Simulation of the thin-layer drying of corn by means of the diffusional model
The thin-layer drying of corn at 40, 50, 60 and 70 °C was investigated. Simulation of the experimental data was performed by means of Fick's second law for diffusion out of sphere, with constant diffusivity. An accurate fitting of the experimental drying curves was obtained assuming that the su...
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1988
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| Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00236438_v21_n2_p83_Tolaba http://hdl.handle.net/20.500.12110/paper_00236438_v21_n2_p83_Tolaba |
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paper:paper_00236438_v21_n2_p83_Tolaba2023-06-08T14:51:32Z Simulation of the thin-layer drying of corn by means of the diffusional model Tolaba, Marcela Patricia The thin-layer drying of corn at 40, 50, 60 and 70 °C was investigated. Simulation of the experimental data was performed by means of Fick's second law for diffusion out of sphere, with constant diffusivity. An accurate fitting of the experimental drying curves was obtained assuming that the surface moisture content remains constant during drying period. It was found that the values of surface moisture content calculated from Fick's equation are greater than equilibrium moisture contents determined from the desorption isotherms. An Arrhenius temperature dependence of moisture diffusivity was found with the activation energy 6.6 kcal/g mol. © 1988 Academic Press Limited. Fil:Tolaba, M.P. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 1988 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00236438_v21_n2_p83_Tolaba http://hdl.handle.net/20.500.12110/paper_00236438_v21_n2_p83_Tolaba |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| description |
The thin-layer drying of corn at 40, 50, 60 and 70 °C was investigated. Simulation of the experimental data was performed by means of Fick's second law for diffusion out of sphere, with constant diffusivity. An accurate fitting of the experimental drying curves was obtained assuming that the surface moisture content remains constant during drying period. It was found that the values of surface moisture content calculated from Fick's equation are greater than equilibrium moisture contents determined from the desorption isotherms. An Arrhenius temperature dependence of moisture diffusivity was found with the activation energy 6.6 kcal/g mol. © 1988 Academic Press Limited. |
| author |
Tolaba, Marcela Patricia |
| spellingShingle |
Tolaba, Marcela Patricia Simulation of the thin-layer drying of corn by means of the diffusional model |
| author_facet |
Tolaba, Marcela Patricia |
| author_sort |
Tolaba, Marcela Patricia |
| title |
Simulation of the thin-layer drying of corn by means of the diffusional model |
| title_short |
Simulation of the thin-layer drying of corn by means of the diffusional model |
| title_full |
Simulation of the thin-layer drying of corn by means of the diffusional model |
| title_fullStr |
Simulation of the thin-layer drying of corn by means of the diffusional model |
| title_full_unstemmed |
Simulation of the thin-layer drying of corn by means of the diffusional model |
| title_sort |
simulation of the thin-layer drying of corn by means of the diffusional model |
| publishDate |
1988 |
| url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00236438_v21_n2_p83_Tolaba http://hdl.handle.net/20.500.12110/paper_00236438_v21_n2_p83_Tolaba |
| work_keys_str_mv |
AT tolabamarcelapatricia simulationofthethinlayerdryingofcornbymeansofthediffusionalmodel |
| _version_ |
1768543022176272384 |