Scientia Iranica

Scientia Iranica

Lycopodium Dust Flame Characteristics Considering Char Yield

Authors
1 School of Mechanical Engineering Department of Energy Conversion, Combustion Research Laboratory, Iran university of Science and Technology, Narmak, Tehran, Iran
2 School of Mechanical Engineering Department of Aerospace Engineering, Iran university of Science and Technology, Narmak, Tehran, Iran
Abstract
Organic dust flames deal with a field of science in which many complicated phenomena like pyrolysis or devolatization of solid particles and combustion of volatile and char particles take place. One-dimensional flame propagation in the cloud of fuel mixture has been analyzed in which flame structure is divided into three zones: preheat zone, reaction zone and post flame zone.It is assumed that particles pyrolyze first to yield a fuel mixture consisting of gaseous and charry fuel. In this research, the effect of char content on pyrolysis process has taken into account and a novel non-linear burning velocity correlation is obtained. Our results are in a reasonable agreement with experimental data.
Keywords

Volume 20, Issue 6 - Serial Number 12
Transactions on Mechanical Engineering (B)
December 2013
Pages 1781-1791

  • Receive Date 05 August 2013
  • Accept Date 27 July 2017