Experimental and numerical investigation of fuel mixing effects on soot structures in counterflow diffusion flames

Byungchul Choi; Sangkyu Choi; Suk Ho Chung; Jiseong Kim; Jaehyuk Choi

doi:10.1007/s12239-011-0022-z

Experimental and numerical investigation of fuel mixing effects on soot structures in counterflow diffusion flames

Byungchul Choi, Sangkyu Choi, Suk Ho Chung, Jiseong Kim, Jaehyuk Choi

Research output: Contribution to journal › Article › peer-review

23 Scopus citations

Abstract

Experimental and numerical analyses of laminar diffusion flames were performed to identify the effect of fuel mixing on soot formation in a counterflow burner. In this experiment, the volume fraction, number density, and particle size of soot were investigated using light extinction/scattering systems. The experimental results showed that the synergistic effect of an ethylene-propane flame is appreciable. Numerical simulations showed that the benzene (C6H6) concentration in mixture flames was higher than in ethylene-base flames because of the increase in the concentration of propargyl radicals. Methyl radicals were found to play an important role in the formation of propargyl, and the recombination of propargyl with benzene was found to lead to an increase in the number density for cases exhibiting synergistic effects. These results imply that methyl radicals play an important role in soot formation, particularly with regard to the number density. © 2011 The Korean Society of Automotive Engineers and Springer-Verlag Berlin Heidelberg.

Original language	English (US)
Pages (from-to)	183-191
Number of pages	9
Journal	International Journal of Automotive Technology
Volume	12
Issue number	2
DOIs	https://doi.org/10.1007/s12239-011-0022-z
State	Published - Mar 26 2011

Bibliographical note

KAUST Repository Item: Exported on 2020-10-01
Acknowledgements: This work was supported by National Research Foundation of Korea Grant funded by the Korean Government (KRF-2008-313-D00105) and KAUST CCRC of Saudi Aramco.

ASJC Scopus subject areas

Automotive Engineering

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title = "Experimental and numerical investigation of fuel mixing effects on soot structures in counterflow diffusion flames",

abstract = "Experimental and numerical analyses of laminar diffusion flames were performed to identify the effect of fuel mixing on soot formation in a counterflow burner. In this experiment, the volume fraction, number density, and particle size of soot were investigated using light extinction/scattering systems. The experimental results showed that the synergistic effect of an ethylene-propane flame is appreciable. Numerical simulations showed that the benzene (C6H6) concentration in mixture flames was higher than in ethylene-base flames because of the increase in the concentration of propargyl radicals. Methyl radicals were found to play an important role in the formation of propargyl, and the recombination of propargyl with benzene was found to lead to an increase in the number density for cases exhibiting synergistic effects. These results imply that methyl radicals play an important role in soot formation, particularly with regard to the number density. {\textcopyright} 2011 The Korean Society of Automotive Engineers and Springer-Verlag Berlin Heidelberg.",

author = "Byungchul Choi and Sangkyu Choi and Chung, {Suk Ho} and Jiseong Kim and Jaehyuk Choi",

note = "KAUST Repository Item: Exported on 2020-10-01 Acknowledgements: This work was supported by National Research Foundation of Korea Grant funded by the Korean Government (KRF-2008-313-D00105) and KAUST CCRC of Saudi Aramco.",

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doi = "10.1007/s12239-011-0022-z",

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T1 - Experimental and numerical investigation of fuel mixing effects on soot structures in counterflow diffusion flames

AU - Choi, Byungchul

AU - Choi, Sangkyu

AU - Chung, Suk Ho

AU - Kim, Jiseong

AU - Choi, Jaehyuk

N1 - KAUST Repository Item: Exported on 2020-10-01 Acknowledgements: This work was supported by National Research Foundation of Korea Grant funded by the Korean Government (KRF-2008-313-D00105) and KAUST CCRC of Saudi Aramco.

PY - 2011/3/26

Y1 - 2011/3/26

N2 - Experimental and numerical analyses of laminar diffusion flames were performed to identify the effect of fuel mixing on soot formation in a counterflow burner. In this experiment, the volume fraction, number density, and particle size of soot were investigated using light extinction/scattering systems. The experimental results showed that the synergistic effect of an ethylene-propane flame is appreciable. Numerical simulations showed that the benzene (C6H6) concentration in mixture flames was higher than in ethylene-base flames because of the increase in the concentration of propargyl radicals. Methyl radicals were found to play an important role in the formation of propargyl, and the recombination of propargyl with benzene was found to lead to an increase in the number density for cases exhibiting synergistic effects. These results imply that methyl radicals play an important role in soot formation, particularly with regard to the number density. © 2011 The Korean Society of Automotive Engineers and Springer-Verlag Berlin Heidelberg.

AB - Experimental and numerical analyses of laminar diffusion flames were performed to identify the effect of fuel mixing on soot formation in a counterflow burner. In this experiment, the volume fraction, number density, and particle size of soot were investigated using light extinction/scattering systems. The experimental results showed that the synergistic effect of an ethylene-propane flame is appreciable. Numerical simulations showed that the benzene (C6H6) concentration in mixture flames was higher than in ethylene-base flames because of the increase in the concentration of propargyl radicals. Methyl radicals were found to play an important role in the formation of propargyl, and the recombination of propargyl with benzene was found to lead to an increase in the number density for cases exhibiting synergistic effects. These results imply that methyl radicals play an important role in soot formation, particularly with regard to the number density. © 2011 The Korean Society of Automotive Engineers and Springer-Verlag Berlin Heidelberg.

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DO - 10.1007/s12239-011-0022-z

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JO - International Journal of Automotive Technology

JF - International Journal of Automotive Technology

IS - 2

ER -

Experimental and numerical investigation of fuel mixing effects on soot structures in counterflow diffusion flames

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