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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：H_2-O_2-Ar混合物加H_2S的反射冲击点火

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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：对于在Ar中稀释并接种了1600 ppm H_2S的1％H_2 / 1％O_2混合物，在1.6至33 atm的冲击管中测量了点火延迟时间。结果表明，H_2S的添加显着降低了H_2 / O_2混合物的反应性。在大约1.6 atm时，在所研究范围的低温侧，τ_（ign）大部分增加，而对于高于10 atm的压力，其影响在高温侧更为明显。然而，在所研究的最高压力下，在最低温度下观察到反应性增加。根据动力学模型的敏感性分析，在报告的误差因子内确定并修改了几个重要的反应，以更好地匹配数据。发现H_2S主要在H_2S + H（H）SH + H_2（r10）之前在H_2之前开始反应，并且抑制了支化反应H + O_2（↔）OH + O（r1），导致τ_（ign）增加）。

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