Efficient Development and Validation Method for SCR Systems
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The introduction of Euro 6 requires diesel motors not only to achieve particulate reduction, but also comply with a tight limit value for nitrogen oxide. High-efficiency SCR systems are therefore an essential part of exhaust-gas aftertreatment for attaining these goals. For both the simulation and the subsequent validation processes under real conditions, Eberspächer Exhaust Technology has devised a new development method for SCR systems in order to successfully respond to the increasingly shorter development times.
Selective Catalytic Reduction
In addition to diesel particulate reduction the Euro 6 standard requires efficient denitrification of the exhaust gas. The SCR (Selective Catalytic Reduction) technology has become an established approach. With this technology, an SCR catalytic converter continuously converts the nitrogen oxide (NOx) from the exhaust gas by means of a reducing agent (in this case ammonia (NH3)) into nitrogen. In the vehicle itself, the ammonia is produced from...
The authors would like to offer their sincere thanks to Dr. Rolf Jebasinski, Dr. Bernd Westerhoff, Dr. Joachim Hildebrand, Dr. Laurence Marie- Hieber, Krishna Vempati, Oleksandr Semenov and Vijayabhaskar Solipuram, all Eberspächer Exhaust Technology GmbH & Co. KG, for their support with this article.