EXPERIMENTS AND REACTION MODELS OF FUNDAMENTAL COMBUSTION PROPERTIES

Experimental, theoretical, and computational studies of various combustion phenomena were carried out for a wide range of conditions. The parameters that were considered include the fuel type, reactant composition, flame temperature, pressure, and combustion mode. Flames of H2, CO, as well as neat and mixtures of gaseous and liquid hydrocarbons, were studied experimentally in the counterflow configuration. The experimental data were used as the basis for developing and validating reaction and molecular transport models. During the reporting period, the following tasks were completed (numbers correspond to the archival publications that are shown in Section 7.0 of Technical Discussion): 1. development of a new non-linear extrapolation technique for the determination of laminar flame speeds [1]; 2. quantification of diffusion and kinetics effects on flame propagation and extinction in liquid hydrocarbon flames [2]; 3. quantification of the effect of fuel blending on the flame response [3,4]; 4. derivation of an extensive experimental flame database for C5-C12 n-alkane, cyclohexane, and mono-alkylated cyclohexane flames [1,5]; 5. fundamental kinetic studies of elementary reactions critical to a predictive combustion reaction model [6,7]; Report Documentation Page Form ApprovedOMB No. 0704-0188 Public reporting burden for the collection of information is estimated to average 1 hour per response, including the time for reviewing instructions, searching existing data sources, gathering and maintaining the data needed, and completing and reviewing the collection of information. Send comments regarding this burden estimate or any other aspect of this collection of information