V.Ya. Yavchunovsky – Dr.Sc. (Phуs.-Math.), General Director, 

SPC «ETNA PLYUS» (Saratov)

E-mail: vyy@etna.su

A.K. Kobets – Post-graduate Student, 

Department of Solid State Physics, 

Saratov National Research State University named after N. G. Chernyshevsky

E-mail: cobets.alexander@yandex.ru

V.A. Tolstov – Under-graduate Student, 

Department of Electric Power Engineerig and Electrotechnology, 

Yuri Gagarin State Technical University of Saratov 

E-mail: v.tolstof@yandex.ru 

E. I. Yusov – Engineer, 

SPC «ETNA-PLYUS» (Saratov) 

E-mail: yusov.evgeniy@etna.su

While setting up microwave drying and disinfecting production facilities, industrial conveyor systems manufactured by the Russian company Etna-Plus LTD, built on a combination of oversized grooved waveguides connected in parallel, were widely used. However, for a number of practical purposes, in particular, for small farms, much smaller miniature plants of lower productivity are required. One of the options for such equipment, using the motion of the interaction of microwave radiation with dielectric products moving along a closed circular path, is proposed and investigated in this article. Special attention was paid to implementation of the most uniform distribution of high-frequency field energy along the width of the annular ribbon of the product moving along a circular path.  In order to develop and create such equipment, the distribution of energy release in a dissipative dielectric layer moving along circular paths in the microwave electromagnetic field inside an electrodynamic system constructed from a combination of parallel grooved waveguides (GW) was studied. 

The basic design relationships are obtained, which are necessary for modeling of processes in a system of GW loaded by dielectric. It has been shown that for the selected best sizes of the annular layer and for attenuation parameters, typical for such processes in the dielectric (including the one corresponding to the last stage of microwave drying), the maximum difference in the energy, obtained by unit volumes of dissipative dielectric objects moving along circular paths at the maximum and minimum radii of the ring, is only a few percent. 

The proposed on the basis of the calculations design of such equipment allows to solve the problem of creating miniaturized microwave installations with a ring conveyor and to ensure high uniformity of field dissipation in their working area, and to realize highquality dried products in them.

The basic relations obtained in this work can be used for calculation and simulation of microwave drying equipment with the circular motion of dielectric objects of various levels of productivity.

Явчуновский В.Я., Кобец А.К., Толстов В.А., Юсов Е.И. Распределение выделения СВЧ-энергии в диссипативном диэлектрическом слое, движущемся по круговой траектории через совокупность желобковых волноводов // Радиотехника. 2020. Т. 84. № 8(15). С. 13−20. DOI: 10.18127/j00338486-202008(15)-02.

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