Experimental Investigation on the DPF High-Temperature Filtration Performance under Different Particle Loadings and Particle Deposition Distributions

Based on DPF filtration and regeneration bench, the solid particle emission high-temperature characteristics of different carbon black loadings deposition distributions are studied. The aerosol generator (PAlAS RGB 1000) is used to introduce particles into inlet a DPF, NanoMet3 meter measure concentration at outlet obtain characteristics. Previous studies found that without particles, there was an obvious peak deposited during heating, increased by 1–2 orders magnitude. In this paper, under steady-state temperature conditions It can reduce range fluctuating with increase temperature, proportion large in increases, size distribution decreases. Particle loading has positive negative effects filtration, optimal loading, which makes comprehensive efficiency improve highest. transition section make uniform, but reduced.