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基于链锁分支爆炸理论 ,研究封闭空间H2 O2 化学计量混气系的着火现象·建立由自由基基元反应动力学关系、反应速率定律和能量守恒定律决定的过程数学描述 ,用Gear算法求解具有“刚性”特征的常微分方程组·计算得到包括对过程起决定作用的自由基中间物种和反应生成物浓度以及系统温度的变化规律 ,在P T坐标面上扫描获得了与经典实验结果完全一致的着火界限曲线·针对传统热力理论的缺陷 ,对着火界限曲线的“半岛”现象和三个爆炸极限的存在给出理论证明·
Based on the theory of chain-branch explosion, the ignition phenomenon of H2 O2 stoichiometry mixed gas mixture in a closed space was studied. The process mathematical description, which was determined by the kinetics of free radical reaction, the law of reaction rate and the law of conservation of energy, was established. “Ordinary Differential Equations with” Rigid “Characteristics · The variation of concentration of species and reaction products, including the intermediates of free radicals, and the temperature of the system, which have played a decisive role in the process, was calculated. The results of the experiments on the PT coordinate surface were exactly the same Ignition Limit Curves Aiming at the defects of the traditional thermodynamic theory, the theory of ”peninsula" on the fire limit curve and the existence of three explosive limits is given.