1 Day
I.D.#C0235
Designing more efficient and robust emission control components
and exhaust systems results in more efficient performance, reduced
backpressure and fuel penalty, and higher conversion efficiency.
This course will help you to understand the motion of exhaust flow
in both gasoline and diesel emission control components including
flow-through and wall-flow devices such as catalytic converters, NOx
adsorbers, diesel oxidation catalysts, diesel particulate filters as well as
flow through the overall exhaust system. Discussions will also cover:
flow recirculation in inlet cones, flow maldistribution and its effect on
conversion efficiency in flow throughs, non-uniform particulate deposit
in diesel filters, and roots of non-uniformity in flow distribution due to
exhaust system design such as bends.
Learning Objectives
By attending this seminar, you will be able to:
Describe how exhaust stream is distributed in flow-throughs
in gasoline or in diesel emission components and in wall-flow
components (catalytic converters, NOx adsorbers, DOC, diesel
particulate filters), including in inlet cones, exit cones, bends,
elbows, flow constrictions, and in other components of an exhaust
system
Design exhaust systems yielding higher conversion efficiency, lower
backpressure, faster light-off, and optimal performance
Design diesel particulate filter systems yielding more uniform soot
distribution in filters, thus lowering both filter backpressure and its
peak regeneration temperature
Describe connections between flow distribution and thermal
performance such as light-off and radial and axial temperature
gradients
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