Measurement and numerical simulation of soot particle size distribution functions in a laminar premixed ethylene-oxygen-argon flame

Bin Zhao, Zhiwei Yang, Murray V. Johnston, Hai Wang, Anthony S. Wexler, Michael Balthasar, Markus Kraft

Research output: Contribution to journalArticle

192 Citations (Scopus)

Abstract

Spatially resolved measurement of the soot particle size distribution function (PSDF) was made in a laminar premixed ethylene-argon-oxygen flame (φ = 2.07) using a scanning mobility particle sizer. The emphasis of the study was to follow the evolution of the PSDF from the onset of particle inception to particle mass growth. At the onset of soot inception, the PSDF was found to follow a power-law dependence on particle diameter. The PSDF becomes bimodal at larger height above the burner surface, and remains bimodal throughout the flame. Numerical simulation using a kinetic model proposed previously and a stochastic approach to solve aerosol dynamics equations again showed a bimodal PSDF. Further analysis revealed that bimodality is intrinsic to an aerosol process involving particle-particle coagulation and particle nucleation dominated by monomer dimerization.

Original languageEnglish (US)
Pages (from-to)173-188
Number of pages16
JournalCombustion and Flame
Volume133
Issue number1-2
DOIs
StatePublished - Apr 1 2003

Fingerprint

Soot
Argon
soot
particle size distribution
Particle size analysis
Particles (particulate matter)
Distribution functions
flames
Ethylene
ethylene
distribution functions
argon
Oxygen
Computer simulation
oxygen
Aerosols
simulation
aerosols
Dimerization
Coagulation

Keywords

  • Premixed flame
  • Probe sampling
  • Size distribution
  • SMPS
  • Soot

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Fuel Technology
  • Mechanical Engineering

Cite this

Measurement and numerical simulation of soot particle size distribution functions in a laminar premixed ethylene-oxygen-argon flame. / Zhao, Bin; Yang, Zhiwei; Johnston, Murray V.; Wang, Hai; Wexler, Anthony S.; Balthasar, Michael; Kraft, Markus.

In: Combustion and Flame, Vol. 133, No. 1-2, 01.04.2003, p. 173-188.

Research output: Contribution to journalArticle

Zhao, Bin ; Yang, Zhiwei ; Johnston, Murray V. ; Wang, Hai ; Wexler, Anthony S. ; Balthasar, Michael ; Kraft, Markus. / Measurement and numerical simulation of soot particle size distribution functions in a laminar premixed ethylene-oxygen-argon flame. In: Combustion and Flame. 2003 ; Vol. 133, No. 1-2. pp. 173-188.
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