A Modeling Study on the Nucleation, Growth and Coagulation of Soot Particles in Combustion Flame

Jian Yi Lv; Xu Dan Ren; Jie Gao

doi:10.4028/www.scientific.net/AMR.953-954.1167

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A Modeling Study on the Nucleation, Growth and Coagulation of Soot Particles in Combustion Flame
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Electrochemical Fixation of Carbon Dioxide for Synthesis Dimethyl Carbonate in Ionic Liquid BMimBr
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Energy Efficiency Assessment and Exergy Analysis for Lignite Pyrolysis Process System
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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 953-954A Modeling Study on the Nucleation, Growth and...

A Modeling Study on the Nucleation, Growth and Coagulation of Soot Particles in Combustion Flame

Abstract:

Soot, a crucial component of PM_2.5 in the ambient air, is a prime product of incomplete combustion of fule. The present paper uses a series of models, including nucleation of soot precursors, surface growth of soot particles as well as particles coagulation, to do numerical simulation of soot particles formation mechanism over time in combustion flame, with the aid of MATLAB platform by C language. Simulation results indicate that the concentration distribution of soot precursors like polycyclic aromatic hydrocarbons (PAHs) have direct effect on the concentration distribution of soot nuclei. Mass addition rate on soot particles surface rises over time since the enlargement of the surface area. In coagulation process, the number of small diameter particles decreases, while that of large diameter particles increases.