3-D Numerical Study of Effect of Injection Parameters Upon the Uniformity of Ammonia in Urea-SCR

2013-01-2768

11/27/2013

Event
8th SAEINDIA International Mobility Conference & Exposition and Commercial Vehicle Engineering Congress 2013 (SIMCOMVEC)
Authors Abstract
Content
Nowadays, due to the stringent engine emission norms, an efficient technique is required to reduce oxides of nitrogen (NOx) from automobiles especially from the lean burn engines. Selective Catalytic Reduction (SCR) is found to be an efficient after treatment method used to reduce oxides of nitrogen (NOx) from the exhaust. However, for light duty vehicles, because of the limited size of the catalysts, ammonia slip nullifies its advantages. Lack of uniformity of ammonia at the SCR monolith entrance causes ammonia slip. This study addresses the effect of injection parameters, location of injector and shape of injector upon the flow parameters, exhaust gas temperature and flow rate. The results obtained from this study provide useful guidelines for optimizing the injection parameters to avoid the ammonia slip. The evaporation of Urea Water Solution (UWS) is also investigated.
Meta TagsDetails
DOI
https://doi.org/10.4271/2013-01-2768
Pages
6
Citation
Rajan, V., Mallikarjuna, J., and Venkitachalam, G., "3-D Numerical Study of Effect of Injection Parameters Upon the Uniformity of Ammonia in Urea-SCR," SAE Technical Paper 2013-01-2768, 2013, https://doi.org/10.4271/2013-01-2768.
Additional Details
Publisher
Published
Nov 27, 2013
Product Code
2013-01-2768
Content Type
Technical Paper
Language
English