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- Title
Hybrid thermo-electromagnetic model in the Drying Processes in a Microwave Field.
- Authors
MARGHITAS, O.; HATHAZI, F. I.; SOPRONI, V. D.; MICU, Dan D.; IANCU, V.
- Abstract
The paper presents aspects of numerical modelling of a drying process of a material (product) in a microwave field. To provide simulation results, first it is necessary to develop a hybrid model by coupling the electromagnetic field equations and heat transport equations together and then solve the mathematical model by using combined numerical methods. To complete the computation, using the discretization of the obtained equations, we use the Partial Element Equivalent Circuit (PEEC) method. The large non-symmetric sparse system it was efficiently solved with a complex version of the Conjugate Gradient Method, implemented in MathCad program. Was developed an algorithm based on coupling a Variable Time Step Finite Difference Method and Control Surface Method to solve the equations uniformly. It is shown an application of numerical modelling, using numerical techniques, for study of the heating of some dielectrics with losses, of parallelepiped shape, situated in a applicator, excited with energy through a wave guide. The paper has an applicative research character, the obtained results being of practical use.
- Subjects
THERMAL electromotive force; MICROWAVE field effect transistors; SIMULATION methods &; models; ELECTROMAGNETIC fields; DISCRETIZATION methods; NUMERICAL analysis
- Publication
Acta Electrotehnica, 2013, Vol 54, Issue 1, p76
- ISSN
1841-3323
- Publication type
Article