Biological Systems Engineering


Date of this Version



2010 PROCEEDINGS, International Microwave Power Institute’s 44th Annual Symposium, DENVER, July 14-16, 2010


In this study a computer model was developed to simulate microwave heating of a model food with a range of magnetron frequencies. The range was decided upon performing the frequency spectrum analysis of microwave leakage from the microwave oven. Simulation results showed that the magnetron input as sinusoidal frequency from 2.44 GHz to 2.48 GHz generates different heating profiles. The simulated heating profiles were compared with experimental heating profiles obtained by using an IR camera. None of simulations with individual frequency exactly matches with experimental temperature profile. The closet match between simulated and observed temperature profiles was found with 2.46 GHz frequency. This study helped us to understand the dynamic nature of magnetron and how it influences microwave heating pattern of any food materials.