AN INVERSE METHOD FOR DETERMINING THE INSTANTANEOUS DIFFUSION COEFFICIENT OF PUMPKIN SLICES DURING DRYING PROCESS
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Published:2023-06-24
Issue:3
Volume:53
Page:189-194
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ISSN:1851-8796
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Container-title:Latin American Applied Research - An international journal
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language:
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Short-container-title:LAAR
Author:
BENSEDDIK Abdelouahab,BENSAHA Hocine,Lalmi Djemoui,Benahmed Djilali Adiba,Bennaceur Said,ALLAF Karim
Abstract
In food and biological materials, most methods used to determine the effective moisture diffusivity do not provide reliable results. In this work, an experimental approach to determine the instantaneous diffusion coefficient of pumpkin slices during drying process was used. We use the inverse method by combining the Levenberg-Marquardt optimization technique with analytical solutions of Fick's second law of dif-fusion. A series of drying kinetics experiments are performed followed by the analytical identification of moisture diffusivity. All experimental runs were carried out according to response surface based on central composite design, and the results obtained were validated
Publisher
EdiUNS - Editorial de la Universidad Nacional del Sur
Subject
Mechanical Engineering,General Chemical Engineering,General Chemistry