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http://dx.doi.org/10.7467/KSAE.2014.22.5.073

CFD Analysis on Gas Injection System of Solid SCR for NOx Reduction of Exhaust Emissions in Diesel Engine  

Lee, Hoyeol (Department of Mechanical Engineering, Graduate School, Hannam University)
Yoon, Cheon Seog (Department of Mechanical Engineering, Hannam University)
Kim, Hongsuk (Engine Research Center, Korea Institute of Machinery and Materials)
Publication Information
Transactions of the Korean Society of Automotive Engineers / v.22, no.5, 2014 , pp. 73-83 More about this Journal
Abstract
CFD(computational fluid dynamics) model is developed to simulate direct injection of ammonia gas phase from ammonia transporting materials into the SCR catalyst in the exhaust pipe of the engine with solid SCR. Configurations of one-hole and four-hole nozzle, circumferential type, porous tube type, and the effect of mixer configurations which commonly used in liquid injection of AdBlue are considered for complex geometries. Mal-distribution index related to concentration of ammonia gas, flow uniformity index related to velocity distribution, and pressure drop related to flow resistance are compared for different configurations of complex geometries at the front section of SCR catalyst. These results are used to design the injection system of ammonia gas phase for solid SCR of target vehicle.
Keywords
Solid SCR; Gas injection system; CFD; Mal-distribution index; Flow uniformity index; Pressure drop;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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