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首页> 外文期刊>Optics and Lasers in Engineering >Temperature measurement of a premixed radially symmetric methane flame jet using the Mach-Zehnder Interferometry
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Temperature measurement of a premixed radially symmetric methane flame jet using the Mach-Zehnder Interferometry

机译：使用Mach-Zehnder干涉仪测量预混合径向对称甲烷火焰射流的温度

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摘要

The temperature field of a premixed methane symmetric laminar flame jet is visualized by studying the interferograms of the flame, using the Mach-Zehnder Interferometry. Two kinds of oxidizers are chosen for combustion: industrially pure oxygen and oxygen-enriched air. The flame is chosen to be both lean, and rich. For the lean oxygen-enriched combustion (OEC), the equivalence ratio was held constant at 0.5, and the oxygen enrichment was adjusted to 0.5 and 0.6, and for rich OEC, equivalence ratio is chosen to be 1.2 while the oxygen enrichment was 0.7 and 0.8. For methane/oxygen combustion, the equivalence ratio varied from 0.35 to 0.55 for the lean flame, and 1.3 and 1.7 for the rich flame. Attempt was made to keep the Reynolds number unchanged at 500, for OEC, and 1000, for methane/oxygen flame. In the present study a non-contact method is successfully developed to measure the temperature field of a premixed radially symmetric laminar methane flame jet. The effect of oxygen enrichment and equivalence ratio on temperature field is also investigated and depicted.
机译：通过使用Mach-Zehnder干涉测量法研究火焰的干涉图，可以看到预混甲烷对称层流火焰射流的温度场。选择两种氧化剂进行燃烧：工业纯氧和富氧空气。火焰被选择为既稀薄又浓郁。对于稀薄的富氧燃烧（OEC），当量比保持恒定，为0.5，氧的富集度分别调整为0.5和0.6；对于富油的OEC，当量比为1.2，而氧的富集度为0.7， 0.8。对于甲烷/氧气燃烧，稀燃火焰的当量比在0.35至0.55之间变化，而浓燃火焰的当量比在1.3和1.7之间变化。尝试将雷诺数保持不变（对于OEC）为500，对于甲烷/氧气火焰为1000。在本研究中，成功​​开发了一种非接触方法来测量预混合径向对称层流甲烷火焰射流的温度场。还研究和描绘了氧气富集和当量比对温度场的影响。

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