Laser-induced incandescence and Raman measurements in sooting methane and ethylene flames
Abstract
Laser-induced incandescence (LII) of soot particles is modeled using two non-linear coupled differential equations deduced from the energy- and mass-balance of the process. Experimental data of laminar sooting diffusion flames are taken and the model function is fitted to the individual data curves of every pixel in the two-dimensional flame image. The results of the least squares fit are maps of the soot particle radii and number densities in the flame. Methane and