کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10278761 | 464582 | 2005 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Mathematical simulation of convection food batch drying with assumptions of plug flow and complete mixing of air
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
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چکیده انگلیسی
Simulations of fixed bed batch drying of foods with air plug flow and air complete mixing assumptions were developed in order to evaluate the effect of ideal behavior deviations. A general mathematical model for drying that takes into account heat and mass transfer in air, product and interface along with water thermodynamic equilibrium was implemented. Experimental drying of fixed bed of cassava slabs with 1 cm thickness was carried out at 60 and 63 °C input air for model validation. The results show that there is no significant difference between plug flow and complete mixing assumptions, when the drying is controlled by internal diffusion. Instead, some differences exist when the process is not controlled by internal diffusion. Simulation results showed that air outlet temperature measurement is a way of showing deviations from air plug flow behavior.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Food Engineering - Volume 68, Issue 3, June 2005, Pages 321-327
Journal: Journal of Food Engineering - Volume 68, Issue 3, June 2005, Pages 321-327
نویسندگان
E. Herman-Lara, M.A. Salgado-Cervantes, M.A. GarcÃa-Alvarado,