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

논문 기본 정보

자료유형
연구보고서
저자정보
저널정보
한국자동차공학회 한국자동차공학회 기타 간행물 한국자동차공학회 기타간행물(Proceedings of UK)
발행연도
1998.11
수록면
155 - 172 (18page)

이용수

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

초록· 키워드

오류제보하기
The investigation was conducted on a high-speed direct injection diesel engine and was concerned with the effects of exhaust gas recirculation (EGR) on diesel engine combustion and emissions. In particular, the effects of carbon dioxide(CO₂), a principal constituent of EGR, on combustion and emissions were analysed and quantified experimentally.
The use of CO₂ to displace oxygen(O₂) in the inlet air resulted in reduction in the O₂ supplied to the engine(dilution effect), increased inlet charge thermal capacity(thermal effect), and, potentially, participation of the CO₂ in the combustion process (chemical effect). In a separate series of tests the temperature of the engine inlet charge was raised gradually in order to simulate the effect of mixing hot EGR with engine inlet air. Finally, tests were carried out during which the CO₂ added to the engine air flow increased the charge mass flowrate to the engine, rather than displacing some of the O₂ in the inlet air.
It was found that when CO₂ displaced O₂ in the inlet charge, both the chemical and thermal effects on exhaust emissions were small. However, the dilution effect was substantial, and resulted in very large reductions in exhaust oxides of nitrogen (NO_x) at the expense of higher particulate and unburned hydrocarbon (uHC) emissions. Higher inlet charge temperature increased exhaust NO_x and particulate emissions, but reduced uHC emissions. Finally, when CO₂ was additional to the inlet air charge(rather than displacing O₂), large reductions in NO_x were recorded with little increase in particulate emissions.

목차

Abstract

1.INTRODUCTION

2.EXPERIMENTAL METHOD

3.RESULTS AND DISCUSSION

4.DISCUSSION OF HOW THE DILUTION EFFECT SUPPRESSES NOx FORMATION

5.CONCLUSIONS

REFERENCES

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

최근 본 자료

전체보기

댓글(0)

0

UCI(KEPA) : I410-ECN-0101-2009-556-014129973