本文根据碳粒非均相着火,有无颗粒温度跃变现象,来判断CO的均相着火,阐述了MFF模型中颗粒边界层CO着火燃烧假设的理论意义.通过实验与理论对比,证明了小于100μm的碳粒有可能发生CO着火.MFF模型预报与连续膜模型,以及实验点都有好的符合.利用MFF模型推导出三种极限情况的燃烧模式,揭示了MFF模型与连续膜模型的理论关联.从理论与实验对比中,进一步地验证了MFF模型.
参考文献
[1] | Makino A;Law C K.Quasi-Steady and Transient Com-bustion of a Carbon Particle:Theory and Experimen-tal Comparisons[A].Pittsburg,1986:183-191. |
[2] | Mingchuan Zhang;Juan Yu;Xuchang Xu .A new flame sheet model to reflect the influence of the oxidation of CO on the combustion of a carbon particle[J].Combustion and Flame,2005(3):150-158. |
[3] | 章明川,于娟.考虑碳粒表面还原反应的移动火焰锋面(MFF)模型[J].工程热物理学报,2004(03):511-514. |
[4] | Makino A;Law C K .Ignition and Extinction of CO Flame over a Carbon Rod[J].Combustion Science and Technology,1990,73:589-615. |
[5] | Makino A .An Approximate Explicit Expression for the Combustion Rate of a Small Carbon Particle[J].Combustion and Flame,1992,90:143-154. |
[6] | 于娟 .挥发分、CO火焰与炭粒燃烧的相互作用及其模化[D].上海交通大学,2003. |
[7] | ZHANG Mingchuan;YU Juan;QI Yongfeng.Fur-ther Discussion on the Reality and Usability of the MOV-ing Flame Front Model for Combustion of a Carbon Par-ticle[A].Nagoya,2007 |
[8] | Smith I W .Kinetics of Combustion of Size-Graded Pul-verized Fuels in the Temperature Range 1200~2273 K[J].Combustion and Flame,1971,17:303-314. |
[9] | Tu C M;Davis H;Hottel H C .Combustion Rate of Car-bon[J].Industrial and Engineering Chemistry,1934,26:749-757. |
[10] | Smith D F;Gudmundsen A .Mechanism of Combustion of Individual Particles of Solid Fuels[J].Industrial and Engineering Chemistry,1931,23:277-285. |
[11] | Laboratory Studies of Combustion .British Coal Utiliza-tion Research Association Annual Report[R].,1966. |
[12] | Katsnel'son B D;Marone I Ya.[J].Teploenergetika,1964(11) |
[13] | 张健,章明川,于娟,齐永锋,林郁郁.移动火焰锋面(MFF)模型火焰锋面确定条件的进一步改进[J].工程热物理学报,2007(z2):153-156. |
[14] | Libby P A;Blake T R .[J].Combustion and Flame,1979,36:139-169. |
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