3-D FEM MAGNETOTHERMAL ANALYSIS IN MICROWAVE-OVENS

A 3-D coupled electromagnetic and thermal model has been developed for analysis of microwave heating process . The electromagnetic computati on is performed with 3-D edge elements. This technique leads to an acc urate deterministic study of the electromagnetic field distribution in excited junctions containing lossy dielectrics. The heat conduction e quation is solved with 3-D nodal elements. The temperature dependance of the electromagnetic and heat process parameters is considered in co mputations. Examples are provided to validate the method.