Pressure Drop Characteristics in NO2 Assisted Regeneration Process of Continuous Regeneration-Diesel Particulate Filter

摘要

Taking Continuous Regeneration-Diesel Particulate Filter (CR-DPF) as the research objective, the one-dimensional mathematical model of the NO2 assisted thermal-regeneration was developed and verified by experiments as well as numerically solved. Furthermore, the influence of pressure drop characteristics in assisted regeneration process of CR-DPF resulting from exhaust airflow and filter structure was also analyzed and researched in this paper. The results showed that：(1) The pressure drop would be decreased by appropriately increasing air displacement at low air displacement；(2) The pressure drop would be increased as increasing temperature and NO2 concentration in exhaust airflow；(3) The pressure drop would be markedly reduced.as increasing NO2 and O2 concentration in exhaust airflow.