Abstract To study the effects of residual ash on the capture and regeneration of a diesel particulate filter (DPF), repeated capture and complete regeneration experiments were conducted. An engine exhaust particulate sizer was used to measure the particle size distribution of diesel in the front and back of DPF. Discrepancies in the size distribution of the particulate matter in repeated trapping tests were analyzed. To achieve complete DPF regeneration, a DPF regeneration system using nonthermal plasma technology was established. The regeneration carbon removal mass and peak temperatures of DPF internal measuring points were monitored to evaluate the effect of regeneration. The mechanism explaining the influence of residual ash on DPF capture and regeneration was thoroughly investigated. Results indicate that the DPF trapping efficiencies of the nuclear-mode particles and ultrafine particles have significant improvements with the increase quantity of residual ash, from 90 % and 96.01 % to 94.17 % and 97.27 %, respectively. The exhaust backpressure of the DPF rises from 9.41 kPa to 11.24 kPa. Heat transfer in the DPF is improved with ash, and the peak temperatures of the measuring points accordingly increase. By comparing the regeneration trials, the elapsed time for complete regeneration and time difference for reaching the peak temperature between adjacent reaction interfaces are extended with increased quantity of ash. The carbon removal mass rises by 34.00 %.
Effects of Residual Ash on Dpf Capture and Regeneration
International Journal of Automotive Technology ; 19 , 5 ; 759-769
2018-09-12
11 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Effects of Residual Ash on Dpf Capture and Regeneration
Online Contents | 2018
|Postcombustion CO2 Capture for Combined Cycles Utilizing Hot-Water Absorbent Regeneration
Online Contents | 2012
|Investigation of LNT Regeneration Strategy for Diesel Engines with High Internal Residual Gas Rates
Springer Verlag | 2021
|Determinants of residual effects of hypnotics
Elsevier | 1985
|