乙烯与乙烷层流预混火焰碳烟生成特性实验研究

发布时间：2018-05-16 06:34

本文选题：乙烯 + 乙烷　；参考：《中国电机工程学报》2016年16期

【摘要】：采用稳定滞止火焰探针取样方法和扫描电迁移率粒径谱仪对以乙烯和乙烷层流预混火焰碳烟生成分别进行了实验研究。并利用考虑辐射修正后的OPPDIF程序以及USC mech II机理进行了模拟来辅助分析实验结果。探究了两种燃料的碳烟颗粒粒径分布的演变规律以及对比了两者碳烟生成的异同。结果表明,相同碳氧比和相同最大火焰温度情况下,两者的碳烟粒径分布随高度的变化规律趋势一致,只是乙烷火焰相对于乙烯火焰,粒径分布在火焰高度上有1~2mm的偏差。基于对火焰场温度和组分分布的分析,发现这个差别是由于两种燃料火焰场在相同高度,反应时间和温度的偏差导致。
[Abstract]:The formation of flame soot from ethylene and ethane laminar premixed flame was studied by means of stable flame probe sampling method and scanning electromobility particle size spectrometer. The OPPDIF program considering radiation correction and the USC mech II mechanism are used to simulate and analyze the experimental results. The evolution law of particle size distribution of soot particles of two fuels and the similarities and differences of soot formation between them were studied. The results show that the variation of soot particle size distribution with the height of ethane flame is consistent with that of ethylene flame under the same ratio of carbon to oxygen and the same maximum flame temperature. However, the particle size distribution of ethane flame is different from that of ethylene flame, and the particle size distribution of ethane flame is different from that of ethylene flame at the same flame height. Based on the analysis of flame field temperature and component distribution, it is found that the difference is caused by the deviation of flame field at the same height, reaction time and temperature.
【作者单位】：清华大学燃烧能源中心;
【基金】：国家自然科学基金项目(91541122) 国家重点基础研究发展计划项目(973项目)(2013CB228500)~~
【分类号】：X701

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