/04466.
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• DIC equipment manufacturers: ABCAR-DIC Process SAS http://www.abcar-dic.com
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• LaSIE (Laboratoire des Sciences de l'Ingénieur pour l'Environnement – Université de La Rochelle)
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