The effects of hydrogen addition on silica aggregate growth in atmospheric-pressure, 1-D methane/air flames with hexamethyldisiloxane admixture

Peter N. Langenkamp, Howard B. Levinsky, Anatoli V. Mokhov*

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

1 Citation (Scopus)

Abstract

The effect of hydrogen addition on silica growth in burner-stabilized methane/air flames with trace amounts of hexamethyldisiloxane are reported. Profiles of the aggregates' radius of gyration R-g and monomer radius a versus residence time were measured by laser light scattering. Experiments were performed at equivalence ratios of 0.8, 1.0 and 1.3, with mole fractions of 0-0.4 of hydrogen in the fuel. At equal mass flux, the addition of hydrogen was found to result in decreasing R-g and a. However, keeping the flame temperature rather than the mass flux constant upon hydrogen addition resulted in the same measured profiles. (C) 2017 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.

Original languageEnglish
Pages (from-to)2997-3003
Number of pages7
JournalInternational Journal of Hydrogen Energy
Volume43
Issue number5
DOIs
Publication statusPublished - 1-Feb-2018

Keywords

  • Nanoparticles
  • Flames
  • Laser scattering
  • Fractal aggregates
  • Siloxanes
  • LAMINAR BURNING VELOCITIES
  • DYNAMIC LIGHT-SCATTERING
  • COFLOW DIFFUSION FLAME
  • IN-SITU MEASUREMENT
  • ENRICHED METHANE
  • PARTICLES
  • BIOGAS
  • TEMPERATURE
  • COMBUSTION
  • MIXTURES

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