An Analysis of Critical Ignition and Extinction Diameters of Solid Particles

Abstract

This paper gives an analysis of the influence of solid matter consumption on the critical diameters for the ignition and extinction of a single particle of solid fuel. The Thomas theory of ignition with reactant consumption for the pre-mixed system was adopted for obtaining the formula for the critical diameters of ignition and extinction. The calculations made for the coal particle show that consumption deflects the critical diameter of extinction about two times stronger than that for ignition