The radiation and heat loss effects on the premixed flame propagation through lycopodium dust particles

This paper presents a new analytical model for predicting non-adiabatic dust flame with the assumptions that the flame structure is composed of a preheat zone, a reaction zone and a post flame. It is presumed that part of fuel particles vaporize to yield a gaseous fuel, and therefore the vaporization term is added into the preheat zone. Then, the radiation and heat loss effects are applied in the governing equations for lean mixtures. It is declared that the flame temperature decreases at the post flame zone while the radiation and heat loss effects are considered. Consequently, it is observed that the calculated values of flame temperature are in the good agreement with the experimental data in the literature. (C) 2010 Taiwan Institute of Chemical Engineers. Published by Elsevier B.V. All rights reserved.