Browse Publications Technical Papers 2013-01-0520
2013-04-08

Passive Regeneration Response Characteristics of a DPF System 2013-01-0520

This study investigates the passive regeneration behavior of diesel particulate filters (DPFS) with various PGM loadings under different engine operating conditions. Four wall-flow DPFs are used; one uncoated and three wash-coated with low, medium, and high PGM loadings, with and without an upstream diesel oxidation catalyst (DOC). DPFs with variable pre-soot loads are evaluated at two steady state temperatures (300°C and 400°C), as well as across three levels of transients based on the 13-mode ESC cycle. Passive regeneration rates are calculated based on pre and post soot gravimetric measurements along with accumulated soot mass rates for specified exhaust mass flow rates and temperatures. Results illustrate the effect of temperature, NO₂ content, and soot loading on passive regeneration without upstream DOCs or DPF wash coatings. Passive regeneration rates are quantified across several engine operating conditions, comparing sensitivities and providing calibration inputs for backpressure response modeling, as demonstrated with GT Power.

SAE MOBILUS

Subscribers can view annotate, and download all of SAE's content. Learn More »

Access SAE MOBILUS »

Members save up to 18% off list price.
Login to see discount.
Special Offer: Download multiple Technical Papers each year? TechSelect is a cost-effective subscription option to select and download 12-100 full-text Technical Papers per year. Find more information here.
We also recommend:
TECHNICAL PAPER

DPF Soot Estimation Challenges and Mitigation Strategies and Assessment of Available DPF Technologies

2013-01-0838

View Details

JOURNAL ARTICLE

The Effect of HCHO Addition on Combustion in an Optically Accessible Diesel Engine Fueled with JP-8

2010-01-2136

View Details

JOURNAL ARTICLE

Model Based Engine Control Development and Hardware-in-the-Loop Testing for the EcoCAR Advanced Vehicle Competition

2011-01-1297

View Details

X