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首页> 外文会议>International Symposium on Shock Waves >Reflected-Shock Ignition of H_2-O_2-Ar Mixtures with Addition of H_2S
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Reflected-Shock Ignition of H_2-O_2-Ar Mixtures with Addition of H_2S

机译：通过添加H_2S的H_2-O_2-AR混合物的反射震动点火

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Ignition delay times were measured in a shock tube between 1.6 and 33 atm for mixtures of 1% H_2/1% O_2 diluted in Ar and seeded with 1600 ppm of H_2S. Results showed that the addition of H_2S significantly decreases the reactivity of H_2/O_2 mixtures. At around 1.6 atm, τ_(ign) is mostly increased on the low-temperature side of the range investigated, whereas the effect is more prominent on the high-temperature side for pressures above 10 atm. At the highest pressure investigated, however, an increase in the reactivity was observed for the lowest temperature. Based on a sensitivity analysis of the kinetics model, several important reactions were identified and modified within their reported error factors to better match the data. It was found that H_2S starts reacting before H_2, mostly through H_2S+H (?) SH + H_2 (r10), and inhibits the branching reaction H + O_2 (?) OH + O (r1) leading to an increase in τ_(ign).
机译：点火延迟时间在1.6和33 atm之间的冲击管中测量，用于在Ar中稀释的1％H_2 / 1％O_2的混合物，并用1600ppm的H_2s接种。结果表明，加入H_2S显着降低了H_2 / O_2混合物的反应性。在1.6 ATM中，τ_（IGN）大多数在调查范围的低温侧增加，而在高于10atm以上的高温侧的效果更突出。然而，在研究的最高压力下，对于最低温度观察到反应性的增加。基于动力学模型的敏感性分析，在其报告的误差因素内确定并修改了几个重要反应，以更好地匹配数据。发现H_2S在H_2之前开始反应，主要是通过H_2S + H（α）SH + H_2（R10），并抑制分支反应H + O_2（α）OH + O（R1），导致τ_的增加（IGN ）。

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