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Engineering, Energy, Transport AIC

space SCIENTIFIC JOURNALS OF VINNITSA STATE AGRARIAN UNIVERSITY

Issue №: 4(107)

Published: 2019.12.20
DOI: 10.37128/2520-6168-2019-4


Description:
The journal addresses the problems of creating and improving machinery and technologies for agriculture, food and processing industries, mechanical engineering, energy and transport.

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PROBLEMATICS OF CONSTRUCTION OF MATHEMATICAL MODELS OF THE PROCESS OF MICROWAVE DRYING OF SOY

DOI: 10.37128/2520-6168-2019-4-3
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Bandura Valentyna Mykolaiivna – candidate of technical sciences, professor of the department "Agroengineering and technical service" of the Vinnytsia National Agrarian University (3, Solnyschaya st., Vinnytsia, 21008, Ukraine, e-mail: bandura_3@ukr.net).
Popiak Oleksandr Hennadiiovych – postgraduate student of the Department of Agroengineering and Technical Services of Vinnytsia National Agrarian University (3, Solnyschaya St., Vinnytsia, Ukraine, 21008).

Annotation

The article reviews various techniques for mathematical modeling of the soybean drying process. The purpose of this paper is to review, analyze and compare existing approaches to mathematically describe the processes of moisture movement during microwave drying of soybeans. The only way to provide mathematical modeling of the processes occurring in the soybean grain is a combination of the transformation of microwave energy into heat, the heating of dipole water molecules existing in the seed, the processes of moving moisture from the center to the grain shell and evaporation of moisture. Today, microwave drying is one of the promising areas for research, because this method is much more efficient than traditional post-harvest grain drying methods and, at the same time, poorly understood. Factors on which the process of microwave drying depends on are the speed of movement of moisture in the micropores of the product, the initial temperature and humidity of the raw material, the placement of the main magnetron relative to the object of drying and the speed of movement of raw materials in the drying chamber. The object of the study in this article was to simplify the mathematical model of soybean seeds.
To intensify the process of microwave drying, it is advisable to use a combined effect, such as blowing, which increases the intensity and quality of the process of microwave dehumidification. In addition, in this case, the simultaneous use of two or more factors of influence, which allows for rapid processing of raw materials. This determines the relevance and prospects of this study. The developed criteria criterion is substantiated and described, which allows to simplify the complex calculation of microwave energy transfer processes, sample heating and moisture velocity in it.
The basic approaches to the construction of a mathematical model of the soybean drying process are considered, and their expediency is determined. The analysis of various methods of mathematical description of the drying process is carried out, the main disadvantages of these methods are identified. It is established that drying soybean seeds in the microwave field is one of the most promising. A mathematical model for a combined soybean drying process with a combination of microwave drying methods and air blowing is proposed.

Keywords: soybean, grain, drying, equation, environment, humidity.

List of references

[1]    Brodie, G., Jacob, M. V., Farrell, P. (2015). Microwave and Radio-Frequency Technologies in Agriculture. An Introduction for Agriculturalists and Engineers, Warsaw/Berlin: Published by De Gruyter. [in English].
[2]    Jayasanka, S. M. D. H. (2014). The significance of microwaves in the environment and its effect on plants. Environmental Reviews, (22), Issue 3, 220–228. [in English].
[3]    Li, Y., Zhang, T., Wu, C., Zhang, C. (2014). Intermittent microwave drying of wheat. Journal of Experimental Biology and Agricultural Sciences, (2), Issue 1, 32–36. [in English].
[4]    Puligundla, P. (2013). Potentials of Microwave Heating Technology for Select Food Processing Applications – a Brief Overview and Update. Journal of Food Processing & Technology, (4), 11. [in English].
[5]    Hoogenboom R., Wilms, T. F. A., Erdmenger, T., Schubert, U. S. (2009). Microwave-Assisted Chemistry: a Closer Look at Heating Efficiency. Australian Journal of Chemistry, (62), Issue 3, 236. [in English].
[6]    Kotov, B. I., Spirin, A. V., Zozuliak, I. A., Pivniuk, A. V. (2017) Rozrakhunok kinetyky sushinnia neodnoridnykh roslynnykh materialiv [Calculation of drying kinetics of inhomogeneous plant materials]. Tekhnika, enerhetyka, transport APK, 1(96), 96–99. [in Ukrainian].
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About journal

Topics of the journal:

The journal "Engineering, Energy, Transport AIC" on its pages presents materials on the following issues:

• Machine use in crop production and in animal husbandry

• Technical service of mobile equipment

• Processes and equipment for processing and food productions

• Mechanical engineering and material processing

• Energy technology and alternative energy sources

• Transport and transport-technological processes and equipment

• Automation of technological processes

• Opinion of a young scientist

Key information:
ISSN (print): 2520-6168
DOI:

ISSN (print): 2520-6168

Certificate of state registration of mass media: No. 21906-11806 P dated 03/12/2016.

Founder of the journal: Vinnytsia National Agrarian University

Editor-in-chief: Tokarchuk Olexiy A.

Ph.D., Assoc., VNAU (Vinnytsia)

Deputy Editor-in-Chief: Veselovska Nataliia R.

Doctor of Technical Sciences, Full Prof., VNAU (Vinnytsia)

Executive Secretary: Polevoda Yuri A.

Ph.D., Assoc., VNAU (Vinnytsia)

Members of the Editorial Board:

Tokarchuk O.A. - Ph.D., Associate Professor, Vinnytsia National Agrarian University

Veselovska N.R. - Doctor of Technical Sciences, Full Professor, Vinnytsia National Agrarian University

Bulgakov V.M. - Doctor of Technical Sciences, Full Professor, Acad. NAAS, National University of Life and Environmental Sciences of Ukraine

Iskovich-Lototsky R.D. - Doctor of Technical Sciences, Full Professor, Vinnytsia National Technical University

Bandura V. N. - Ph.D., Full professor, Vinnytsia National Agrarian University

Polevoda Yu.A. - Ph.D., Associate Professor, Vinnytsia National Agrarian University

Tsurkan A.V. - Ph.D., Associate Professor, Vinnytsia National Agrarian University

Ivanchuk Y.V. - Ph.D., Associate Professor, Vinnytsia National Technical University

Jordan Todorov Maximov - Doctor of Technical Sciences, Full Professor, Technical University of Gabrovo (Bulgaria)

Type of publication: journal

Kind of publication: scientific

Publication status: domestic

Year of foundation: 1997

Periodicity: 4 times per year

Volume: 18.75 conv. print. sheet

ISSN: 2520-6168 (print version), (online version)

Language of publication: (mixed languages) Ukrainian, Russian, English

The sphere of distribution and category of readers: national, foreign, faculty, scientists, entrepreneurs.

The periodical edition is included to the List of scientific professional publications of Ukraine on technical sciences, approved by order of the Ministry of Education and Science of Ukraine in 05.16.2016, No. 515.

The journal "Engineering, Energy, Transport AIC" is included in the "Catalog of Ukrainian Publications".

Subscription to the journal can be issued in each post office. The subscription index is 99720.

History of journal:

It was founded in 1997 under the title "Bulletin of the Vinnitsa State Agricultural Institute." According to the Decree of the Presidium of the Higher Attestation Commission of Ukraine of September 11, 1997, this publication received the status of a professional in which it is allowed to publish the main results of dissertation researches.

In 2001-2014 the journal published under the title “Collection of scientific works of Vinnytsia National Agrarian University. Series: Technical Sciences "(Certificate of State Registration of Mass Media KV No. 16644-5116 PR of 04/30/2010).

Since 2015 journal has title "Engineering, Energy, Transport AIC" (Certificate of State Registration of Mass Media No. 21906-11806 P dated 03/12/2016).