Measurement Techniques for Soot in Pulverized Coal Combustion Fields

Abstract

In this paper, results of experiments that authors carried out to investigate soot formation in pulverized coal combustion fields were summarized. Soot particles form at the local spatial and temporal scales. Hence, laser induced incandescence (LII), which has high spatial and temporal resolution, was applied to the measurement of soot volume fraction. Firstly, details of LII in the present study is described. Secondly, soot formation from pulverized coal were measured by LII measurement and simultaneous measurements of Mie scattering and Laser induced fluorescence (LIF). Finally, soot growth, agglomeration, and oxidation processes were investigated through Time-Resolved LII (TiRe-LII).