342 / 2018-05-28 15:40:34

Numerical analysis of the influence of other combustible gases on the explosion characteristics of methane at constant volume, atmospheric pressure and high temperature

combustible gas volume fraction； initial temperature, maximum explosion temperature； maximum explosion pressure

矿山职业健康与环境安全 > 防爆炸

• Abstract: As one of the major coal mine disaster ,the sudden explosion of methane causes a lot of casualties and property loss .In this paper ,through Flacs software simulation study the volume fraction of C2H4,C2H6,H2 and coin five kinds of initial temperature (25℃ 60℃ 100℃ 140℃ 180℃ ) have different effects on the maximum explosion pressure and the temperature of methane. Study Show:At constant volume and room temperature,the maximum explosion temperature of methane increases with the increase of initial temperature, while the maximum explosion pressure decreases. In a positive oxygen balance, the maximum explosion pressure and temperature with the combustible gas volume fraction increases, while under the negative oxygen the balance is opposite