Laminar flame speeds of cyclohexane and mono-alkylated cyclohexanes at elevated pressures

Fujia Wu, Andrew P. Kelley, Chung King Law

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

Abstract

Laminar flame speeds of cyclohexane, methyl-cyclohexane and ethyl-cyclohexane at atmospheric and elevated pressures up to 20 atm were determined in a heated, dual-chamber vessel using nonlinear extrapolation. Calculated values using JetSurf 2.0 mechanism yielded satisfactory agreement with the present measurements at all pressures, with slight over-prediction at 1 atm. Results show that the flame speeds of methyl-cyclohexane and ethyl-cyclohexane are similar, while those of cyclohexane are higher by 5% at 1 atm and 13% at 10 atm. Examination of computed flame structure shows that owing to its special, symmetric ring structure, cyclohexane produces substantially more chain-branching C2 and C4 intermediates than the relatively less reactive C3 intermediates. On the contrary, a more balanced distribution of C2-C4 intermediates is present in flames of methyl- and ethyl-cyclohexane due to the substitution of alkyl group for H.

Original languageEnglish (US)
Title of host publicationFall Technical Meeting of the Eastern States Section of the Combustion Institute 2011
PublisherCombustion Institute
Pages331-348
Number of pages18
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

Publication series

NameFall Technical Meeting of the Eastern States Section of the Combustion Institute 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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