Kinetics of Oxidation and Combustion of Complex Hydrocarbon Fuels: Aviation Kerosene

摘要

A kinetic model of ignition and combustion of heavy n-alkanes (n-C_(10)H_(22) and n-C_(12)H_926)), benzene, and aviation kerosene fuel Jet-A, which is modeled by a BD surrogate consisting of n-decane (80%) and benzene (20%), is developed. The model is tested through comparisons with a large set of experimental data on the ignition delay time in both high-temperature (T >1000 K) and low-temperature (T = 650-950 K) ranges and also on the behavior of species concentrations during benzene oxidation in a flow reactor and during benzene combustion in a special burner. Other reaction mechanisms developed for the description of combustion of various surrogates modeling kerosene are briefly analyzed. It is demonstrated that the proposed model ensures a more adequate description of the measured ignition delay times than other known kinetic models, especially in the low-temperature range (T = 650-950 K). Specific features of the kinetics of low-temperature oxidation of the BD surrogate are analyzed.