| 제목 |
The Effect Exhaust Temperature to decrease Solid deposit phenomena in SCR Systems |
| 분야 |
연료 및 윤활유/연비 |
| 언어 |
English |
| 저자 |
와르다나(울산대학교), 정용진(한국에너지기술연구원), 표영덕(한국에너지기술연구원), 장진영(한국에너지기술연구원), 고아현(한국에너지기술연구원), 임옥택(울산대학교), 아르디카(울산대학교), 와호노밤방(울산대학교), 조현(울산대학교), 우영민(한국에너지기술연구원), 이영재(한국에너지기술연구원) |
| Key Words |
Temperature, urea injection, selective catalytic reduction, wall impingement, diesel engine, Ure a Water Solution (UWS) |
| 초록 |
Diesel engines are commonly used for public transportation at road and off road applications. Growth production of the diesel engine is very significantly from year to year. Nitride Oxide (NOx) from diesel engine was the one of the major sources of the air pollution. Selective Catalytic Reduction (SCR) with Ammonia (NH3) has been successfully used to remove NOx from diesel engine with chemical reaction become steam (H2O) and Nitrogen (N2). However, ammonia decomposition process is usually incomplete and occurred the solid deposit in SCR system. This study presents about simulation and systematic study of the effects of exhaust gas temperature to improve the quality of urea decomposition process and prevent occurrence of solid deposited in the system using STARCCM+. Simulation studies were performed at 2 models of CFD, first using box with optical access and second using winding pipe. The temperature used for process of ammonia uniformity in diesel SCR systems have been investigated with ambient temperature (298 K) and inlet gas temperature (686 K) operation. Numerical results were validated using concentration distribution of reduced NOx at the catalyst outlet. |
| 원문(PDF) |
다운로드
|
