包含NO_2的正庚烷燃烧简化机理  

Simplified N-Heptane Combustion Mechanism Including NO_2 Formation

作　　者：王增养[1] 何超[1] 赵龙庆[1] 李加强[1,2] 

机构地区：[1]西南林业大学机械与交通学院,昆明650224 [2]北京理工大学机械与车辆学院,北京100081

出　　处：《内燃机工程》2014年第2期85-91,共7页Chinese Internal Combustion Engine Engineering

基　　金：国家自然科学基金资助项目(51006085);云南省应用基础面上项目(2010ZC091);云南省教育厅科学研究基金项目(09C0180)

摘　　要：在对美国加利福尼亚大学燃烧实验室给出的氮氧化物(NOx)生成机理(49种组分,277个基元反应)进行敏感性分析后,提取出对NOx生成的重要反应,加入到正庚烷燃烧简化机理(29种组分,52个基元反应)中,创建了一个新的包含NOx的正庚烷燃烧化学动力学简化机理(40种组分,72个基元反应)。最后将得到的新机理与Patel正庚烷燃烧机理的模拟结果进行对比分析,以及通过与计算流体动力学CFD软件耦合的模拟结果对比分析,验证了该机理的有效性和准确性。By using sensitivity analysis, several important reactions related to NOx： formation were abstracted from the detailed mechanisms of NOx formation consisting of 49 species and 277 reactions, advanced by Combustion Laboratory of University of California, the United States. Then these key reactions were incorporated into the simplified n-heptane combustion mechanism developed by Patel etc. , including 29 species and 52 reactions, to create a new simplified dynamics mechanism of n-heptane combustion including NOx formation （ there were 40 species and 72 reactions）. Compared results of the new mechanism with Patel mechanism and analyzed results of coupling with CFD, validity and accuracy of the new mechanism are veri- fied. It predicates the NOx generation, especially provide a theoretical basis and scientific support for NO2 generation.

关 键 词：内燃机 NO2 正庚烷 燃烧 简化机理 

分 类 号：TK421.5[动力工程及工程热物理—动力机械及工程]