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Mathematical modeling and simulation of shrunk cylindrical material's drying kinetics—Approximation and application to banana

Paper ID Volume ID Publish Year Pages File Format Full-Text
19190 43049 2009 6 PDF Available
Title
Mathematical modeling and simulation of shrunk cylindrical material's drying kinetics—Approximation and application to banana
Abstract

In the present work, a diffusion-based model was adopted to represent the convective drying behavior of cylindrical banana samples, taking into consideration the shrinkage along drying. The developed model simulated a significant number of situations resulting from the variations of some operating conditions. The temperatures tested were 50, 60, 67 and 70 °C, the air velocities were 3, 4 and 4.5 m/s and the relative humidity range of the drying air was from 3.5 to 11.5%. The calculated drying curves were compared to the experimental ones in order to determine apparent moisture diffusivity. An empirical equation was suggested, describing the apparent moisture diffusivity within the banana versus product temperature and local moisture content. A good agreement was found between experimental and calculated drying kinetics.

Keywords
Convective drying; Diffusive model; Moisture diffusivity; Shrinkage; Cylindrical banana
First Page Preview
Mathematical modeling and simulation of shrunk cylindrical material's drying kinetics—Approximation and application to banana
Publisher
Database: Elsevier - ScienceDirect
Journal: Food and Bioproducts Processing - Volume 87, Issue 2, June 2009, Pages 96–101
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering