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 and Konstandopoulos and Johnson 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

Media Info

Subject/Index Terms

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