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Journal of Agricultural Science and Technology، جلد ۱۵، شماره ۵، صفحات ۸۶۹-۸۷۷
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عنوان انگلیسی Drying Characteristics of Powdered Wheat Straw and Its Mathematical Modeling
چکیده انگلیسی مقاله The objective of this research was to study the drying characteristics of powdered agricultural residues. Drying experiments of wheat straw (Triticum aestivum) were conducted at four temperatures of 50, 60, 70, and 80°C by a thermogravimetric analyzer. Drying temperature had a significant effect on the moisture change and drying time. There was no constant drying rate period, but a short rising rate period was evident for all drying process due to increasing temperature of the sample at the beginning of drying. Six mathematical models were selected to describe the drying characteristics of wheat straw. The goodness of fit was evaluated by the coefficient of determination (R2), the reduced chi-square (c2), and the root mean square error (RMSE). Midilli et al. model was found to be the best for modeling the experimental data. The values of effective moisture diffusivity of wheat straw dried at 50, 60, 70, and 80°C were calculated to be 1.13×10-8, 1.48×10-8, 1.66×10-8, and 2.29×10-8 m2 s-1, respectively.
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نویسندگان مقاله d chen |
key laboratory for biomass clean energy of anhui province, university of science and technology of china, hefei 230026, china.

x. zhu |
key laboratory for biomass clean energy of anhui province, university of science and technology of china, hefei 230026, china.

x. zhu |
key laboratory for biomass clean energy of anhui province, university of science and technology of china, hefei 230026, china.

نشانی اینترنتی http://jast.modares.ac.ir/article_5004_6f93c6b0f85f70d7c9de2971b6f58c91.pdf
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