Experimental and modeling study of the autoignition of cyclopentane

摘要

Ignition delay times of cyclopentene-oxygen-argon mixtures were measuredbehind reflected shock waves. Mixtures contained 0.5 or 1 % of hydrocarbons forequivalence ratios ranging from 0.5 to 1.5. Reflected shock waves conditionswere: temperatures from 1300 to 1700 K and pressures from 7 to 9 atm. Whencomparing to previous results obtained under similar conditions, it can beobserved that the reactivity of cyclopentene is much lower than that ofcyclohexene, but very close to that of cyclopentane. A kinetic mechanismrecently proposed for the combustion of cyclopentene in a flame has been usedto model these results and a satisfactory agreement has been obtained. The mainreaction pathways have been derived from flow rate, simulated temporal profilesof products and sensitivity analyses.