Laminar flame speeds and oxidation kinetics of tetrachloromethane

J. C. Leylegian, C. K. Law, H. Wang

Research output: Contribution to journalConference article

17 Scopus citations

Abstract

The laminar flame speeds of blends of tetrachloromethane (CCl4) with methane in air at room temperature and atmospheric pressure were experimentally determined using the counterflow twin-flame technique, varying both the amount of CCl4 in the fuel and the equivalence ratio of the unburned mixture. Flame speeds were measured for stoichiometric mixtures with CCl4-to-CH4 ratios between 0 and 0.429 by volume and for equivalence ratio ranges of 0.7-1.3 and 0.7-1.2 for CCl4-to-CH 4 ratios of 0.053 and 0.200, respectively. Comparison between the present experimental results and the previous data of CH3Cl-, CH 2Cl2-, and CHCl3-CH4-air flames demonstrates the dominant influence of the atomic Cl-to-H ratio on the propagation rate of laminar flames with chlorinated methane addition. A detailed kinetic model previously employed for CH3Cl, CH2Cl 2, and CHCl3 combustion was expanded to include additional pathways pertinent to tetrachloromethane combustion. Numerical simulation shows that this model predicts the laminar flame speeds reasonably well. Carbon flux and sensitivity analyses indicate that the oxidation kinetics of CH4 flames doped with CCl4 are essentially the same as those doped with other chloromethanes.

Original languageEnglish (US)
Pages (from-to)529-536
Number of pages8
JournalSymposium (International) on Combustion
Volume27
Issue number1
DOIs
StatePublished - Jan 1 1998
Event27th International Symposium on Combustion - Boulder, CO, United States
Duration: Aug 2 1998Aug 7 1998

All Science Journal Classification (ASJC) codes

  • Mechanical Engineering
  • Energy Engineering and Power Technology
  • Chemical Engineering(all)
  • Fluid Flow and Transfer Processes
  • Fuel Technology
  • Physical and Theoretical Chemistry

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