Ash Characteristic in the Exhaust Line of a Diesel Engine

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  • ディーゼル機関の排気系におけるアッシュの特性
  • ディーゼル キカン ノ ハイキケイ ニ オケル アッシュ ノ トクセイ

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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.

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