DRYING OF OKRA BY INFRARED RADIATION

Seda Tanta; İbrahim Doymaz

DRYING OF OKRA BY INFRARED RADIATION

Abstract

In this study, we tried to evaluate mass transfer during an infrared drying of okra. Infrared radiation (IR) power (62, 74, 88 and 104 W) as drying parameter is evaluated on drying characteristics of okra. The infrared power affected the drying and colour characteristics of okra. Drying time was found decreasing with increase in infrared power. Four thin-layer drying models were evaluated for moisture ratios using nonlinear regression analysis. The results of regression analysis indicated that the Midilli & Kucuk model gave the excellent fit for the drying data under all drying conditions with the lowest 2 and RMSE values and highest R2 value. The effective moisture diffusivity at each infrared power was determined by Fick’s second law of diffusion, an increase in the power led to increase in the effective moisture diffusivity between 8.54×10−10 and 2.32×10−9 m2/s. The dependence of effective moisture diffusivity on infrared power was expressed by a modified Arrhenius type equation. Activation energy was estimated as 3.91 kW/kg.

Keywords

References

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Details

Primary Language

English

Subjects

-

Journal Section

Research Article

Authors

Seda Tanta This is me
0000-0002-5524-2723
Türkiye

İbrahim Doymaz This is me
0000-0002-4429-6443
Türkiye

Publication Date

March 1, 2019

Submission Date

December 8, 2018

Acceptance Date

January 3, 2019

Published in Issue

Year 2019 Volume: 37 Number: 1

IZ

https://izlik.org/JA93ML42CY

Cite

RIS / Bibtex

APA

Tanta, S., & Doymaz, İ. (2019). DRYING OF OKRA BY INFRARED RADIATION. Sigma Journal of Engineering and Natural Sciences, 37(1), 93-104. https://izlik.org/JA93ML42CY

AMA

1.Tanta S, Doymaz İ. DRYING OF OKRA BY INFRARED RADIATION. SIGMA. 2019;37(1):93-104. https://izlik.org/JA93ML42CY

Chicago

Tanta, Seda, and İbrahim Doymaz. 2019. “DRYING OF OKRA BY INFRARED RADIATION”. Sigma Journal of Engineering and Natural Sciences 37 (1): 93-104. https://izlik.org/JA93ML42CY.

EndNote

Tanta S, Doymaz İ (March 1, 2019) DRYING OF OKRA BY INFRARED RADIATION. Sigma Journal of Engineering and Natural Sciences 37 1 93–104.

IEEE

[1]S. Tanta and İ. Doymaz, “DRYING OF OKRA BY INFRARED RADIATION”, SIGMA, vol. 37, no. 1, pp. 93–104, Mar. 2019, [Online]. Available: https://izlik.org/JA93ML42CY

ISNAD

Tanta, Seda - Doymaz, İbrahim. “DRYING OF OKRA BY INFRARED RADIATION”. Sigma Journal of Engineering and Natural Sciences 37/1 (March 1, 2019): 93-104. https://izlik.org/JA93ML42CY.

JAMA

1.Tanta S, Doymaz İ. DRYING OF OKRA BY INFRARED RADIATION. SIGMA. 2019;37:93–104.

MLA

Tanta, Seda, and İbrahim Doymaz. “DRYING OF OKRA BY INFRARED RADIATION”. Sigma Journal of Engineering and Natural Sciences, vol. 37, no. 1, Mar. 2019, pp. 93-104, https://izlik.org/JA93ML42CY.

Vancouver

1.Seda Tanta, İbrahim Doymaz. DRYING OF OKRA BY INFRARED RADIATION. SIGMA [Internet]. 2019 Mar. 1;37(1):93-104. Available from: https://izlik.org/JA93ML42CY