High-pressure ethylene oxidation behind reflected shock waves
OG Penyazkov, KL Sevrouk, V Tangirala… - Proceedings of the …, 2009 - Elsevier
OG Penyazkov, KL Sevrouk, V Tangirala, N Joshi
Proceedings of the Combustion Institute, 2009•ElsevierOxidation of ethylene/air mixtures has been investigated behind reflected shock waves in a
shock tube of 76mm in diameter. Experiments were performed within the temperature range
of 1060–1520K, pressures of 5.9–16.5 atm, and stoichiometries of ϕ= 0.5, 1.0, and 2.0.
Emissions of OH (308.9 nm), CH (431.5 nm) and C2 (516.5 nm) molecules, pressures and
ion current records were implemented to measure ignition times of the mixture along the
centreline of the tube and in the boundary layer. Empirical correlations for ethylene ignition …
shock tube of 76mm in diameter. Experiments were performed within the temperature range
of 1060–1520K, pressures of 5.9–16.5 atm, and stoichiometries of ϕ= 0.5, 1.0, and 2.0.
Emissions of OH (308.9 nm), CH (431.5 nm) and C2 (516.5 nm) molecules, pressures and
ion current records were implemented to measure ignition times of the mixture along the
centreline of the tube and in the boundary layer. Empirical correlations for ethylene ignition …
Oxidation of ethylene/air mixtures has been investigated behind reflected shock waves in a shock tube of 76mm in diameter. Experiments were performed within the temperature range of 1060–1520K, pressures of 5.9–16.5atm, and stoichiometries of ϕ=0.5, 1.0, and 2.0. Emissions of OH (308.9nm), CH (431.5nm) and C2 (516.5nm) molecules, pressures and ion current records were implemented to measure ignition times of the mixture along the centreline of the tube and in the boundary layer. Empirical correlations for ethylene ignition times have been deduced from the experimental data. Auto-ignition modes (strong, transient and weak) and ignition limits of the mixtures were identified comparing velocities of reflected shock wave and reaction front at different locations from the reflecting wall. Extensive database for validations of high-temperature ethylene reaction mechanism and numerical methods for reaction flow simulations has been obtained from experimental observations.
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