TY - JOUR
T1 - High-temperature oxidation of ethanol. Part 1.-Ignition delays in shock waves
AU - Dunphy, Mary P.
AU - Simmie, John M.
PY - 1991
Y1 - 1991
N2 - The ignition characteristics of ethanol-oxygen mixtures have been studied behind reflected shock waves from 1080 to 1660 K, in the pressure range 1.8-4.6 bar and with equivalence ratios, φ, varying from 0.25 to 2, through measurements of the ignition delay times associated with pressure rise, τP, or light emission, τCO-O and τOH. Multiple regression analysis was applied to all the measured ignition delay times, τ in seconds, the reactant concentrations in mol cm-3, and the corresponding temperatures in K, yielding the global relations: τOH = 10-12.7 exp (+ 14780/T)[C2H5OH]-0.415[O2] -0.785[Ar]+0.648 τCO-O = 10-14.0 exp (+15550/T)[C2H5OH]-0.315[O2] -0.780[Ar]+0.259 τP = 10-14.0 exp(+ 16960/T)[C2H5OH]-0.130[O2] -0.784[Ar]+0.140 The regression analysis of variance indicated that the fitted equations are good predictors of the data in each case and regression of τP on τCO-O showed that they are experimentally indistinguishable.
AB - The ignition characteristics of ethanol-oxygen mixtures have been studied behind reflected shock waves from 1080 to 1660 K, in the pressure range 1.8-4.6 bar and with equivalence ratios, φ, varying from 0.25 to 2, through measurements of the ignition delay times associated with pressure rise, τP, or light emission, τCO-O and τOH. Multiple regression analysis was applied to all the measured ignition delay times, τ in seconds, the reactant concentrations in mol cm-3, and the corresponding temperatures in K, yielding the global relations: τOH = 10-12.7 exp (+ 14780/T)[C2H5OH]-0.415[O2] -0.785[Ar]+0.648 τCO-O = 10-14.0 exp (+15550/T)[C2H5OH]-0.315[O2] -0.780[Ar]+0.259 τP = 10-14.0 exp(+ 16960/T)[C2H5OH]-0.130[O2] -0.784[Ar]+0.140 The regression analysis of variance indicated that the fitted equations are good predictors of the data in each case and regression of τP on τCO-O showed that they are experimentally indistinguishable.
UR - http://www.scopus.com/inward/record.url?scp=4043054804&partnerID=8YFLogxK
U2 - 10.1039/FT9918701691
DO - 10.1039/FT9918701691
M3 - Article
SN - 0956-5000
VL - 87
SP - 1691
EP - 1696
JO - Journal of the Chemical Society - Faraday Transactions
JF - Journal of the Chemical Society - Faraday Transactions
IS - 11
ER -