Experimental study of different size n-heptane pool fire behavior under low pressure
DOI:
https://doi.org/10.33408/2519-237X.2017.1-4.414Keywords:
high plateau, oil pool fire, burning rate, plume temperature, thermal radiationAbstract
To analyze the high plateau affected by the difference of air pressure, such as flame temperature, mass burning rate and radiation flux have a great difference in every burning stage compared to the oil pool fires in plain region. The experiments were conducted in High plateau air laboratory with different oil pool diameters. Heat release rate, burning rate and flame temperature field distribution and flame radiation heat flux were recorded and analyzed in these experiments. The relationship between oil pool size and mass burning rate was deduced, and which was found that the mass burning varies linearly with oil pool size. Was found that implementing the classical theory assessment the flame temperature cannot correctly predict temperature rise for the influence of low pressure and low oxygen concentration. Analysis also shows that the bigger oil pool area, the greater the radiation fluxes. By the curve fitting method, the relationship between the oil pool size and the heat radiation flux was also obtained.
References
The civil aviation administration of China flight standards department. Air carrier plateau airport operation management rules. 2007-03-02.
Wieser D., Jauch P., Wiui U., et al. The influence of high altitude on fire detector test. Fire Safety Journal, 1997, 29(2). Pp. 195-204.
Fang Jun, Chun Yuyu, Tu Ran, et al. The influence of low atmospheric pressure on carbon monoxide of n-heptane pool fire. Journal of Hazardous Materials, 2008. 154(1). Pp. 476-483.
Fang Jun, Tu Ran, Guan Jinfu, et al. Influence of low air pressure on combustion characteristics and flame pulsation frequency of pool fires. Fuel, 2011. Vol. 90. No.8. Pp. 2760-2766.
Li Zhenhua, He Yaping, Zhang Hui, et al. Combustion characteristics of n-heptane and wood crib fires at different altitudes. Proceedings of the Combustion Institute, 2009. 32(2). Pp. 2481-2488.
Hu Xiaokang, He Yaping, Li Zhenhua, et al. Combustion characteristics of n-heptane at high altitudes. Proceedings of the Combustion Institute, 2011. Vol. 33. No. 2. Pp. 2607-2615.
Hu Xiaokang. Experimental Research on the combustion and smoke characteristics of Circle-Pan fire at high altitude [D]. Hefei: University of science and technology of China, 2012.
Zhou Zhihui, Wei Yao, Li Haihang, et al. Experimental analysis of low air pressure influences on fire plumes. International Journal of Heat and Mass Transfer, 2014. Vol. 70. No. 2. Pp. 578-585.
Zhou Zhihui. Effects of low ambient pressure on pool fire behavior and plume characteristics. Hefei: University of science and technology of China, 2014.
Babrauskas V. Estimating large pool fire burning rates. Fire Technology, 1983. Vol. 19. No. 4. Pp. 251-261.
Tu Ran, Lei Jiao, Wang Yan, et al. Small scale pool fire burning rate under reduced atmospheric pressure using pressure modeling. Journal of Combustion Science and Technology, 2011. Vol. 16. No. 5. Pp. 467-471.
Mccaffrey B. Purely buoyant diffusion flames: some experimental results. Washington DC: National Bureau of Standards, 1979. 37 p.
Hao Jianbin. Combustion and explosion. Beijing: China Petrochemical press, 2012. Pp. 116-117.
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Copyright (c) 2017 Dzhan V., Vey V., Ruy Ya.
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