Maximum Achievable Temperature in Microwave Electrothermal Installations

Most often, microwave heating dielectrics is used for thermal treatment of dielectrics at the temperatures up to 150°C. For a number of the technological processes, it is required heating the dielectrics up to the temperatures over 1000°C. However, the possibility to achieve like temperature remains not realized.

In the article, on the basis of the equations of the heat balance for dielectrics of the cubic form, it is received the relationship for calculating the temperature of dielectrics depending on the time tacking into account the heat losses caused by the convection and heat radiation. The possibility to solve approximately the problem of maximum achievable temperature of the processed dielectrics at multi-generators scheme of microwave power feeding at the microwave frequencies allowed to use in technological installation is considered.