Effects of m-xylene, dodecane and JP-8 addition on soot in laminar, N2-diluted ethylene co-flow diffusion flames from 1 to 5 atm

A. G. Mouis, V. R. Iyer, M. J. Linevsky, Thomas Litzinger, R. J. Santoro

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Experimental data are presented for the effects of addition of hydrocarbon fuels on soot volume fractions for a nitrogen-diluted ethylene flame over a range of pressures from 1 to 5 atm. The fuels investigated were m-xylene, dodecane, a 77% dodecane/23% m-xylene mixture, and JP-8. The mixture was chosen to match the Threshold Soot Index of JP-8. The experimental approach was designed to investigate the effects of fuel addition as a perturbation to the base flame by keeping the amount of carbon added as liquid fuel small compared to the total carbon flow rate. Each liquid fuel was studied at two concentrations. The two concentrations used were chosen such that 2.5% and 5% of the total carbon flow rate was supplied by the liquid fuel. Total carbon flow rate was held constant for all the flames. The soot volume fractions were measured using planar laser induced incandescence. The experimental results indicate that the increase in peak soot levels caused by the substitution of the liquid fuel for ethylene is roughly first order with respect to the amount of fuel added. The peak soot volume fractions for the fuels generally follow the trends expected from TSI measurements for each component. The maximum soot volume fractions were found to vary linearly with pressure from 2 to 5 atm.

Original languageEnglish (US)
Title of host publicationFall Technical Meeting of the Eastern States Section of the Combustion Institute 2011
PublisherCombustion Institute
Pages304-310
Number of pages7
ISBN (Electronic)9781622761258
StatePublished - 2011
EventFall Technical Meeting of the Eastern States Section of the Combustion Institute 2011 - Storrs, United States
Duration: Oct 9 2011Oct 12 2011

Other

OtherFall Technical Meeting of the Eastern States Section of the Combustion Institute 2011
CountryUnited States
CityStorrs
Period10/9/1110/12/11

All Science Journal Classification (ASJC) codes

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

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