Ash Characteristic in the Exhaust Line of a Diesel Engine


It is necessary for predicting Diesel Particulate Filter (DPF) pressure drop to estimate ash trapped in a DPF. Therefore, the Particle Matter (PM) is sampled by diesel engine experiments to investigate the component, size, and amount of ash by using the Scanning Electron Microscope (SEM), Transmission Electron Microscope (TEM) and Inductively Coupled Plasma (ICP). As a result, the components of ash derive from the engine oil and size of ash accumulated in a DPF is 40~300 nm. Ash gathered from the exhaust manifold are mainly consists of zinc oxide. Consequently, the mechanism of ash formation is found out for modeling on the component, size and amount of ash.DPF前後の圧力損失を予測するため,流入するAshの量,性状を予測することが必要である.そのため,実機エンジン試験によりPMを採取し,SEM,ICP等によりPM中Ashの成分,形状を分析した.その結果,Ash生成凝集過程を明らかにするとともに,排出されるAshの成分,粒子径,量等を予測した.


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  • Accession Number: 01673404
  • Record Type: Publication
  • Source Agency: Japan Science and Technology Agency (JST)
  • Files: TRIS, JSTAGE
  • Created Date: May 15 2018 3:03PM