메뉴 건너뛰기
.. 내서재 .. 알림
소속 기관/학교 인증
인증하면 논문, 학술자료 등을  무료로 열람할 수 있어요.
한국대학교, 누리자동차, 시립도서관 등 나의 기관을 확인해보세요
(국내 대학 90% 이상 구독 중)
로그인 회원가입 고객센터 ENG
주제분류

추천
검색
질문

이용수

표지
📌
연구주제
📖
연구배경
🔬
연구방법
🏆
연구결과
AI에게 요청하기
추천
검색
질문

이 논문의 연구 히스토리 (2)

초록· 키워드

오류제보하기
To meet stringent LEV and ULEV emission standards, a considerable amount of development work was necessary to ensure suitable efficiency and durability of catalyst systems. The main challenge is to cut off the engine cold-start emissions. It is known that up to 80% of the total hydrocarbons(THC) emissions are exhausted within the first five minutes in case of US FTP 75 cycle. The problem is that the catalytic converter is not properly operated under 300°C range. The best solution is to use Closed-Coupled Catalyst(CCC) which provides fast light-off temperature by utilizing the energy in the exhaust gas. However, if some malfunction occurred at engine operation and the catalyst temperature exceeds 1050°C, the catalytic converter is deactivated and shows the poor conversion efficiency. 111is paper presents parametric study of engine operating conditions affecting on catalytic converter temperature, which gives catalytic deactivation. Exhaust gas temperature and catalyst temperature were measured as a function of Air/Fuel ratio, Ignition timing and misfire rates. It was found that ignition timing and misfire rates can result in the deactivation of the catalytic converter. Significant reduction in light-off time can be achieved with proper control of the operating conditions, which can reduce cold-start HC emissions as well.

목차

ABSTRACT

1. 서론

2. 실험

3. 실험결과

4. 결론

후기

참고문헌

참고문헌 (0)

참고문헌 신청

함께 읽어보면 좋을 논문

논문 유사도에 따라 DBpia 가 추천하는 논문입니다. 함께 보면 좋을 연관 논문을 확인해보세요!

이 논문의 저자 정보

이 논문과 함께 이용한 논문

최근 본 자료

전체보기

댓글(0)

0

UCI(KEPA) : I410-ECN-0101-2009-556-014007863