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Abstract:

The thin-layer drying or rough rice, maize and sorghum at several temperatures was investigated. Simulation of the experimental data was performed by solving numerically the diffusion equation with variable diffusion coefficient for spherical-shaped grain. To account for this variation, an analytical expression for the dependence of the diffusion coefficient with moisture content was obtained based on considerations of the energy needed to dissociate water molecules from their sites and of resistance to diffusion. When the expression for diffusivity was used for predicting drying behavior of the grains, a good agreement was obtained between experimental data and the theoretical prediction.

Registro:

Documento: Artículo
Título:Modeling cereal grain drying with variable diffusivity
Autor:Tolaba, M.P.; Aguerre, R.J.; Suárez, C.
Filiación:Departamento de Industrias, Fac. de Ciencias Exactas y Naturales, Ciudad Universitaria, 1428 - Buenos Aires, Argentina
Departamento de Tecnología, Universidad Nacional de Luján, Cruce Rutas 5 y 7, C.C. 221, (6700), Provincia de Buenos Aires, Argentina
Palabras clave:Zea mays
Año:1997
Volumen:74
Número:6
Página de inicio:842
Página de fin:845
DOI: http://dx.doi.org/10.1094/CCHEM.1997.74.6.842
Título revista:Cereal Chemistry
Título revista abreviado:CEREAL CHEM.
ISSN:00090352
CODEN:CECHA
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00090352_v74_n6_p842_Tolaba

Referencias:

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Citas:

---------- APA ----------
Tolaba, M.P., Aguerre, R.J. & Suárez, C. (1997) . Modeling cereal grain drying with variable diffusivity. Cereal Chemistry, 74(6), 842-845.
http://dx.doi.org/10.1094/CCHEM.1997.74.6.842
---------- CHICAGO ----------
Tolaba, M.P., Aguerre, R.J., Suárez, C. "Modeling cereal grain drying with variable diffusivity" . Cereal Chemistry 74, no. 6 (1997) : 842-845.
http://dx.doi.org/10.1094/CCHEM.1997.74.6.842
---------- MLA ----------
Tolaba, M.P., Aguerre, R.J., Suárez, C. "Modeling cereal grain drying with variable diffusivity" . Cereal Chemistry, vol. 74, no. 6, 1997, pp. 842-845.
http://dx.doi.org/10.1094/CCHEM.1997.74.6.842
---------- VANCOUVER ----------
Tolaba, M.P., Aguerre, R.J., Suárez, C. Modeling cereal grain drying with variable diffusivity. CEREAL CHEM. 1997;74(6):842-845.
http://dx.doi.org/10.1094/CCHEM.1997.74.6.842