Modelling Pressure Losses in Gasoline Particulate Filters in High Flow Regimes and Temperatures

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.

Language

  • English

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Filing Info

  • Accession Number: 01743314
  • Record Type: Publication
  • Source Agency: SAE International
  • Report/Paper Numbers: 2019-01-2330
  • Files: TRIS, SAE
  • Created Date: May 4 2020 3:29PM