射频等离子体放电激发氧原子对大气压下部分预混合CH4/O2和H2/O2火焰流场的影响

2018/12/11   下载量： 3 次

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应用领域 能源/新能源
检测样本 其他
检测项目
参考标准 暂无

采用LaVision的ImagerIntense型CCD相机和NewWavePIV激光器对甲烷加氧气和氢气加氧气两种燃料混合物火焰流场进行了测量，并研究观察了高压高频放电对流场形态，燃烧形态的影响，分析了影响机理，并探讨了可能的应用。

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This study investigates the changes induced by plasma-excited oxygen, in the flow field of partially-premixed CH4
and H2 flames under atmospheric conditions. Excited singlet oxygen is known to promote the chain mechanism
reactions that control ignition and burning. Resulting modifications of the flame structure have been analyzed in
previous works [1, 2] by different spectroscopic methods. The results of these measurements showed that the flow
attaches closer to the burner surface and that the reaction zone becomes more concentrated toward the center of the
system, when activating the plasma discharge. All these observations indicate strong changes in flow and flame
topology induced by the plasma discharge. Therefore, additional velocity measurements have been carried out in this
work, in order to verify these qualitative observations. The results of these measurements support the earlier
presumption: when the plasma is on, the flow fields become more turbulent, higher velocities are observed and the
flow turns preferentially toward the center of the burner.

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北京欧兰科技发展有限公司
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