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논문 기본 정보

저자정보
(연세대학교) (연세대학교) (연세대학교)
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한국자동차공학회 한국자동차공학회 춘계학술대회 2009 KSAE 부문종합 학술대회
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    초록·키워드

    Among emission gases, a Diesel Particulate Filter(DPF) to reduce PM, while a Diesel Oxidation Catalyst(DOC) or NH3-SCR using Urea for reduction fo NOx, are heavily studied around the world for commercial application. Moreover, to meet values of the strict regulations, a combination of emission reduction devices are required. One-dimensional DOC, DPF and SCR models in regard to NO<SUB>x</SUB> and PM reductions by NH3-SCR and NO-NO₂ conversion by oxidation catalyst incorporates essential individual physics. A series of numerical experiments were carried out and parametric analysis of the NO<SUB>x</SUB> and PM reductions was conducted. The models were validated with extensive empirical data regarding reduction efficiency. NO<SUB>x</SUB> conversion is a weak function of the flowrate at higher temperature. The NO<SUB>x</SUB> reduction depends on NO/NO₂ ratio at temperatures lower than 300℃.

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      UCI(KEPA) : I410-ECN-0101-2010-556-002787822