Browse Publications Technical Papers 2000-01-0477
2000-03-06

Some Empirical Observations on Diesel Particulate Filter Modeling and Comparison Between Simulations and Experiments 2000-01-0477

Comparisons between 1D simulations and experiments on a mini scale SiC filter are presented.
First of all, experiments with regeneration for different loading mass and soot composition enabled us to derive an improved pressure drop correlation. The assumption of constant particulate layer permeability proves unable to predict the influence of the gas temperature on the pressure drop. This discrepancy seems to be linked to the high Knudsen number of the flow in the particulate layer. A new correlation is proposed. This correlation contains four adjustable constants which have been determined on a single experimental run. Without modifying these constants, other cases have been correctly simulated. Obviously, more work is needed to substantiate this approach.
In a second step, regenerations with and without additive (Cerium) for two different soot compositions have been simulated and compared with experimental results. Soluble Organic Fraction vaporization has to be taken into account to obtain the right soot mass when regeneration begins. The experimental trend is well captured by numerical simulations.

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.

Due to current capacity constraints, printed versions of our publications - including standards, technical papers, EDGE Reports, scholarly journal articles, books, and paint chips - may experience shipping delays of up to four to six weeks. We apologize for any inconvenience.
We also recommend:
TECHNICAL PAPER

Soot Incineration of Diesel Particulate Filter Using Honeycomb Nonthermal Plasma

2003-01-1886

View Details

TECHNICAL PAPER

Pressure Drop of Segmented Diesel Particulate Filters

2005-01-0971

View Details

TECHNICAL PAPER

Development and Optimization of Ceramic-Based Diesel Particulate Filter for Utility Vehicle

2005-26-018

View Details

X