Hostname: page-component-84b7d79bbc-g5fl4 Total loading time: 0 Render date: 2024-07-27T22:38:48.730Z Has data issue: false hasContentIssue false

Microwave-Assisted Ignition

Published online by Cambridge University Press:  10 February 2011

J. K. Bechtold
Affiliation:
Department of Mathematics, Center for Applied Mathematics and Statistics, New Jersey Institute of Technology, University Heights, Newark, NJ 07102-1982
M. R. Booty
Affiliation:
Department of Mathematics, Center for Applied Mathematics and Statistics, New Jersey Institute of Technology, University Heights, Newark, NJ 07102-1982
G. A. Kriegsmann
Affiliation:
Department of Mathematics, Center for Applied Mathematics and Statistics, New Jersey Institute of Technology, University Heights, Newark, NJ 07102-1982
Get access

Abstract

The microwave heating and ignition of a combustible material is modeled and analyzed in the small Biot number and large activation energy regimes. Both the temporal and spatial evolution of the temperature within the material are described. The ignition characteristics are determined by a localized equation for the perturbation to the inert temperature, which is shown to exhibit thermal runaway behavior. Analysis of this local equation provides explicit ignition conditions in terms of the physical parameters in the problem.

Type
Research Article
Copyright
Copyright © Materials Research Society 1996

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

1. Yiin, T. and Barmatz, M., “Microwave Induced Combustion Synthesis of Ceramic and Ceramic-Metal Composites,” Microwaves: Theory and Application in Material Processing III, Ceramics Transactions, Vol.59 pp. 541547 (1995).Google Scholar
2. Sutton, W. H. in Microwave Processing of Materials III, MRS Symposium Proceedings, Vol.269, pp. 320 (1992).Google Scholar
3. Kriegsmann, G. A., “Thermal Runaway in Microwave Heated Ceramics: A One-Dimensional Model,” Journal of Applied Physics, Vol.71 pp. 19601966 (1992).Google Scholar
4. Liñan, A. and Williams, F.W., “Radiant Ignition of a Reactive Solid with In-Depth Absorption,” Combustion and Flame, 18 (1972), 8597.Google Scholar
5. Bechtold, J.K., Booty, M.R. and Kriegsmann, G. A., “Microwave Induced Combustion: A One-Dimensional Model,” in preparation (1996).Google Scholar