Numerical Investigations of Deposit Formation in SCR Systems
Date: 
Tuesday, March 31, 2015
Description: 

Selective Catalytic Reduction (SCR) is widely used within industry to help meet the challenging nitric oxide (NOx) emission requirements for diesel engines. There are a number of important criteria necessary for designing an efficient SCR system, including fast mixture preparation of the liquid urea-water solution and high ammonia uniformity at the SCR device.

However, one problem that threatens the life and performance of the system is urea deposit formations. The deposits can generate backpressure, material deterioration causing decrease in engine and emission performance of the SCR device.

The use of simulation to optimize the design of SCR devices is allowing engineers to improve NOx and deposit reduction, necessary for complying with standards.

This webcast will cover new modeling techniques to improve calculations and overall accuracy of the devices. Presenters show how CFD enables engineers to better understand the complex interactions between the liquid phase, the turbulent flow field, the hot surfaces of the exhaust system and the impact on deposit formation.

Speaker: 
Frederick J. Ross
Thomas Lauer
Stefan Hermann
Speaker Company: 
CD-adapco
Vienna University of Technology