Study on Ignition Delay and Reaction Mechanism of RP-3/Air Combustion Adding C6F12O
Binbin Yu1,2, Xinsheng Jiang1, Changhua Zhang3
1Petroleum, Oil & Lubricants Department, Army Logistics Academy, Chongqing 401331, China.
Abstract:
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.
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