Browse Publications Technical Papers 2001-01-0908
2001-03-05

Spatial Non-Uniformities in Diesel Particulate Trap Regeneration 2001-01-0908

Diesel particulate trap regeneration is a complex process involving the interaction of phenomena at several scales. A hierarchy of models for the relevant physicochemical processes at the different scales of the problem (porous wall, filter channel, entire trap) is employed to obtain a rigorous description of the process in a multidimensional context. The final model structure is validated against experiments, resulting in a powerful tool for the computer-aided study of the regeneration behavior. In the present work we employ this tool to address the effect of various spatial non-uniformities on the regeneration characteristics of diesel particulate traps. Non-uniformities may include radial variations of flow, temperature and particulate concentration at the filter inlet, as well as variations of particulate loading. In addition, we study the influence of the distribution of catalytic activity along the filter wall. Despite the complexity of the process and the many factors that influence it, the computational tools developed make it feasible to undertake a systematic optimization of these factors for the development of the next generation of diesel particulate trap systems.

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

Fatigue and Performance Data for Advanced Thin Wall Ceramic Catalysts

980670

View Details

TECHNICAL PAPER

Development of DPF System for Commercial Vehicles (Second Report) - Active Regenerating Function in Various Driving Condition -

2005-01-3694

View Details

TECHNICAL PAPER

Size Effect on the Strength of Ceramic Catalyst Supports

922333

View Details

X