인문학
사회과학
자연과학
공학
의약학
농수해양학
예술체육학
복합학
개인구독
소속 기관이 없으신 경우, 개인 정기구독을 하시면 저렴하게
논문을 무제한 열람 이용할 수 있어요.
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.
초록·키워드
The application of SCR systems has been considered an effective exhaust after-treatment method for NOx emission control. Current Urea-SCR systems is possible to achieve 90% NOx if the NH3:NOx ratio is 1:1.
However, the reaction has a limited non-uniformity of the exhaust gas flow and ammonia concentration distribution. A uniformity index is developed to evaluate the mixture quality in front of the SCR catalyst, which could also serve as an indirect indication of the de-NOx efficiency of the SCR system.
Current papers have been presented the geometrical effects on flow mixing by using 3D Computational Fluid Dynamics (CFD) tool. In this paper, it is presented that the NOx reduction rate has been influenced by the flow uniformity index of NH3 in front of the catalytic converter by using 3D Computational Fluid Dynamics(CFD) tool. In order to achieve uniform flow at monolith front face, we have been changed with a various diffuser angle and mixer blade angle. It is found that the smaller diffuser angle and mixer blade angle are better NH3 uniformity in front of the SCR catalyst.
However, the reaction has a limited non-uniformity of the exhaust gas flow and ammonia concentration distribution. A uniformity index is developed to evaluate the mixture quality in front of the SCR catalyst, which could also serve as an indirect indication of the de-NOx efficiency of the SCR system.
Current papers have been presented the geometrical effects on flow mixing by using 3D Computational Fluid Dynamics (CFD) tool. In this paper, it is presented that the NOx reduction rate has been influenced by the flow uniformity index of NH3 in front of the catalytic converter by using 3D Computational Fluid Dynamics(CFD) tool. In order to achieve uniform flow at monolith front face, we have been changed with a various diffuser angle and mixer blade angle. It is found that the smaller diffuser angle and mixer blade angle are better NH3 uniformity in front of the SCR catalyst.
본문·목차
인공지능 문자 인식 모델을 통해 추출된 텍스트로, 일부 오타나 오류가 포함될 수 있으나 지속적으로 개선 중입니다.
오류를 발견하셨다면 해당 부분을 드래그한 후 ' 를 통해 신고해주세요.
오류를 발견하셨다면 해당 부분을 드래그한 후 ' 를 통해 신고해주세요.
최근 본 자료 전체보기
UCI(KEPA) : I410-ECN-0101-2014-550-002586214