CO2稀释对不同燃料无焰燃烧及NO生成特性的影响

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	CO2稀释对不同燃料无焰燃烧及NO生成特性的影响; Effects of CO2 Dilution on Flameless Combustion and NO Generation of Different Fuels
	田红 ; 刘正伟 ; 王飞飞 ; 胡章茂
刊名	动力工程学报
	2017
关键词	CO2稀释率峰值温度 NO排放无焰燃烧 CO2 dilution rate peak temperature NO emission flameless combustion
英文摘要	为探讨CO2稀释对不同燃料无焰燃烧机理的影响,通过实验和数值模拟研究了CO2稀释率对CH4、C3 H8和H2扩散燃烧的火焰温度、NO排放摩尔分数及无焰燃烧的影响.结果表明:随着CO2稀释率的增大,峰值温度和NO排放摩尔分数逐渐下降,峰值温度距燃烧器喷嘴的距离逐渐增大,炉内温度分布更加均匀,更有利于达到无焰燃烧状态;相同稀释率下,CO2稀释对降低炉内峰值温度及出口NO排放摩尔分数的效果由好到坏依次为:H2燃烧、CH4燃烧、C3 H8燃烧;当CO2稀释率足够大时,炉内燃烧处于无焰燃烧状态.; To study the impact of CO2 dilution on flameless combustion mechanism of different fuels,the effects of CO2 dilution rate on the flameless combustion,NO generation and diffusion flame temperature of following fuels were investigated experimentally and numerically,such as the fuels CH4,C3 H8 and H2,etc.Results show that,as the CO2 dilution rate increases,the peak temperature and NO emission decrease,while the distance between the peak temperature point and the burner nozzle increases gradually,and the temperature distribution in the furnace becomes more homogeneous,which makes it more conducive to reach flameless combustion state.For the same dilution rate,the effect of CO2 dilution on the decreasing of peak temperature and NO emission of different fuels from strong to weak is as follows:H2 ＞ CH4 ＞C3 H8.The combustion in furnace would be in a flameless state as long as the dilution rate of CO2 is high enough.; 国家自然科学基金资助项目; 湖南省自然科学基金资助项目; 6; 440-446; 37
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/466094]
专题	工学院
推荐引用方式 GB/T 7714	田红,刘正伟,王飞飞,等. CO2稀释对不同燃料无焰燃烧及NO生成特性的影响, Effects of CO2 Dilution on Flameless Combustion and NO Generation of Different Fuels[J]. 动力工程学报,2017.
APA	田红,刘正伟,王飞飞,&胡章茂.(2017).CO2稀释对不同燃料无焰燃烧及NO生成特性的影响.动力工程学报.
MLA	田红,et al."CO2稀释对不同燃料无焰燃烧及NO生成特性的影响".动力工程学报 (2017).