Flame propagation and counterflow nonpremixed ignition of mixtures of methane and ethylene

W. Liu, A. P. Kelley, C. K. Law

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

Abstract

The ignition temperature of nitrogen-diluted mixtures of methane and ethylene counterflowing against heated air was measured up to 5 atmospheres. In addition, the stretch-corrected laminar flame speeds of mixtures of air, methane and ethylene were determined from the outwardly propagating spherical flame of up to 10 atmospheres, for extensive range of the lean-to-rich equivalence ratio. These experimental data, relevant to low-temperature ignition chemistry and high-temperature flame chemistry, respectively, were subsequently compared with calculations using two detailed kinetic mechanisms. Furthermore, the hierarchical structure of the associated oxidation kinetics was examined by comparing the sizes and constituents of the skeletal mechanisms of the pure fuels and their mixtures, derived using the method of directed relation graph (DRG). The skeletal mechanism was further reduced by the time-scale analysis and a 24- species reduced mechanism was obtained from the detailed mechanism of USC Mech II, valid within the parameter space of the conducted experiments.

Original languageEnglish (US)
Title of host publicationFall Meeting of the Eastern States Section of the Combustion Institute 2009
PublisherCombustion Institute
Pages293-300
Number of pages8
ISBN (Electronic)9781615676682
StatePublished - Jan 1 2009
EventFall Meeting of the Eastern States Section of the Combustion Institute 2009 - College Park, United States
Duration: Oct 18 2009Oct 21 2009

Publication series

NameFall Meeting of the Eastern States Section of the Combustion Institute 2009

Other

OtherFall Meeting of the Eastern States Section of the Combustion Institute 2009
CountryUnited States
CityCollege Park
Period10/18/0910/21/09

All Science Journal Classification (ASJC) codes

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

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  • Cite this

    Liu, W., Kelley, A. P., & Law, C. K. (2009). Flame propagation and counterflow nonpremixed ignition of mixtures of methane and ethylene. In Fall Meeting of the Eastern States Section of the Combustion Institute 2009 (pp. 293-300). (Fall Meeting of the Eastern States Section of the Combustion Institute 2009). Combustion Institute.