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논문 기본 정보

자료유형
학술대회자료
저자정보
김영웅 김대중 (GM 대우자동차)
저널정보
한국자동차공학회 한국자동차공학회 춘 추계 학술대회 논문집 한국자동차공학회 2006년 추계학술대회 논문집 Volume I
발행연도
2006.11
수록면
92 - 99 (8page)

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A cusp aftertreatment technology has been required in order to meet the most stringent regulation like PZEV. As TWC system has been tried to apply for, technology to reduce LOT has been still hot issue. In this paper the allowable limit value of LOt ofTWC will be pointed out. GMDAT's recent advanced calculation program(AU-85) which can offer more minute calculation including durability and poisoning effect than current program(AU-53) showed a good correlation with current ULEVII system. This can be extended to apply to PZEV especially predicting in LOt behavior during warm up condition In this program cold start region can be divided into three areas which have own characteristics regarding temperature profiles set by each RPM, A/F and even PGM's oxidation energy. In calculating catalyst oxidation and internal combustion energy we assumed propane as a model gas following ideal gas behavior in NMHC. Lots of factors were requested in order to correlate test result as input data like engine RPM, A/F, engine displacement, catalyst loading, ratio and even cell density. Consequently by modulating major variables comprising catalyst design we could take on appropriate LOt which met target value set down based on previous emission vehicle program. It was possible to finalize the optimized configuration of catalyst system in cost and performance including PGM loading, ratio and cell density.

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ABSTRACT
1. 서론
2. 연구배경
3. Result
4. 결론
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