Uniform heating of thin ceramic slabs in a multimode microwave cavity

Two-dimensional reaction diffusion equations, which contain a functional and an inhomogeneous source term, are good models for describing microwave heating of thin ceramic slabs and cylinders in a multi mode, highly resonant cavity. A thin ceramic slab situated in a TEN03 rectangular cavity modeled in the small Biot number limit and a thin silicon wafer situated in a TM101 cylindrical cavity modeled in the small fineness ratio limit are studied to gain insight into the dynamics of the heating process. The evolution of temperature is governed by a two-dimensional reaction diffusion equation and a spatially non-homogeneous reaction term. Numerical methods are applied to accurately approximate the steady state leading order temperature of this equation and to determine the stability of solutions for Neumann boundary conditions. The choices of parameters in the equation that lead to uniform heating of the ceramic slab have been characterized.

Name thesis:degree_name

Doctor of Philosophy in Mathematical Sciences - (Ph.D.)

Discipline thesis:degree_discipline

Mathematical Sciences

Year

2011

Author dc:creator

• Agrawal, Shuchi

Contributors dc:contributor

• Gregory A. Kriegsmann
• Gerald Martin Whitman
• Michael R. Booty

• Microwave cavity
• Uniform heating
• Rectangular slab
• S-shaped curve
• Cylindrical wafer
• Multi mode
• Mathematics

Repository record dc:identifier

https://digitalcommons.njit.edu/dissertations/273

OAI identifier oai:identifier

oai:digitalcommons.njit.edu:dissertations-1328