This study presents a one-dimensional model for the prediction of the pressure loss across a wall-flow gasoline particulate filter (GPF). The model is an extension of the earlier models of Bissett [1] and Konstandopoulos and Johnson [2] to the turbulent flow regime, which may occur at high flow rates and temperatures characteristic of gasoline engine exhaust. A strength of the proposed model is that only one parameter (wall permeability) needs to be calibrated. An experimental study of flow losses for cold and hot flow is presented, and a good agreement is demonstrated. Unlike zero-dimensional models, this model provides information about the flow along the channels and thus can be extended for studies of soot and ash accumulation, heat transfer and reaction kinetics.
Modelling Pressure Losses in Gasoline Particulate Filters in High Flow Regimes and Temperatures
Sae Technical Papers
2019 JSAE/SAE Powertrains, Fuels and Lubricants ; 2019
19.12.2019
Aufsatz (Konferenz)
Englisch
Modelling Pressure Losses in Gasoline Particulate Filters in High Flow Regimes and Temperatures
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