Abstract
In this study, the moisture diffusion process and mass transfer resistances for the drying process of corn were studied numerically. A 3D mathematical model for the heat and mass transfer of the hot air drying of corn was established. The heterogeneity of the corn kernels' physical structure was designed by multi-component modeling of the corn geometry. The distributions of the temperature and moisture inside the kernel during the drying process were simulated by COMSOL Multi physics software. The effects of drying air temperature, relative humidity, and wind velocity on the mass transfer process of drying corn were analyzed. The pericarp resistance comprised the majority of the mass transfer resistance in the drying process. The drying air temperature significantly reduced pericarp resistance. The higher the wind velocity was, the lower the boundary layer resistance.
Funding source: Development and Innovation Project of Science and Technology Commission of Jilin city
Award Identifier / Grant number: 201750214
Funding source: Key technology research Project of Science and Technology Commission of Jilin Province
Award Identifier / Grant number: 20180201006SF
Author contribution: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.
Research funding: This work was supported by the Key technology research Project of Science and Technology Commission of Jilin Province, China (No. 20180201006SF); the Development and Innovation Project of Science and Technology Commission of Jilin city, China (No. 201750214).
Employment or leadership: None declared.
Honorarium: None declared.
Conflict of interest statement: The authors declare no conflicts of interest regarding this article.
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