Title :
Numerical Simulation of Urea Aqueous Solution Injection Process in a Selective Catalytic Reduction System
Author :
Tian, Xinna ; Xiao, Youhong ; Zhang, Wenping
Author_Institution :
Coll. of Power & Energy Eng., Harbin Eng. Univ., Harbin, China
Abstract :
Selective catalytic reduction (SCR) technique has been used to reduce NOx emission from engines for decades. The concentration and distribution of ammonia before SCR converter can affect the conversion efficiency of NOx in SCR system. In this paper, the injection process of urea aqueous solution has been simulated by the CFD software Fluent to obtain the distribution of ammonia mass fraction in the exhaust pipe, and the factors which can affect the distribution of ammonia have been analyzed.
Keywords :
ammonia; catalysis; computational fluid dynamics; diesel engines; exhaust systems; reduction (chemical); CFD software; Fluent; NOx emission reduction; ammonia concentration; ammonia distribution; ammonia mass fraction; conversion efficiency; engines; exhaust pipe; selective catalytic reduction system; urea aqueous solution injection process; Analytical models; Computational fluid dynamics; Diesel engines; Educational institutions; Measurement standards; Numerical simulation; Power engineering and energy; Spraying; Thermal decomposition; Thyristors;
Conference_Titel :
Bioinformatics and Biomedical Engineering (iCBBE), 2010 4th International Conference on
Conference_Location :
Chengdu
Print_ISBN :
978-1-4244-4712-1
Electronic_ISBN :
2151-7614
DOI :
10.1109/ICBBE.2010.5516580
