TY - JOUR
T1 - The ignition and oxidation of allene and propyne
T2 - Experiments and kinetic modeling
AU - Curran, Henry
AU - Simmie, John M.
AU - Dagaut, Philippe
AU - Voisin, David
AU - Cathonnet, Michel
PY - 1996
Y1 - 1996
N2 - The ignition and oxidation of allene and propyne have been studied in a single-pulse shock tube under reflected shock wave conditions and in a jet-stirred reactor (JSR). These experiments cover a wide range of conditions: 1-10 atm, 0.5≤≤2.0 and 800-2030 K. The ignition delays of allene and propyne measured in a shock tube have been used to propose an overall representation for the dependence of ignition-delay time on the concentrations of the components in gas mixtures: τ(allene)=10-14.6 exp(18,150/T) [allene]0.1 [O2]-1.16 [Ar]0.1 and τ(propyne)=10-14.3 exp(17,910/T) [propyne]0.16 [O2]-1.14 [Ar]0.07 (units; s, mol/dm3, K). These results show that allene and propyne have almost identical ignition characteristics. The power dependencies, preexponential factors, and activation energies are very similar for both fuels. Concentration profiles of reactants, intermediates, and products of the oxidation of allene and propyne were measured in a JSR. A numerical model consisting of a detailed kinetic reaction mechanism with 748 reactions (mostly reversible) involving 121 species describes allene and propyne ignition in shock waves and oxidation in a jet-stirred reactor. Generally, a good agreement between the data and model was observed.
AB - The ignition and oxidation of allene and propyne have been studied in a single-pulse shock tube under reflected shock wave conditions and in a jet-stirred reactor (JSR). These experiments cover a wide range of conditions: 1-10 atm, 0.5≤≤2.0 and 800-2030 K. The ignition delays of allene and propyne measured in a shock tube have been used to propose an overall representation for the dependence of ignition-delay time on the concentrations of the components in gas mixtures: τ(allene)=10-14.6 exp(18,150/T) [allene]0.1 [O2]-1.16 [Ar]0.1 and τ(propyne)=10-14.3 exp(17,910/T) [propyne]0.16 [O2]-1.14 [Ar]0.07 (units; s, mol/dm3, K). These results show that allene and propyne have almost identical ignition characteristics. The power dependencies, preexponential factors, and activation energies are very similar for both fuels. Concentration profiles of reactants, intermediates, and products of the oxidation of allene and propyne were measured in a JSR. A numerical model consisting of a detailed kinetic reaction mechanism with 748 reactions (mostly reversible) involving 121 species describes allene and propyne ignition in shock waves and oxidation in a jet-stirred reactor. Generally, a good agreement between the data and model was observed.
UR - https://www.scopus.com/pages/publications/0030370440
U2 - 10.1016/S0082-0784(96)80267-0
DO - 10.1016/S0082-0784(96)80267-0
M3 - Article
SN - 0082-0784
VL - 26
SP - 613
EP - 620
JO - Symposium (International) on Combustion
JF - Symposium (International) on Combustion
IS - 1
ER -