Experimental Studies on the Influence of Diesel Engine Operating Parameters on Properties of Emitted Soot Particles
Experimental Studies on the Influence of Diesel Engine Operating Parameters on Properties of Emitted Soot Particles
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DOI：
10.1080/00102202.2011.611551
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发表时间：
2012-01
影响因子：
1.9
通讯作者：
U. Leidenberger;W. Mühlbauer;S. Lorenz;S. Lehmann;D. Brüggemann
中科院分区：
文献类型：
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作者：
U. Leidenberger;W. Mühlbauer;S. Lorenz;S. Lehmann;D. Brüggemann
柴油机运行参数对排放碳烟粒子的物理化学性质有很大影响。为了找到缸内燃烧过程和碳烟颗粒的发动机性能之间的相关性，对现代轻型生产柴油机（涡轮直喷，TDI）和光学访问的单缸柴油机（单缸）进行了参数研究。几种技术已经结合起来，分析燃烧过程以及排放的颗粒。采用扫描迁移率粒度仪（SMPS）测定了TDI发动机排放碳烟颗粒的粒径，并采用高分辨透射电镜（HR-TEM）和热重分析（TG）对碳烟样品进行了分析。此外，在光学访问的单缸发动机的内部燃烧已观察到的时间分辨光谱以及OH* 和C2成像。结果表明，在这两种情况下，增加喷射压力导致随着氧化温度的降低，烟灰颗粒团聚体和初级颗粒尺寸减小。
Physical and chemical properties of emitted soot particles are influenced by diesel engine operating parameters. In order to find correlations between the in-cylinder processes of combustion and the engine-out properties of soot particles, parameter studies were carried out on a modern light duty production diesel engine (turbo direct injection, TDI) and an optically accessed single cylinder diesel engine (single cylinder). Several techniques have been combined to analyze the combustion process as well as the emitted particles. The size of emitted soot particles of the TDI engine has been determined by a scanning mobility particle sizer (SMPS), and soot samples have been analyzed by a high-resolution transmission electron microscope (HR-TEM) and by thermogravimetry (TG). In addition, the internal combustion in an optically accessed single cylinder engine has been observed by time resolved spectroscopy as well as OH*- and C2-imaging. It turns out that in both cases, increasing injection pressure leads to a decreasing soot particle agglomerate and primary particle size with decreasing oxidation temperature.