Measurement of smoke point in velocity-matched co-flow laminar diffusion flames with pure and diluted fuels at elevated pressures

T. L. Berry, William Roberts

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Using a co-flow burner, a quartz chimney, and a pressure vessel with good optical access, smoke points of pure and diluted fuels were measured in a laminar jet diffusion flame. The smoke point is a fundamental kinetic parameter, as this is the point where production of soot is exactly off-set by its oxidation. Ethylene and methane, burning in a velocity matched, over-ventilated co-flow of air, were tested over the range of one to sixteen atmospheres. The volumetric fuel flow, diluent flow, and flame height were measured as a function of pressure to determine the functional relationship between these parameters and pressure. For undiluted flames, the volumetric fuel flow at the smoke point is observed to scale as a power law with pressure, while the smoke point height is best described by a logarithmic law with pressure. For diluted flames, the smoke point increases as the percentage of diluent increases at both atmospheric and elevated pressure conditions.

Original languageEnglish (US)
Title of host publicationChemical and Physical Processes of Combustion - 2005 Technical Meeting of the Eastern States Section of the Combustion Institute
PublisherCombustion Institute
Pages129-132
Number of pages4
ISBN (Electronic)9781604235067
StatePublished - Jan 1 2005
Event2005 Technical Meeting of the Eastern States Section of the Combustion Institute: Chemical and Physical Processes of Combustion - Orlando, United States
Duration: Nov 13 2005Nov 15 2005

Publication series

NameChemical and Physical Processes of Combustion - 2005 Technical Meeting of the Eastern States Section of the Combustion Institute

Other

Other2005 Technical Meeting of the Eastern States Section of the Combustion Institute: Chemical and Physical Processes of Combustion
CountryUnited States
CityOrlando
Period11/13/0511/15/05

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Physical and Theoretical Chemistry
  • Mechanical Engineering

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