Mathematical modeling and thin layer drying kinetics of Carrot Slices

α
Dr. Hosain Darvishi
Dr. Hosain Darvishi
σ
Ahmad Banakar
Ahmad Banakar
ρ
Mohammad zarein
Mohammad zarein Ph.D.
α Islamic Azad University, Tehran Islamic Azad University, Tehran
σ to ρ Tarbiat Modares University Tarbiat Modares University

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Mathematical modeling and thin layer drying kinetics of Carrot Slices

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Abstract

The thin-layer drying characteristics of carrot slices were investigated under four microwave powers; 200, 300, 400 and 500 W and slice thickness of 2.5 mm. Data were analyzed to obtain diffusivity values from the period of falling drying rate. Four mathematical models for describing the thin-layer drying behavior of carrot were investigated. The results show that the Midilli et al. is the most appropriate model for drying behaviour of thin layer carrot slices. An analysis of variance (ANOVA) revealed that microwave power significantly affected the drying time, drying rate, effective diffusivity and specific energy consumption. The effective diffusivity varied from 1.90×10 -8 to 3.99×10 -8 m 2 /s, and the activation energy was determined to be 36.40. Specific energy consumption values ranged 8.58 to 12.46 MJ/kg and the optimized specific energy consumption was obtained 540 W microwave levels.

References

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Funding

No external funding was declared for this work.

Conflict of Interest

The authors declare no conflict of interest.

Ethical Approval

No ethics committee approval was required for this article type.

Data Availability

Not applicable for this article.

How to Cite This Article

. 2012. \u201cMathematical modeling and thin layer drying kinetics of Carrot Slices\u201d. Global Journal of Science Frontier Research - F: Mathematics & Decision GJSFR-F Volume 12 (GJSFR Volume 12 Issue F7): .

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Issue Cover
GJSFR Volume 12 Issue F7
Pg. 57- 64
Journal Specifications

Crossref Journal DOI 10.17406/GJSFR

Print ISSN 0975-5896

e-ISSN 2249-4626

Version of record

v1.2

Issue date

July 2, 2012

Language
en
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The thin-layer drying characteristics of carrot slices were investigated under four microwave powers; 200, 300, 400 and 500 W and slice thickness of 2.5 mm. Data were analyzed to obtain diffusivity values from the period of falling drying rate. Four mathematical models for describing the thin-layer drying behavior of carrot were investigated. The results show that the Midilli et al. is the most appropriate model for drying behaviour of thin layer carrot slices. An analysis of variance (ANOVA) revealed that microwave power significantly affected the drying time, drying rate, effective diffusivity and specific energy consumption. The effective diffusivity varied from 1.90×10 -8 to 3.99×10 -8 m 2 /s, and the activation energy was determined to be 36.40. Specific energy consumption values ranged 8.58 to 12.46 MJ/kg and the optimized specific energy consumption was obtained 540 W microwave levels.

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Mathematical modeling and thin layer drying kinetics of Carrot Slices

Dr. Hosain Darvishi
Dr. Hosain Darvishi Islamic Azad University, Tehran
Ahmad Banakar
Ahmad Banakar Tarbiat Modares University
Mohammad zarein
Mohammad zarein Tarbiat Modares University

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