爆破器材2016,Vol.45Issue(2):11-15,5.DOI:10.3969/j.issn.1001-8352.2016.02.003
惰性介质对甲烷/空气预混气体爆炸极限的影响❋
Effect of Inert Gas to Gas Explosion Limits of Methane/Air Premixed
摘要
Abstract
[ ABSTRACT] Based on chemical equilibrium and Gibbs free energy, ChemKin numerical simulation software was applied and the critical temperature of 1 450 K was selected as a criterion whether the gas mixture is combustible or not, the impact of N2 and CO2 as an inert medium on the explosion limit of mixed gas was studied. The explosion limits of gas and air mixed gas within the explosion container 7L were measured to obtain the explosive limits of CH4 and CO2(or N2) mixed in different volume ratio. Results show that, when V(CH4)/V(CO2) =0. 294, the upper and lower explosion are coinci-ding, and when V(CH4)/V(CO2) is less than 0. 294, it would not be ignited in any ratio. And CO2 has stronger derived explosion suppression ability than N2 .关键词
爆炸力学/爆炸极限/绝热燃烧温度/CH4Key words
mechanics of explosion/flammability limit/adiabatic flame temperature/CH4分类
资源环境引用本文复制引用
曲忠伟,颜事龙,李学超..惰性介质对甲烷/空气预混气体爆炸极限的影响❋[J].爆破器材,2016,45(2):11-15,5.基金项目
安徽省自然科学基金资助项目(1508085ME85);安徽省自然科学基金资助项目(1508085QF140) (1508085ME85)