Experiments of nitrogen non-premixed suppression of gasoline-air mixture explosion

Zhang Peili; Du Yang

doi:10.11883/1001-1455(2016)03-0347-06

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Zhang Peili, Du Yang. Experiments of nitrogen non-premixed suppression of gasoline-air mixture explosion[J]. Explosion And Shock Waves, 2016, 36(3): 347-352. doi: 10.11883/1001-1455(2016)03-0347-06

Citation:

Zhang Peili, Du Yang. Experiments of nitrogen non-premixed suppression of gasoline-air mixture explosion[J]. Explosion And Shock Waves, 2016, 36(3): 347-352. doi: 10.11883/1001-1455(2016)03-0347-06

Zhang Peili, Du Yang. Experiments of nitrogen non-premixed suppression of gasoline-air mixture explosion[J]. Explosion And Shock Waves, 2016, 36(3): 347-352. doi: 10.11883/1001-1455(2016)03-0347-06

Citation:

Zhang Peili, Du Yang. Experiments of nitrogen non-premixed suppression of gasoline-air mixture explosion[J]. Explosion And Shock Waves, 2016, 36(3): 347-352. doi: 10.11883/1001-1455(2016)03-0347-06

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Experiments of nitrogen non-premixed suppression of gasoline-air mixture explosion

doi: 10.11883/1001-1455(2016)03-0347-06

Zhang Peili,
Du Yang^,

Department of Military Petroleum Supply Engineering, Logistical Engineering University of PLA, Chongqing 401311, China

Received Date: 2014-10-27
Rev Recd Date: 2015-03-23
Publish Date: 2016-05-25

Abstract

Abstract

We carried out experiments of suppressing the gasoline-air explosion by non-premixed nitrogen using the visualization experimental bench and a high-speed camera to take photos of the flame front extinction to capture the suppression process. Based on the analysis of the experimental data and high-speed taken photos, we examined the overpressure characteristics and the flame behavior of the suppression process. Results from our study show that the suppression by non-premixed nitrogen can significantly reduce the overpressure in the gasoline-air mixture explosion and its rise rate, and in the suppression process three phases are identified: sustained inertia, suppression/attenuation, and diffusion/extinction. The mechanism governing the suppression process is that nitrogen molecules participate in the chemical reaction as a third part and can then absorb energy from the high-energy free radicals so that the main reaction chains are changed to termination chains. The flame in the phase of the suppression/attenuation can be divided into the suppression/attenuation zone (where suppression and attenuation occur) and the core zone. In the phase of suppression and attenuation, the relationship between the flame speed and time can be described by a linear formula.
- mechanics of explosion,
- nitrogen non-premixed suppression,
- overpressure,
- gasoline-air mixture explosion,
- flame behavior,
- flame speed,
- visualization

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References(15)

References

[1]	Moore P E. Suppressants for the control of industrial explosions[J]. Journal of Loss Prevention in the Process Industries, 1996, 9(1):119-123. doi: 10.1016/0950-4230(95)00045-3
[2]	Thomas G O, Edwards M J, Edwards D H. Studies of detonation quenching by water sprays[J]. Combustion Science and Technology, 1990, 71:233-245. doi: 10.1080/00102209008951634
[3]	Liu Q, Hu Y, Bai C, et al.Methane/coal dust/air explosions and their suppression by solid particle suppressing agents in a large-scale experimental tube[J]. Journal of Loss Prevention in the Process Industries, 2013, 26(2):310-316. doi: 10.1016/j.jlp.2011.05.004
[4]	Catlin C. Passive explosion suppression by blast-induced atomisation from water containers[J]. Journal of Hazardous Materials, 2002, 94(2):103-132. doi: 10.1016/S0304-3894(02)00119-X
[5]	Nie B, He X, Zhang R, et al. The roles of foam ceramics in suppression of gas explosion overpressure and quenching of flame propagation[J]. Journal of Hazardous Materials, 2011, 192(2):741-747 doi: 10.1016/j.jhazmat.2011.05.083
[6]	Razus D, Brinzea V, Mitu M, et al. Inerting effect of the combustion products on the confined deflagration of liquefied petroleum gas-air mixtures[J]. Journal of Loss Prevention in the Process Industries, 2009, 22(4):463-468. doi: 10.1016/j.jlp.2009.03.002
[7]	李兴虎.氮气稀释丙烷空气混合气的层流火焰速度测量[J].燃烧科学与技术, 2001, 7(4):288-289. doi: 10.3321/j.issn:1006-8740.2001.04.018 Li Xinghu. Measurement of laminar burning velocity on diluted air-propane mixture[J]. Journal of Combustion Science and Technology, 2001, 7(4):288-289. doi: 10.3321/j.issn:1006-8740.2001.04.018
[8]	Molnarne M, Mizsey P, Schröder V. Flammability of gas mixtures: Part 2: Influence of inert gases[J]. Journal of Hazardous Materials, 2005, 21(1/2/3):45-49. http://cn.bing.com/academic/profile?id=5986ec5292b0eaacc299006ae1fb8116&encoded=0&v=paper_preview&mkt=zh-cn
[9]	Ko B C, Cheong K-H, Nam J-Y. Fire detection based on vision sensor and support vector machines[J]. Fire safety Journal, 2009, 44(3):322-329. doi: 10.1016/j.firesaf.2008.07.006
[10]	Liu C B, Ahuja N. Vision based fire detection[C]//Proceedings of the 17th International Conference on Pattern Recognition. Cambridge, UK, 2004, 4: 134-137. https://dl.acm.org/citation.cfm?id=1021180
[11]	Zhang P, Du Y, Zhou Y, et al. Explosions of gasoline-air mixture in the tunnels containing branch configuration[J]. Journal of Loss Prevention in the Process Industries, 2013, 26(6):1279-1284. doi: 10.1016/j.jlp.2013.07.003
[12]	Yang D, Li Z P, Hong O Y. Effects of humidity, temperature and slow oxidation reactions on the occurrence of gasoline-air explosions[J]. Journal of Fire Protection Engineering, 2013, 23(3):226-238. doi: 10.1177/1042391513486464
[13]	Du Y, Zhang P, Zhou Y, et al. Suppressions of gasoline-air mixture explosion by non-premixed nitrogen in a closed tunnel[J]. Journal of Loss Prevention in the Process Industries, 2014, 31:113-120. doi: 10.1016/j.jlp.2014.07.012
[14]	赵衡阳.气体和粉尘爆炸原理[M].北京:北京理工大学出版社, 1996:31.
[15]	Stephen R T. An introduction to combustion:concepts and application[M]. New York: The McGraw-Hill Companies, 2000:201.