Volume 1 Issue 4
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Li, J., & Yu, S. (2003). Soot particles analysis in laminar premixed propane/oxygen (C3H8/O2) flames using published measurement data. China Particuology, 1(4), 168-171. https://doi.org/10.1016/S1672-2515(07)60135-3
Soot particles analysis in laminar premixed propane/oxygen (C3H8/O2) flames using published measurement data
Jinling Li *, Suyuan Yu
Institute of Nuclear Energy Technology, Tsinghua University, Beijing 100084, P. R. China
10.1016/S1672-2515(07)60135-3
Volume 1, Issue 4, September 2003, Pages 168-171
Received 7 August 2003, Accepted 29 August 2003, Available online 27 November 2007.
E-mail: jlli@mail.tsinghua.edu.cn

Highlights
Abstract

A laminar premixed Propane/Air flame with a fuel equivalence ratio of 2.1 was employed for analysis of soot particles. Zeroth-order lognormal distributions (ZOLD) were used in the analysis of experimental distribution phenomena at different residence times during soot formation in the flame. Rayleigh's theory and Mie's scattering theory were combined with agglomerate analysis using scattering and extinction data to determine the following soot characteristics: agglomerate parameters, volumetric fractions, mass flow rates and surface growth rate. Soot density measurements were carried out to determine density variations at different stages of growth. The measured results show that for long residence times the soot clearly crystallizes with higher density (up to 1.8 g·cm−3). The increases of soot volumetric fraction and mass flow rate indicate that the surface growth rate of soot particles exceeds the oxidation rates in the flame studied. The data obtained in this work would be used to study soot oxidation rate under flaming condition.

Graphical abstract
Keywords
soot particles; ZOLD; agglomerate parameters; surface growth rate; density