DISTRIBUTION OF HEAT ENERGY IN THE LUMBER SAMPLES DURING HEATING OF MICROWAVE POWER WITH FREQUENCY OF 2,45 GHZ
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Abstract
The electrodynamic problem of the direct and the angles of incidence of the microwave field of 2.45 GHz waveguide-slot antenna on a semi-infinite plate with a dielectric characteristics of the corresponding timber in the perpendicular orientation vector of the incident field with respect to the fibers are considered. The problem of radiation energy of the microwave field plate of finite thickness in the standing waves formed by reflection from a metal surface, placed over the plate are considered. The numerical solution of the tasks the finite element method in two-dimensional region. Presented and analyzed the results of modeling – the dependence of the penetration depth of thermal power released in the plate and the reflection coefficient of the microwave field from the plate, depending on its moisture content, temperature and angle of the incident antenna, as well as the distribution of thermal power in the cross section of plates of different thicknesses corresponding to the thickness of standard lumber assortments.
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References
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