瓦斯膨胀能计算方法的热力学分析  

Thermodynamic Analysis of Gas Expansion Energy Calculation Method

作　　者：张浩 高建宁 崔永杰 

机构地区：[1]煤科集团沈阳研究院有限公司,辽宁抚顺113122 [2]北京煤矿安全监察局,北京063000

出　　处：《煤矿安全》2015年第3期145-148,共4页Safety in Coal Mines

基　　金：国家自然科学基金资助项目(41262006)

摘　　要：将突出过程中的能量变化分为3个阶段,指出突出发生后对环境影响最大的是抛出功与气流冲击功,这些功属于瓦斯膨胀能的一部分,可以通过瓦斯膨胀能进行估算。然后对现有的瓦斯膨胀能计算公式进行了分析,指出现有的瓦斯膨胀能计算公式忽视了煤壁瓦斯的涌出的影响,计算出的结果包含了能量的耗散部分。最后提出了通过假定热力学过程来估算瓦斯膨胀能的方法,并通过计算进行了分析。The energy change in the course of outburst is divided into three stages,it is pointed out that the greatest effect on environment is throwing power and airflow impact energy after outburst,and these energy are the parts of gas expansion energy which can be estimated by gas expansion energy. Then the existing calculation formulas of gas expansion energy were analyzed,the impact of coal wall gas emission is ignored for the existing calculation formula,and the calculated results include the parts of the dissipation energy.Finally,the method is put forward that the gas expansion energy is estimated by the assuming thermodynamic process and it is analyzed by calculating.

关 键 词：瓦斯膨胀能 计算方法 热力学 抛出功 气流冲击功 

分 类 号：TD712[矿业工程—矿井通风与安全]