Effects of Various Model Parameters in the Simulation of a Diesel SCR System Southwest Research Institute

Format:

Conference/Event

Author/Creator:

Das, Das, author.

Contributor:

Zainal Abidin

Das, Kaushik

Mehta, Darius

Conference Name:

SAE 2012 World Congress & Exhibition (2012-04-24 : Detroit, Michigan, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2012

Summary:

A Selective Catalytic Reduction (SCR) system is a simple solution to mitigate high concentration of nitrogen oxides from tail pipe emissions using ammonia as catalyst. In recent years, implementation of stringent emission standards for diesel exhaust made the SCR system even more lucrative aftertreatment solution for diesel engine manufacturer due to its well established reaction mechanism and lower initial cost involved compared to other available options. Nitrogen oxides reduction efficiency and ammonia slip are two main parameters that affects SCR system performance. Therefore, primary design objective of an efficient SCR system is to enhance reduction of nitrogen oxides and control ammonia slip. Both these factors can be improved by having a uniform mixture of ammonia at the SCR inlet. In this mathematical simulation, various parameters that affect accuracy in predicting the uniformity of mixture at the SCR inlet have been documented. The uncertainties involved with these modeling and input parameters are discussed and a number of possible methods to ascertain their values in the mathematical models have been suggested

Notes:

Vendor supplied data

Publisher Number:

2012-01-1297

Access Restriction:

Restricted for use by site license