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대형 디젤엔진용 Urea-SCR 시스템의 NH3 슬립 억제를 위한 최적 인젝터의 형상 및 위치에 관한 수치적 연구

Title
대형 디젤엔진용 Urea-SCR 시스템의 NH3 슬립 억제를 위한 최적 인젝터의 형상 및 위치에 관한 수치적 연구
Other Titles
Numerical Study on the optimum Injector Shape and Location of Urea-SCR System of Heavy-duty Diesel Engine for Preventing NH₃Slip
Author
김우승
Keywords
Urea; 요소; SCR; 선택적 촉매환원; Injector; 분사장치; Heavy-duty Diesel Engine; 대형디젤엔진
Issue Date
2004-10
Publisher
한국자동차공학회
Citation
한국자동차공학회 2004년 추계학술대회논문집, v.1, Page.229-235
Abstract
In the past few years, Considerable efforts have been directed towards the further development of urea-SCR (selective catalytic reduction) technique for diesel-driven vehicle. Although urea possesses considerable advantages over ammonia in terms of toxicity and handling, its necessary decomposition into ammonia and carbon dioxide complicates the DeNOx process. Hence the keys to implementation of SCR technology is speeding up thermolysis, good mixing of ammonia and gas and reducing NH₃ slip. In this context, this study performed three-dimensional numerical simulation of urea injection of heavy-duty diesel engine under various conditions of injection pressure, location and injector hole number. The results of this study show some guidelines about the optimum locations and shape of urea injector for reducing NH₃ slip and improving DeNOx performance.
URI
http://www.dbpia.co.kr/journal/articleDetail?nodeId=NODE00562123https://repository.hanyang.ac.kr/handle/20.500.11754/151252
Appears in Collections:
COLLEGE OF ENGINEERING SCIENCES[E](공학대학) > MECHANICAL ENGINEERING(기계공학과) > Articles
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