| Citation: | LIU Guannan, FENG Shiyu, WANG Liqun, et al. Influence of aviation fuel flash point on fuel tank flammability exposure time[J]. Journal of Aerospace Power, 2023, 38（8）：1995-2000 doi: 10.13224/j.cnki.jasp.20210554
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Based on the airworthiness conformity assessment needs of domestic civil aircraft, the development and changes of airworthiness regulations of FAR25.981 revised by FAA were studied, and the fuel flash point temperature ranges at home and abroad were investigated. Through monte Carlo flammability exposure analysis program, the impact of the average flash point and range changes on fuel tank flammability exposure rate was obtained. Results showed that the larger average flash point temperature value indicated the wider standard deviation range, and the larger flammability exposure rate of fuel tank. Under the same conditions, the flammability exposure rate of aircraft using RP-3 fuel was higher than that of Jet A fuel. Therefore, the impact of fuel differences on flammability should be fully considered in the airworthiness certification process of aircraft in China, and the airworthiness application standards and specifications suitable for China’s national conditions should be improved.
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