华电技术 ›› 2017, Vol. 39 ›› Issue (12): 59-61.

• 节能与环保 • 上一篇    下一篇

H2O对合成气火焰燃烧特性的影响

  

  1. 中国华电集团公司,北京〓100031
  • 出版日期:2017-12-25 发布日期:2018-01-10

The effect of H2O on the combustion characteristics in syngas flame

  1. China Huadian Corporation, Beijing 100031, China
  • Online:2017-12-25 Published:2018-01-10

摘要:

使用Chemkin软件对CO/H2合成气在O2/N2/H2O气氛下预混火焰的火焰传播速度和着火延迟时间进行数值模拟。模拟选用GRI-Mech 3.0反应机理。模拟结果表明,H2O的性质尤其是化学性质对燃烧特性有重要影响。在低H2含量时,H2O的化学性质提高火焰传播速度,降低着火延迟时间。在高H2含量合成气燃烧中,H2O的化学性质会降低火焰传播速度以及着火延迟时间。

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Abstract:

A numerical study has been conducted to investigate the effects of H2O on flame propagation speeds and ignition delay times in syngas flame by Chemkin with GRIMech 3.0.The results show that the property especially chemical property of H2O has a significant influence on the combustion characteristics. When H2 concentration is low, the chemical property of H2O increases flame propagation speeds and ignition delay times; When H2 concentration is high, the chemical property of H2O decreases flame propagation speeds and increases ignition delay times.

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