The presented work evaluates several mixer designs being considered for use in large Diesel exhaust aftertreatment systems. The mixers are placed upstream of a diesel oxidation catalyst (DOC) in the exhaust system, where a liquid hydrocarbon fuel is injected. DOC exothermic behaviour resulting from each mixer at different operating conditions is evaluated. A gas flow bench equipped with a XY-Table measurement system is used to determine gas velocity, temperature, and hydrocarbon species uniformity, as well as, pressure drop. Experimental mixer data obtained from a flow bench and an engine dynamometer are compared and discussed. The experimental methodology used in this study can be used to evaluate mixers via comprehensive testing.
Evaluation of Mixer Designs for Large Diesel Exhaust Aftertreatment Systems
Sae Technical Papers
SAE 2010 Commercial Vehicle Engineering Congress ; 2010
2010-10-05
Aufsatz (Konferenz)
Englisch
Diesel Exhaust Aftertreatment - Materials and Systems
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