Journal of Microwave Power and Electromagnetic Energy (JMPEE)

 

TITLE

Parameter Optimisation Modelling Using Stationary 1D-Electrothermal Model to Improve Temperature Homogeneity [PDF]

AUTHORS

M. Paulson, L. Feher and M. Thumm

2004

39

3&4

141-152

YEAR

VOLUME

ISSUE

PAGES

 

Abstract

A parameter optimisation model is developed to find the parameters that give significant effects on homogeneous temperature distribution during microwave processing of materials. Electromagnetic, thermal and processing parameters are collected for a wide variety of materials and the heating profiles are calculated using a stationary 1D-electrothermal model. Measure of temperature homogeneity is obtained from the heating profiles by statistical calculations of normalised variance (response variable). The processing parameters (power, temperature, size of the material sample) are optimised for all these materials for a minimum normalised variance which allows maximum change of 3% T-average on the T-distribution to meet most of the industrial process requirements. These mathematical modelling suggests a group of materials, which requires modifications in processing conditions for achieving uniform heating.