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4기통 디젤엔진에서의 Lean NOx Trap 촉매 정화 특성에 관한 연구A Study on the Conversion Performance of Lean NOx Trap for a 4-stroke Diesel Engine
- Other Titles
- A Study on the Conversion Performance of Lean NOx Trap for a 4-stroke Diesel Engine
- Issue Date
- Mar-2011
- Publisher
- 한국자동차공학회
- Keywords
- Diesel engine(디젤 엔진); Lean Nox Trap(LNT; 흡장형 De-NOx 촉매); External injection(후분사); Aftertreatment(후처리); Reductant(환원제)
- Citation
- 한국자동차공학회 논문집, v.19, no.2, pp.78 - 83
- Indexed
- KCI
- Journal Title
- 한국자동차공학회 논문집
- Volume
- 19
- Number
- 2
- Start Page
- 78
- End Page
- 83
- ISSN
- 1225-6382
- Abstract
- Diesel engine has many advantages such as high thermal efficiency, low fuel consumption and low emission of CO_2. However, the diesel engine faced with strengthened emission regulation about NOx and PM. To suppress NOx emission, after-treatment systems such as Lean NOx Trap (LNT), Selective Catalytic Reduction (SCR) are considered as a more practical strategy. This paper investigated the performance of Lean NOx trap of the 4 stroke diesel engine which had a LNT catalyst. Characteristic of exhaust emission at NEDC mode was analyzed. From this result, the effect of nozzle attaching degree, injection quantity and gas flow change on NOx conversion performance was clarified.
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Related Researcher
- LEE, KI HYUNG
- ERICA 공학대학 (DEPARTMENT OF MECHANICAL ENGINEERING)