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Title: Modelling soot formation in a benchmark ethylene stagnation flame with a new detailed population balance model
Authors: Hou, Dingyu
Lindberg, Casper S.
Manuputty, Manoel Y.
You, Xiaoqing
Kraft, Markus
Keywords: Engineering::Chemical engineering
Issue Date: 2019
Source: Hou, D., Lindberg, C. S., Manuputty, M. Y., You, X., & Kraft, M. (2019). Modelling soot formation in a benchmark ethylene stagnation flame with a new detailed population balance model. Combustion and Flame, 203, 56-71. doi:10.1016/j.combustflame.2019.01.035
Journal: Combustion and Flame
Abstract: Numerical simulation of soot formation in a laminar premixed burner-stabilised benchmark ethylene stagnation flame was performed with a new detailed population balance model employing a two-step simulation methodology. In this model, soot particles are represented as aggregates composed of overlapping primary particles, where each primary particle is composed of a number of polycyclic aromatic hydrocarbons (PAHs). Coordinates of primary particles are tracked, which enables simulation of particle morphology and provides more quantities that are directly comparable to experimental observations. Parametric sensitivity study on the computed particle size distributions (PSDs) shows that the rate of production of pyrene and the collision efficiency have the most significant effect on the computed PSDs. Sensitivity of aggregate morphology to the sintering rate is studied by analysing the simulated primary particle size distributions (PPSDs) and transmission electron microscopy (TEM) images. The capability of the new model to predict PSDs in a premixed stagnation flame is investigated. Excellent agreement between the computed and measured PSDs is obtained for large burner-stagnation plate separation ( ≥ 0.7 cm) and for particles with mobility diameter larger than 6 nm, demonstrating the ability of this new model to describe the coagulation process of aggregate particles.
ISSN: 0010-2180
DOI: 10.1016/j.combustflame.2019.01.035
Rights: © 2019 The Combustion Institute. All rights reserved. This paper was published by Elsevier Inc in Combustion and Flame and is made available with permission of The Combustion Institute.
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:SCBE Journal Articles


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