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中文摘要：
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.
英文摘要：
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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