Effects of water on reaction kinetic for gas explosion in shock tube

被引：0

作者：

Wang, Lian-Cong ^{[1
]}

Luo, Hai-Zhu ^{[1
]}

Liang, Yun-Tao ^{[1
]}

机构：

[1] State Key Laboratory of Coal Mine Safety Technology, CCTEG Shenyang Research Institute, Shenyang

来源：

Meitan Xuebao/Journal of the China Coal Society | 2014年 / 39卷 / 10期

关键词：

Explosion mechanics; Gas explosion; Reaction kinetics characteristic; Shock tube;

D O I：

10.13225/j.cnki.jccs.2013.1383

中图分类号：

学科分类号：

摘要：

In order to study the effects of water on reaction kinetic for gas explosion in shock tube, by using numerical analysis method of reaction kinetics, a mathematical model was built for the shock wave-induced gas explosion. And the model was used to have numerical simulations and contrastive analyses to the effects of H2O on the variation tendencies of explosion temperature, shock wave velocity, mole fractions of reactants, radicals and main catastrophic gases. The results show that: in certain scope, along with initial gaseous mixture in H2O elevation, explosion temperature, shock wave velocity, and the mole fractions of O radical/H radical/CO/NO/NO2 decrease successively; on the contrary, the mole fractions of CO2 increase in turn. That is to say, within a certain range, with the H2O increasing, the gas explosion intension decreasing, the resultant of CO2 being promoted, the resultants of CO/NO/NO2 being inhibited, and the inhibiting effects to the H radical and O radical are more obvious especially. ©, 2014, China Coal Society. All right reserved.

引用

页码：2037 / 2041

页数：4

共 15 条

[1]

Jing G., Qiao K., Wang Z., Et al., The fireball effect of injury in gas explosion, Industrial Safety and Environmental Protection, 35, 3, pp. 37-38, (2009)

[2]

Zhang Y., Production and environmental protection in coal mines, Sichuan Environment, 16, 2, pp. 60-62, (1997)

[3]

Ding G., Theoretical analysis and calculation of methane gas explosion in coal gangway, Journal of China University of Mining and Technology, 29, 1, pp. 37-40, (2000)

[4]

Rodat S., Abanades S., Coulie J., Et al., Kinetic modelling of methane decomposition in a tubular solar reactor, Chemical Engineering Journal, 146, 1, pp. 120-127, (2009)

[5]

Jia Z., Li X., Yang S., Research and development of coal mine gas explosion propagation regularity, Mining Safety and Environmental Protection, 35, 6, pp. 73-75, (2008)

[6]

Lu F.K., Ortiz A.A., Li J.M., Et al., Detection of shock and detonation wave propagation by cross correlation, Mechanical Systems and Signal Processing, 23, 4, pp. 1098-1111, (2009)

[7]

Liu X., Chen H., Theoretical study on the effects of initial pressure on methane explosion in coal mine, Mining and Metallurgy, 15, 1, pp. 5-9, (2006)

[8]

Essen V.M., Sepman A.V., Mokhov A.V., Et al., Pressure dependence of NO formation in laminar fuel-rich premixed CH<sub>4</sub>/air flames, Combustion and Flame, 153, 3, pp. 434-441, (2008)

[9]

Mitchell R.E., Kee R.J., Shock: A general purpose computer code for predicting chemical kinetic behavior behind incident and reflected shocks, (1998)

[10]

Gregory P., Smith D.G., Gri-mech 3.0

← 1 2 →