Microwave Heating of Chemical Reaction System with Complex Permittivity

M. Hashiguchi
Keisoku Engineering System Co., Ltd., Tokyo, Japan

Heating mechanism of reactive system under microwave irradiation is computationally studied. TE10 incident wave (2.45GHz and 500W) through a rectangular waveguide and a one step global reaction, A+B=>C, are considered here. It is assumed that the reactants A and B have a complex permittivity and the product C has only real part of permittivity. The governing equations are solved by using COMSOL Multiphysics. As a result, rapid change of temperature was reproduced.