A reactive molecular dynamics study of the pyrolysis mechanism of C6F12O

Study on Ignition Delay and Reaction Mechanism of RP-3/Air Combustion Adding C6F12O

RP-3 jet fuel is the main fuel for aircraft in China, and it is also a source of fire. C₆F₁₂O (Novec 1230) has an outstanding fire extinguishing performance and minimal environmental impacts. In this study, the application of C₆F₁₂O in the inhibition of RP-3 jet fuel fire was considered, and the ignition delay time (IDT) of C₆F₁₂O/air and RP-3/air adding C₆F₁₂O was measured using a shock tube. In addition, the results showed that the IDT of C₆F₁₂O was 500-900 μs and less sensitive to temperature compared with those of common fuels in the range of 1150-1958 K, and the influence of C₆F₁₂O on the IDT of RP-3 jet fuel was influenced by many factors including temperature, the concentration of C₆F₁₂O, and the stoichiometric ratio of RP-3 jet fuel. According to the experimental results, the mechanism of C₆F₁₂O was verified and modified, and then integrated with the mechanisms of RP-3 jet fuel; the integrated mechanism can well predict the IDT of C₆F₁₂O/air and RP-3/air adding C₆F₁₂O. This work provides a good basis for the chemical kinetics analysis of the inhibition of RP-3 jet fuel combustion by C₆F₁₂O.