热力学第二定律在确定可燃气体爆炸极限中的应用

Application of the Second Law of Thermodynamics in Explosive Limit of Flammable Gas

本文从热力学第二定律出发,分析了可燃气体的爆炸过程,借助孤立熵增原理,建立了单组分气体爆炸极限的计算公式,进行了实例验算,对计算结果的普适性和精确度进行了分析评价,从而为可燃气体的爆炸极限计算提供了科学的定量依据。

The explosion process of flammable gas was researched in this paper, according to the second law of thermodynamics and principle of isolated system entropy increase.Calculation formula of one-component gas explosion limit was set up and checked with the practical example. Analysis and appraise about the generality and precision of the result about the calculation provided scientific basis for computation of explosive limit about flammable gas.