论文部分内容阅读
作者使用各种方法,包括悬浮粒子电子分析仪,冷凝核计数仪,快速-容积串联惯性冲击收集器,滤纸称重法对一台分开式燃烧室,自然吸气小轿车用柴油机排气中的碳烟微粒进行测量和分析。对柴油机排气中碳烟微粒进行取样和研究,以确定微粒的数量浓度、表面积浓度、体积浓度、质量浓度及其分布。该柴油机排气中微粒的数量浓度为(5～6)×10~7/cm~3,表面积浓度为1.51m~2/m~3,体积浓度为4.35×10~(-2)cm~3/m~3,质量浓度为47.5mgm~(-3)。碳烟微粒大小按质量区分,90%在1.2μm以下的范围内。本文对实验方法和结果进行了详细讨论。
The authors used a variety of methods, including suspended particle electron analyzer, condensing nuclear counter, fast-volume series inertial impact collector, filter paper weighing method on a separate combustion chamber, naturally aspirated cars with diesel exhaust Soot particles were measured and analyzed. Samples and studies of soot particles in diesel exhaust were performed to determine the number concentration, surface area concentration, volume concentration, mass concentration and their distribution. The concentration of fine particles in the exhaust of the diesel engine is (5 ~ 6) × 10 ~ 7 / cm ~ 3, the surface area concentration is 1.51m ~ 2 / m ~ 3 and the volume concentration is 4.35 × 10 ~ (-2) cm ~ / m ~ 3, the mass concentration of 47.5mgm ~ (-3). The soot particle size is by mass and 90% is within 1.2 μm. In this paper, the experimental methods and results are discussed in detail.