Numerical and experimental analysis of heat and moisture transfer during drying of Ataulfo mango |
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Authors: | L. Villa-Corrales,J.J. Flores-Prieto,J.P. Xamá n-Villaseñ or,E. Garcí a-Herná ndez |
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Affiliation: | 1. Centro Nacional de Investigación y Desarrollo Tecnológico, CENIDET-DGEST-SEP, Prol. Av. Palmira S/N. Col. Palmira, Cuernavaca, Morelos CP 62490, Mexico;2. Instituto Tecnológico de Zacatepec, ITZ-DGEST-SEP, Calzada Tecnológico S/N, CP 62780, Zacatepec, Morelos, Mexico |
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Abstract: | A theoretical and experimental study for the drying kinetics of Ataulfo mango slices was carried out. In the study different thicknesses, air drying temperature, maturity degree and non-isotropic mass diffusion were considerate. The 2D temperature and moisture distributions inside the slice were predicted by using a theoretical model. The water effective diffusion coefficient, the convective heat and mass transfer coefficients, the drying curves and the center temperature were getting by the experimental model. A parametric study was carried out in the ranging of air drying temperatures from 50 to 70 °C, slices with thickness of 2–5 mm and maturity degree from 13.2 to 22°Brix. It was found from the experimental results that slices of Ataulfo mango present an isotropic behavior with an uncertainty of 2.47%. The drying rate reduces in 4.5% as 1 mm thickness increase, and decreases in 8.0% for each 1°Brix increased. |
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Keywords: | Moisture transfer Ataulfo mango Mango slices Mango drying simulation No isotropic drying experiments |
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