Determination of Drying Kinetics of Tunceli Garlic with Microwave Drying Technique

In this study, drying kinetics of 4 mm-thick slices of Tunceli garlic Allium tuncelianum was investigated by using microwave technique at an interval of 90-600 W microwave output power. Ten mathematical models were used to represent the experimental data in this study. The determination of coeff...

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Main Author: Hakan Yoğurtçu
Format: Article
Language:English
Published: Ankara University 2016-03-01
Series:Journal of Agricultural Sciences
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Online Access:https://dergipark.org.tr/tr/download/article-file/1569176
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author Hakan Yoğurtçu
author_facet Hakan Yoğurtçu
author_sort Hakan Yoğurtçu
collection DOAJ
description In this study, drying kinetics of 4 mm-thick slices of Tunceli garlic Allium tuncelianum was investigated by using microwave technique at an interval of 90-600 W microwave output power. Ten mathematical models were used to represent the experimental data in this study. The determination of coefficient R2 , root mean square error RMSE , chi-square χ2 and percentage error E% values that show compatibility to these models were determined. The determination of coefficient R2 values were found to vary at an interval of 0.9440-0.9993. The Midilli et al model was determined to be the best model that represents the experimental data. It was seen that drying rate increases with the increase in microwave output power P and decreases with the increase in sample mass m . Effective diffusion coefficients Deff and drying rate constants k were determined for different sample masses at microwave output power of 90 W. Activation energies for both effective diffusion coefficients and drying rate constants were determined by using an Arrhenius type exponential equation. Activation energies from effective diffusion coefficients and drying rate constants were found as 3.85 W g-1 and 3.99 W g-1 respectively.
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spelling doaj-art-c7aac70aaa8d47219e832bfcb3a45b5f2025-08-20T03:22:57ZengAnkara UniversityJournal of Agricultural Sciences1300-75802148-92972016-03-0122223724810.1501/Tarimbil_000000138445Determination of Drying Kinetics of Tunceli Garlic with Microwave Drying TechniqueHakan Yoğurtçu0Tunceli University, Faculty of Engineering, Department of Chemical Engineering, 62000, Tunceli, TURKEYIn this study, drying kinetics of 4 mm-thick slices of Tunceli garlic Allium tuncelianum was investigated by using microwave technique at an interval of 90-600 W microwave output power. Ten mathematical models were used to represent the experimental data in this study. The determination of coefficient R2 , root mean square error RMSE , chi-square χ2 and percentage error E% values that show compatibility to these models were determined. The determination of coefficient R2 values were found to vary at an interval of 0.9440-0.9993. The Midilli et al model was determined to be the best model that represents the experimental data. It was seen that drying rate increases with the increase in microwave output power P and decreases with the increase in sample mass m . Effective diffusion coefficients Deff and drying rate constants k were determined for different sample masses at microwave output power of 90 W. Activation energies for both effective diffusion coefficients and drying rate constants were determined by using an Arrhenius type exponential equation. Activation energies from effective diffusion coefficients and drying rate constants were found as 3.85 W g-1 and 3.99 W g-1 respectively.https://dergipark.org.tr/tr/download/article-file/1569176tunceli sarımsağıi̇nce tabaka kurutmamikrodalga kurutmatunceli garlicthin-layer dryingmicrowave drying
spellingShingle Hakan Yoğurtçu
Determination of Drying Kinetics of Tunceli Garlic with Microwave Drying Technique
Journal of Agricultural Sciences
tunceli sarımsağı
i̇nce tabaka kurutma
mikrodalga kurutma
tunceli garlic
thin-layer drying
microwave drying
title Determination of Drying Kinetics of Tunceli Garlic with Microwave Drying Technique
title_full Determination of Drying Kinetics of Tunceli Garlic with Microwave Drying Technique
title_fullStr Determination of Drying Kinetics of Tunceli Garlic with Microwave Drying Technique
title_full_unstemmed Determination of Drying Kinetics of Tunceli Garlic with Microwave Drying Technique
title_short Determination of Drying Kinetics of Tunceli Garlic with Microwave Drying Technique
title_sort determination of drying kinetics of tunceli garlic with microwave drying technique
topic tunceli sarımsağı
i̇nce tabaka kurutma
mikrodalga kurutma
tunceli garlic
thin-layer drying
microwave drying
url https://dergipark.org.tr/tr/download/article-file/1569176
work_keys_str_mv AT hakanyogurtcu determinationofdryingkineticsoftunceligarlicwithmicrowavedryingtechnique