A kind of combustion reaction mechanism of surrogate fuel was developed

including 65% n-decane

10% toluene and 25% propyl cyclohexane for RP-3 kerosene. The mechanism consisted of 150 species and 591 elementary reactions. The ignition and combustion characteristics of surrogate fuel at various conditions were simulated by this reaction mechanism

and the simulation results were compared with those of another one-component surrogate fuel (n-decane) and the experimental data

respectively. Results show that the chemical reaction mechanism of three-component surrogate fuel can accurately calculate the ignition and combustion characteristics of RP-3 kerosene. The calculation deviation of the ignition delay time can be controlled within 5%

and the calculation error of the laminar burning velocity can be controlled within 10%

better than those of n-decane. The combustion reaction mechanism of three-component surrogate fuel was also modified by sensitivity analysis

showing that the calculation error of the laminar burning velocity was improved from 10% to 5%. This means the modified mechanism can predict the ignition delay time and laminar burning velocity of RP-3 kerosene better.