ESTIMATION OF THERMOPHYSICAL PROPERTIES OF FAR INFRARED VACUUM DRYING POTATO BY APPLICATION OF INVERSE APPROACH

Mitrevski, Vangelce and Dedinac, Aleksandar and Mitrevska, Cvetanka (2022) ESTIMATION OF THERMOPHYSICAL PROPERTIES OF FAR INFRARED VACUUM DRYING POTATO BY APPLICATION OF INVERSE APPROACH. Thermal Science, 25 (1B). pp. 603-611. ISSN 0354-9836

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Abstract

In this paper the estimation of the moisture diffusivity, together with other ther�mophysical properties of a far-infrared vacuum dried potato slices by using an
inverse approach were studied. In direct problem a mathematical model of the far-infrared vacuum drying process of shrinking bodies was used. The Leven�berg-Marquardt method was used to solve the inverse problem. An analysis of the influence of the vacuum pressure, temperature of heaters, drying body dimension, and drying time, that enables the design of the proper experiments by using the
so-called D-optimum criterion was conducted. The estimated values of moisture diffusivity of potato obtained from this study are within the range from 5.14·10–8to 5.01·10–9 m2/s. The experimental transient temperature and moisture content
changes during the far infrared vacuum drying were compared with numerical calculated values.

Item Type:	Article
Subjects:	Scientific Fields (Frascati) > Engineering and Technology > Mechanical engineering
Divisions:	Faculty of Technical Sciences
Depositing User:	Prof. d-r. Vangelce Mitrevski
Date Deposited:	07 Sep 2023 08:06
Last Modified:	07 Sep 2023 08:06
URI:	https://eprints.uklo.edu.mk/id/eprint/8828

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