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The Influences of Diesel Particulate Filter Installation on Air Pollutant Emissions for Used Vehicles
Diesel vehicle Smoke Particulate matter Diesel particulate filter PAHs
2016/3/28
Three kinds of diesel particulate filters (DPFs) were installed on used diesel-powered vehicles to investigate their
influences on air pollutant emissions. The air pollutant emissions were measured b...
柴油机壁流式过滤体捕集与流阻性能影响规律（Characteristics of Filtration and Flow-resistance of Wall-flow Diesel Particulate Filter）
柴油机 壁流式 微粒捕集器
2009/12/28
根据气流在柴油机壁流式微粒捕集器内的流动特点，将过滤壁面假设为由若干球状单元组成，建立了壁流式过滤体捕集过程的数学模型。研究了排气特征、过滤体结构参数对壁流式过滤体捕集及流阻性能的影响规律。结果表明，减小排气流量、增大过滤体体积等方法，既能优化捕集性能，又能优化流阻性能；减小过滤体长径比，能优化流阻性能，而对捕集性能没有影响；增大过滤壁厚度，能优化捕集性能，但会使流动性能恶化；改变排气温度和孔道宽...