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首页> 外文期刊>International journal of hydrogen energy >Vibrational nonequilibrium and reaction heat effect in diluted hydrogen-oxygen mixtures behind reflected shock waves at 1000 < T < 1300 K
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Vibrational nonequilibrium and reaction heat effect in diluted hydrogen-oxygen mixtures behind reflected shock waves at 1000 < T < 1300 K

机译：1000

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摘要

Vibrationally nonequilibrium model of kinetics in the reacting mixture H-2 + O-2 + Ar behind the reflected shock wave is formulated as a non-isothermal process occurring adiabatically at a constant volume. The model takes into account the vibrational nonequilibrium for the starting (primary) H-2 and O-2 molecules, as well as the molecular intermediates HO2, OH, O-2((1)Delta), and the main reaction product H2O. Calculation results that simulate experimental data on the ignition induction time measurements in the hydrogen oxygen mixtures behind reflected shock waves by the methods of absorption spectroscopy (monitoring the OH((2)Pi) radical) and emission spectroscopy (monitoring the OH*((2)Sigma(+)) radical) at temperatures of 1000 < T < 1300 K and pressures p < 3 atm are compared with experimental data and analyzed. It has been shown that the vibrational nonequilibrium determines the mechanism and rate of the process as a whole. The self-heating effect in diluted reacting mixtures at concentrations of the reacting additive <= 5% is demonstrated and discussed. (C) 2019 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.
机译：反射冲击波后面的反应混合物H-2 + O-2 + Ar中的动力学非平衡振动模型被公式化为非等温过程，绝热过程以恒定体积进行。该模型考虑了起始（主要）H-2和O-2分子以及分子中间体HO2，OH，O-2（（1）Delta）和主要反应产物H2O的振动非平衡。计算结果模拟了通过吸收光谱法（监测OH（（2）Pi）自由基）和发射光谱法（监测OH *（（2 ）（Sigma（+））自由基）在1000

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