摘要
本文着重讨论层流预混火焰中,碳黑的先驱多环芳烃(PAHs)形成的化学反应动力学机理。该机理包括101种组分、546个基元反应。通过与实验结果的比较表明,该模型能够较好地预报碳氢燃料预混火焰中PAHs的生成过程。计算结果还表明当量比和压力PAHs的生成与排放具有重要影响,且存在一个化学当量比,在此当量比下,PAHs的浓度达到极大值。
This paper discussed chemical mechanism of PAHs (Polycyclic Aromatic Hydrocarbons) formation which is precursor of soot in laminar premixed flame. The mechanism includes 101 species and 546 reactions. Results compared with experiment indicate that the model can preferably predict PAHs formation in laminar premixed hydrocarbon flame. Numerical results also show that equivalence ratio and pressure have significant effect on PAHs formation or yield. There are equivalence ratio under which PAHs concentrations reach maximum.
出处
《工程热物理学报》
EI
CAS
CSCD
北大核心
2004年第1期151-154,共4页
Journal of Engineering Thermophysics
基金
国家重点基础研究发展规划(973)资助项目(No.2002CB211602)
