Study on jet fuel explosion characteristics in different volume containers

doi:10.16265/j.cnki.issn1003-3033.2022.10.2588

Abstract

Abstract:

In order to provide theoretical support for the safe storage， transportation and use level of jet fuel， the variation characteristics of explosion pressure， pressure rise rate， temperature and flame propagation velocity of jet fuel with different mass concentrations in different volume pressure containers were studied experimentally， and the change process of flame structure of jet fuel was simulated by CFD（Computational Fluid Dynamics）explosion simulation software. The effects of container volume and fuel mass concentration on the combustion and explosion characteristics were analyzed. The results show that in the confined space， the explosion parameters of jet fuel first increase and then decrease with the increase of mass concentration， and the fuel mass concentration of the maximum explosion hazard is 104.17 g/m³. At the same time， the pressure generated by the detonation of jet fuel is equal everywhere， and in an equal proportion containers， when the chemical equivalence ratio is close to 1， the maximum flame propagation speed and maximum deflagration pressure of jet fuel are basically not affected by the container volume， but the maximum average pressure rise rate caused by the detonation of jet fuel is inversely proportional to the container size. In the same time， the larger the detonation space， the higher the internal temperature.

Key words: container volume, jet fuel, explosion characteristics, fuel mass concentration, confined space

DONG Zhangqiang, WANG Yawei, LIU Lijuan, CHEN Xianfeng, YANG Manjiang. Study on jet fuel explosion characteristics in different volume containers[J]. China Safety Science Journal, 2022, 32(10): 148-153.

Figures/Tables 10

Tab.1

Fig.1

Fig.2

Tab.2

Fig.3

Fig.4

Fig.5

Fig.6

Fig.7

Fig.8

References 16

[1]	ZHANG Chi, HUI Xin, LIN Yuzhen, et al. Recent development in studies of alternative jet fuel combustion: progress, challenges, and opportunities[J]. Renewable and Sustainable Energy Reviews, 2016, 54:120-138. doi: 10.1016/j.rser.2015.09.056
[2]	FAN W P, GAO Y, ZHANG Y M, et al. Experimental studies and modeling on flame velocity in turbulent deflagration in an open tube[J]. Process Safety and Environmental Protection, 2019, 129:291-307. doi: 10.1016/j.psep.2019.07.013
[3]	HUANG Chuyuan, CHEN Xianfeng, LIU Lijuan, et al. The influence of opening shape of obstacles on explosion characteristics of premixed methane-air with concentration gradients[J]. Process Safety and Environmental Protection, 2021, 150:305-313. doi: 10.1016/j.psep.2021.04.028
[4]	王文和, 肖丰, 万琳, 等. 大型飞机库内航空煤油泄漏蒸发扩散特征研究[J]. 中国安全科学学报, 2020, 30(9):88-95.
	WANG Wenhe, XIAO Feng, WAN Lin, et al. Study on characteristics of evaporation and diffusion of kerosene leakage in large aircraft hangar[J]. China Safety Science Journal, 2020, 30(9):88-95.
[5]	王一, 李佳奇, 多英全, 等. 基于CFD的油品泄漏扩散过程的数值模拟[J]. 北京化工大学学报:自然科学版, 2020, 47(3):30-35.
	WANG Yi, LI Jiaqi, DUO Yingquan, et al. Numerical simulation of oil leakage and spreading processes based on CFD[J]. Journal of Beijing University of Chemical Technology:Natural Science, 2020, 47(3):30-35.
[6]	LIU Xueling, WANG Yue, ZHANG Qi. A study of the explosion parameters of vapor-liquid two-phase JP-10/air mixtures[J]. Fuel, 2016, 165:279-288. doi: 10.1016/j.fuel.2015.10.081
[7]	LEI Zheng, LU Changbo, AN Gaojun, et al. Comparative study on combustion and explosion characteristics of high flash point jet fuel[J]. Procedia Engineering, 2014, 84:377-383. doi: 10.1016/j.proeng.2014.10.447
[8]	尤祖明, 王永旭, 张莹, 等. JP-10燃料燃爆特性及无约束爆炸状态场参数试验研究[J]. 爆破器材, 2020, 49(3):49-52.
	YOU Zuming, WANG Yongxu, ZHANG Ying, et al. Experimental study on explosion characteristics and unconfined blast parameters of JP-10 fuel[J]. Explosive Materials, 2020, 49(3):49-52.
[9]	ZHANG Sihong, ZHANG Qi. Influence of geometrical shapes on unconfined vapor cloud explosion[J]. Journal of Loss Prevention in the Process Industries, 2018, 52:29-39. doi: 10.1016/j.jlp.2018.01.004
[10]	ZHANG Peili, WANG Jian, LIANG Jianjun, et al. Explosions of gasoline vapor/air mixture in closed vessels with different shapes and sizes[J]. Journal of Loss Prevention in the Process Industries, 2019, 57:327-334. doi: 10.1016/j.jlp.2018.12.010
[11]	MITU M, GIURCAN V, RAZUS D, et al. Influence of initial pressure and vessel's geometry on deflagration of stoichiometric methane-air mixture in small-scale closed vessels[J]. Energy Fuels, 2020, 34(3):3828-3835. doi: 10.1021/acs.energyfuels.9b04450
[12]	QI Sheng, DU Yang, ZHANG Peili, et al. Effects of concentration, temperature, humidity, and nitrogen inert dilution on the gasoline vapor explosion[J]. Journal of Hazardous Materials, 2017, 323:593-601. doi: S0304-3894(16)30595-7 pmid: 27816376
[13]	李俊, 鲁长波, 安高军, 等. 高闪点喷气燃料最小点火能试验研究[J]. 消防科学与技术, 2016, 35(11):1521-1524.
	LI Jun, LU Changbo, AN Gaojun, et al. Experimental study on the minimum ignition energy of high flashpoint jet fuel[J]. Fire Science and Technology, 2016, 35(11):1521-1524.
[14]	ZHANG Peili, LIANG Jianjun, WANG Jian. Equivalent analysis of the explosion overpressure of gasoline vapor-air mixture by using isooctane equivalence ratio[J]. Journal of Thermal Analysis and Calorimetry, 2019, 137:1775-1781. doi: 10.1007/s10973-019-08100-3
[15]	王志荣, 孙培培, 唐振华, 等. 密闭容器甲烷-空气混合物爆炸的尺寸效应[J]. 中国安全科学学报, 2021, 31(1):60-66. doi: 10.16265/j.cnki.issn 1003-3033.2021.01.009
	WANG Zhirong, SUN Peipei, TANG Zhenhua, et al. Size effect of methane-air mixture explosion in closed vessel[J]. China Safety Science Journal, 2021, 31(1):60-66. doi: 10.16265/j.cnki.issn 1003-3033.2021.01.009
[16]	肖丹. 受限空间瓦斯爆炸特性及其影响因素研究[D]. 阜新: 辽宁工程技术大学, 2007.
	XIAO Dan. Research on characteristics and influence factors of gas explosion in the limited space[D]. Fuxin: Liaoning Technical University, 2017.

理化性质参数	参数值
闭杯闪点/℃	74
密度（20 ℃）/（kg·m^-3）	815
总热值/（MJ·kg^-1）	44.97
净热值/（MJ·kg^-1）	42.95
运动黏度（20 ℃）/（mm²·s^-1）	5.87
十六烷值	38

试验类别	容器注入油量/g		当量比	质量浓度/ （g·m^-3）
试验类别	1 m³	8.9 m³	当量比	质量浓度/ （g·m^-3）
测试试验	100	—	1.01	83.33
测试试验	150	—	1.53	125.00
正式试验	40	300	0.41	29.17
	75	556	0.77	62.50
	100	742	1.01	83.33
	125	927	1.28	104.17
	150	1112	1.53	125.00