抄録
An algorithm to extract essential species and elementary reactions from a chemical kinetics mechanism and reduce reaction networks in the mechanism had been proposed by one of the authors. According to a main part of the algorithm, reaction networks of low-temperature oxidation in a detailed mechanism of n-heptane were investigated in the present study. Essential reactions for production/consumption of OH and heat release were extracted on worksheets of the Microsoft Excel. It was concluded that thermal ignition is caused by H_2O_2(+M)→2OH(+M) lasting from the end of cool-flame reaction to the ignition, and the endothermic reaction can be driven by an exothermic reaction loop involving HCO, HO_2 and CH_2O.
