@article{(Open Science Index):https://publications.waset.org/pdf/9998334, title = {Numerical Predictionon the Influence of Mixer on the Performance of Urea-SCR System}, author = {Kyoungwoo Park and Chol-Ho Hong and Sedoo Oh and Seongjoon Moon}, country = {}, institution = {}, abstract = {Diesel vehicle should be equipped with emission after-treatment devices as NOx reduction catalyst and particulate filtersin order to meet more stringer diesel emission standard. Urea-SCR is being developed as the most efficient method of reducing NOx emissions in the after-treatment devices of diesel engines, and recent studies have begun to mount the Urea-SCR device for diesel passenger cars and light duty vehicles. In the present study, the effects of the mixer on the efficiency of urea-SCR System (i.e., NH3uni- formityindex (NH3 UI) is investigated by predicting the transport phenomena in the urea-SCR system. The three dimensional Eulerian-Lagrangian CFD simulationfor internal flow and spray characteristics in front of SCR is carried out by using STAR-CCM+ 7.06 code. In addition, the paper proposes a method to minimize the wall-wetting around the urea injector in order to prevent injector blocks caused by solid urea loading. }, journal = {International Journal of Mechanical and Mechatronics Engineering}, volume = {8}, number = {5}, year = {2014}, pages = {998 - 1004}, ee = {https://publications.waset.org/pdf/9998334}, url = {https://publications.waset.org/vol/89}, bibsource = {https://publications.waset.org/}, issn = {eISSN: 1307-6892}, publisher = {World Academy of Science, Engineering and Technology}, index = {Open Science Index 89, 2014}, }