Chemical Kinetic Modeling of High-Pressure Propane Oxidation and Comparison to Experimental Results

摘要

A pressure-dependent kinetic mechanism for propane oxidation is develoed and comapred to experimental data from a high-pressure flow reactor. Experimental conditions range from 10-15 atm and 650 800 K and have a residence time of 198 ms for propane-air mixtures at an equivalence ratio of 0.4. The experimental results clearly indicate negative temperature coefficient (NTC) behavior. The chemistry describing this phenomenon is critical in understanding automotive engine knock and cool flame oscillations. Results of the numerical model are compared to a spectrum of stable species sampled from the flow reactor.