A 2-D Diesel Particulate Regeneration Model
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چکیده
Diesel particulate filter (DPF) has been widely applied as the efficient way to reduce the soot emissions from diesel engines. The oxidation of the accumulated soot layer in the particulate filter, known as DPF regeneration, plays a crucial role in the diesel engine operation. It is important to understand the characteristics and fundamentals of this process. A 2D timedependent diesel particulate filter (DPF) regeneration model has been formulated through FEMLAB multiphysics. Momentum balances, mass balance, energy balance and catalytic chemical reactions have been considered in this model. The distributions of exhaust species concentration, bulk gas temperature, soot layer thickness along the filter channel have been investigated. The sensitivity of the soot layer thickness distribution relative to the exhaust temperature has also been analyzed.
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Diesel Particulate Filters [subscription]
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