Computational Method of Impact of Microwave Radiation on Materials with Larger Dielectric Loss

The results of theoretical and experimental research in the field of heat treatment of bulk dielectric materials using microwave radiation on the electromagnetic field frequency oscillations of 2,45 GHz. Microwave technologies are the most efficient, energy-saving and environmentally friendly heat treatment of bulk dielectric materials that reflect the relevance of the work delivered. Developed a design of a microwave installation radiation type, continuous, with a capacity of 7,2 kW for heat treatment of a wide spectrum of bulk dielectric materials. A distinctive feature of the electrodynamic systems of microwave installation is that its shape, dimensions and location on the camera sources of microwave energy are selected in such a way as to form a uniform heating of the processed materials with different dielectric parameters. The proposed model and the method of calculating the temperature of the treated materials. The discrepancy between calculated and measured values of temperature in the volume of processed materials with different dielectric losses did not exceed 4%, and the deviation of the measured values of the temperature of the material from the nominal values of the material temperature did not exceed 8%. The methods of reducing the spurious radiation from microwave devices radiation type, designed for heat treatment of dielectric materials in the conveyor mode. It is shown that the level of power density spurious emissions from the operation of a microwave installation radiation of the type employed in the conveyor mode, does not exceed 10 µw/cm2, which provides safe work of the personnel and does not disrupt the surrounding equipment.