中文摘要：

为了研究生物柴油对柴油机燃烧及颗粒物组分的影响,在一台四缸车用共轨柴油机上进行发动机燃用调合生物柴油的性能试验,利用燃烧分析仪分析生物柴油对发动机燃烧过程的影响,利用热重分析仪（TGA）研究颗粒物氧化特性,利用气相色谱/质谱联用仪（GC-MS）研究生物柴油对颗粒物SOF组分的影响。结果表明：随着生物柴油掺混比例的增加,发动机最大爆发压力增大,缸压曲线前移,预混燃烧放热率峰值减小,峰值对应的曲轴转角提前,B20放热率峰值对应的曲轴转角比B0提前2.8°CA,峰值减小19%。随着生物柴油掺混比例增加,颗粒物中H2O和可溶性有机物（SOF）的质量分数增加,碳烟（Soot）和无机盐的质量分数减小,并且颗粒物中SOF的组分酯类及酸类物质增加,烷烃类、芳香烃及酚类物质相应地减少。B0排放颗粒物中SOF的碳原子数主要在C12~C24之间,B20排放颗粒物中SOF碳原子数分布范围较为集中,主要在C15~C22之间。

英文摘要：

In order to study the effect of biodiesel on combustion and particulate matter of diesel engine, the performance test of engine was carried out on a four-cylinder common rail vehicle used diesel engine fueled with biodiesel blending. The effects of biodiesel on the combustion process of engine were analyzed by combustion analyzer. The characteristics of particulate matter was explored by thermogravimetric analyzer （TGA） and the effects of biodiesel on the SOF components of the particulate matter were studied by gas chromatogra that by increasing biodiesel blending ratio, the pressure curve moves forward, the peak value of phy / mass spectrometry （GC-MS）. Results show maximum burst pressure increases, the cylinder premixed combustion heat dissipation decreases, the peak corresponding to the crank angle moves ahead, and the corresponding crank angle of heat dissipation peak of B20 is 2. 8% CA earlier than BO and the peak value decreases 19%. If the blending ratio of biodiesel increases, the mass fraction of H20 and soluble organic matter （SOF） in the particulate matter increases, the mass fraction of soot and inorganic salts decreases, and the components of SOF in the particulate matter and the acid are increased, while alkanes, aromatics and phenols are correspondingly reduced. The number of carbon atoms in SOF is mainly between C12 and C24, the distribution of SOF carbon atoms in B20 emission particles is more concentrated, mainly between C15 and C22.