Thin layer and deep bed drying basic theories and modelling: a review

Esther Magdalene Sharon M, Banuu Priya EP, Kavitha Abirami CV, Alagusundaram K


A comprehensive review of the fundamental theories governing the drying process is presented. The development of models of drying of agricultural products for thin layer and deep bed drying are discussed. The factors affecting drying and the biochemical changes which happen during drying are listed. Importance of moisture diffusion and activation energy consumption for modeling and optimizing the drying processes are highlighted.


drying, moisture content, thin layer drying, deep bed drying, models

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