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Heating of the moving object in microwave ray type chamber


K.N. Ogurtsov – Ph. D. (Eng.), Dr. Sc. Candidate, Associate Professor, Department «Power Supply and Electrotechnology», Yuri Gagarin State Technical University of Saratov
I.N. Antonov – Dr. Sc. (Eng.), Professor, Department «Power Supply and Electrotechnology», Yuri Gagarin State Technical University of Saratov

The propagation of a plane electromagnetic wave in a multi-parametric environment with varying dielectric properties is reviewed in this publication. We solved the Helmholtz’s equation with the appropriate boundary conditions. The mathematical modeling of the electromagnetic field distribution, as well as of internal heat sources in multilayer parametric environment as conducted.
Multilayer parametric medium can be both combination of flat objects with different dielectric properties, and dispersion system with unevenly distributed dispersed phase absorbing microwave energy.
The layers of material to be treated may be air gaps between the reflecting surface and the object under processing, transfer belt, layers of the composite material, and the matching quarter-wave transformer, etc.
The paper proposed to use an inclined reflector for returning the reflected energy from the surface of the heated object. It allows you to increase the proportion accounted for mathematical modeling of energy and improve the efficiency of microwave electrothermal devises. The results of solving the joint problem electrodynamics and thermal conductivity for moving dielectric heating in the ray chamber with sloping reflector, and without it are presented.
Using slope reflector allows to take into account in the mathematical modeling of more than 75 percent of the microwave energy. Constructions with inclined reflector advantageously used in continuous treatment plants materials, for example for the treatment of disperse systems in a methodical mode.

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