| 当量比/EGR率对生物柴油多环芳香烃影响的理论分析 |
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| 引用本文： | 李立琳,王忠,许广举,李瑞娜.当量比/EGR率对生物柴油多环芳香烃影响的理论分析[J].郑州大学学报(工学版),2012,33(4):111-115. |
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| 作者姓名： | 李立琳 王忠 许广举 李瑞娜 |
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| 作者单位： | 1. 河南工程学院机械工程系,河南郑州450001;江苏大学汽车与交通工程学院,江苏镇江212013
2. 江苏大学汽车与交通工程学院,江苏镇江,212013 |
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| 基金项目： | 国家自然科学基金资助项目，河南省教育厅重点资助项目 |
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| 摘 要： | 采用CHEMKIN中的反射激波管模型,模拟了生物柴油的燃烧,探讨了不同当量比和EGR率对生物柴油的碳烟前驱体多环芳香烃中的苯、萘、菲、芘的影响.研究表明:当量比由1.0,1.7到2.1逐渐增大,苯、萘、菲、芘的摩尔分数变小,抑制多环芳香烃的形成,减少碳烟;前期EGR率为0,5%,10%,20%和40%时苯的曲线几乎重合,4μs后EGR率为40%;萘、菲、芘随EGR率增大呈增大趋势.
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| 关 键 词： | 生物柴油 当量比 EGR率 PAHs 理论分析 |
Theoretical Analysis of Infuence for Equivalence Ratio/EGR on the Biodiesel PAHs |
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| LI li-lin
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WANG Zhong
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XU Guang-ju
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LI Rui-na.Theoretical Analysis of Infuence for Equivalence Ratio/EGR on the Biodiesel PAHs[J].Journal of Zhengzhou University: Eng Sci,2012,33(4):111-115. |
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| Authors: | LI li-lin WANG Zhong XU Guang-ju LI Rui-na |
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| Affiliation: | 1.Department of Mechanical Engineering,Henan institute of Engineering,Zhengzhou 450000,China;2.School of Automobile and Traffic Engineering,Jiangsu University,Zhenjiang 212013,China) |
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| Abstract: | The reflected shock using CHEMKIN model to simulate biodiesel combustion,analyze the effects of different equivalence ratio and EGR rate on the biodiesel soot precursor polycyclic aromatic hydrocarbons on benzene,naphthalene,phenanthrene and pyrene.The results showed that: benzene,naphthalene,phenanthrene,pyrene mole fraction decreased with the increase of equivalence ratio form 1.0,1.7to 2.1,inhibited the formation of polycyclic aromatic hydrocarbons,decreased the soot,EGR rate of 0,0,5%,10%,20% and 40% benzene curves almost coincide in the prophase,40% EGR rate higher after 4 μs,naphthalene,phenanthrene,pyrene increased with the increase of EGR rate. |
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| Keywords: | biodiesel equivalence ratio EGR rate PAHs theoretical analysis |
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