지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술대회자료
- 저자정보
- 발행연도
- 2012.11
- 수록면
- 105 - 110 (6page)
이용수
이 논문의 연구 히스토리 (2)
- 이 논문의 후속연구가 궁금하신가요?
- 연관 학술논문 또는 학술발표를 통해 보다 발전된 연구결과를 확인하실 수 있습니다.
- 이 논문의 연구 히스토리 확인하기
초록· 키워드
오류제보하기
The selective catalytic reduction(SCR) is an effective technique to reduce nitrogen oxides (NO<SUB>x</SUB>) emitted from engines. A three dimensional numerical modeling of urea spray characteristics and their interaction with the exhaust gas flow is developed to evaluate different configurations during development process of a urea-SCR reactor with zeolite-based catalyst. In this study, the change of urea spray angle and the numbers of urea injector hole have been examined by the numerical simulation. The results show that the urea injector with 90° spray angle has the most amount of ammonia conversion effeciency at the entrance of SCR reactor and also the atomization and evaporation of urea droplets are the best. This is because the droplets spread more uniformly and widely than those of other various spray angles. It is also found that the urea injector with four-hole shows better uniformity than that with two-hole of axial direction injection because the exhaust gases are well mixed with the aqueous urea solution. On the other hand, the atomization efficiency of the urea injector with two-hole is decreased compare to the four-hole injector because the sprayed urea droplets are concentrated on the center region of the exhaust gas inlet and also don"t spread evenly.
목차
Abstract
1. INTRODUCTION
2. NUMERICAL ANALYSES
3. RESULTS AND DISCUSSION
4. CONCLUSIONS
ACKNOWLEDGMENT
REFERENCES
참고문헌 (0)
참고문헌 신청이 논문의 저자 정보
이 논문과 함께 이용한 논문
최근 본 자료
댓글(0)
0
UCI(KEPA) : I410-ECN-0101-2014-556-000708690