Mathematical Modeling of Thin-Layer Drying Behavior of Date Palm

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Dr. Hosain Darvishi
Dr. Hosain Darvishi
2
Eisa Hazbavi
Eisa Hazbavi
1 Islamic Azad University

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The effect of microwave drying technique on drying kinetics of date palm was investigated. The results showed that the change of moisture ratio with drying time in the power density range from 4 to 9.5 W/g can be successfully described by Page model. Values of drying rate constant (k) were in the range of 0.052-0.142 (1/min) and the effective moisture diffusivities (D eff ) of date range palm from 2.72×10 -6 to 4.73×10 -6 (m 2 /s). The values of k and Deff increased with the increase of power density. The power density dependence of the effective diffusivity coefficient was expressed by an Arrhenius type relationship. Activation energy for the moisture diffusion was determined as 3.908 W/g.

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No external funding was declared for this work.

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The authors declare no conflict of interest.

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No ethics committee approval was required for this article type.

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. 2012. \u201cMathematical Modeling of Thin-Layer Drying Behavior of Date Palm\u201d. Global Journal of Science Frontier Research - F: Mathematics & Decision GJSFR-F Volume 12 (GJSFR Volume 12 Issue F10): .

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GJSFR Volume 12 Issue F10
Pg. 9- 17
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Crossref Journal DOI 10.17406/GJSFR

Print ISSN 0975-5896

e-ISSN 2249-4626

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September 3, 2012

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The effect of microwave drying technique on drying kinetics of date palm was investigated. The results showed that the change of moisture ratio with drying time in the power density range from 4 to 9.5 W/g can be successfully described by Page model. Values of drying rate constant (k) were in the range of 0.052-0.142 (1/min) and the effective moisture diffusivities (D eff ) of date range palm from 2.72×10 -6 to 4.73×10 -6 (m 2 /s). The values of k and Deff increased with the increase of power density. The power density dependence of the effective diffusivity coefficient was expressed by an Arrhenius type relationship. Activation energy for the moisture diffusion was determined as 3.908 W/g.

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Mathematical Modeling of Thin-Layer Drying Behavior of Date Palm

Dr. Hosain Darvishi
Dr. Hosain Darvishi Islamic Azad University
Eisa Hazbavi
Eisa Hazbavi

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