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

fYear

2010

fDate

18-20 June 2010

Firstpage

1

Lastpage

5

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; NO_x 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;

fLanguage

English

Publisher

ieee

Conference_Titel

Bioinformatics and Biomedical Engineering (iCBBE), 2010 4th International Conference on

Conference_Location

Chengdu

ISSN

2151-7614

Print_ISBN

978-1-4244-4712-1

Electronic_ISBN

2151-7614

Type

conf

DOI

10.1109/ICBBE.2010.5516580

Filename

5516580