| 氧质量分数对高温空气下火焰氮氧化物生成影响 |
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| 引用本文： | 冯耀勋,郑晓峰,贾明生.氧质量分数对高温空气下火焰氮氧化物生成影响[J].工业加热,2011,40(1):11-15. |
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| 作者姓名： | 冯耀勋 郑晓峰 贾明生 |
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| 作者单位： | 广东海洋大学工程学院,广东,湛江,524088 |
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| 基金项目： | 广东海洋大学自然科学基金 |
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| 摘 要： | 揭示高温空气燃烧过程中的火焰结构和氮氧化物生成机理.以对向流扩散火焰为对象,利用基于详细基元反应动力学模型的燃烧数值解析方法研究了氧质量分数对高温空气(温度为1 300 K)/甲烷扩散火焰火焰结构和氮氧化物生成的影响.结果表明,随着氧质量分数的逐渐减小,火焰结构和NO的生成机理发生显著变化,扩散火焰的NO生成主要由热力...
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| 关 键 词： | 高温空气燃烧 氧质量分数 氮氧化物 数值分析 |
Effects of Oxygen Concentration on the Flame and Nox Formation in High Temperature Diffusion Flame |
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| FENG Yao-xun,ZHENG Xiao-feng,JIA Ming-sheng.Effects of Oxygen Concentration on the Flame and Nox Formation in High Temperature Diffusion Flame[J].Industrial Heating,2011,40(1):11-15. |
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| Authors: | FENG Yao-xun ZHENG Xiao-feng JIA Ming-sheng |
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| Affiliation: | (Engineering College, Guangdong Ocean University, Zhanjiang 524088, China) |
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| Abstract: | The methane/high temperature air （1 300 K） counterflow diffusion flame was analysed numerically by detail chemical kinetics model. The effects of oxygen concentration on the flame structure and mechanism of NOx formation were discussed. The results showed that flame structure and mechanism of NOx formation had been changed greatly with the decrease of oxygen concentration and that the determining mechanism of NO formation in diffusion flame changed from thermal mechanism to prompt mechanism. With the decrease of oxygen concen- tration, the emission index of NO decreased monotony. |
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| Keywords: | high air temperature combustion oxygen concentration NOx numerical analysis |
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