PM Trapping and Oxidation in Diesel Particulate Filter with Catalyst by Numerical Calculation of One-dimensional Model
- Other Title
In this study, we proposed a numerical method to estimate the behavior of PM distribution in DPF both in PM-deposition and regeneration process. In the result, we found that PM oxidation was occasionally incomplete and partially remained in the DPF even if the PM deposition-regeneration process was repeated in the DPF. In such case, the phenomenon that the oxygen supply slightly decreased towards the rear part of the DPF was found, so that the remained PM in the DPF induced the new PM deposition. By using a novel model, PM deposition distribution and modeling of the oxidization reaction, where deposition-regeneration is especially repeated within DPF, could be performed and time-dependent behavior of pressure loss was considered. The present modeling will make possible suggest the required timing which performs compulsive reproduction control of DPF.
- Transactions of Society of Automotive Engineers of Japan
Transactions of Society of Automotive Engineers of Japan 51 (2), 238-243, 2020
Society of Automotive Engineers of Japan