Browse Publications Technical Papers 2003-01-0939
2003-03-03

Modeling and Measuring Exhaust Backpressure Resulting from Flow Restriction Through an Aftertreatment System 2003-01-0939

This paper describes the pressure loss characteristics of a variety of substrates (with and without washcoat) that have different cell densities, lengths, and diameters. Both experimental and analytical approaches were used to determine pressure loss characteristics. Engine dynamometer testing was conducted as an experimental approach to measure pressure losses at several different speed and load points. A simple, but comprehensive, analytical model was also developed to estimate pressure loss and equivalent power loss in an exhaust system. The model provides for losses due to the substrate resistance and the inlet/outlet headers. The experimental approach demonstrated that the model was an effective tool to provide assistance during the screening of exhaust system design alternatives.

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

Effect of Aging and Testing Conditions on Catalyst Performance

911734

View Details

TECHNICAL PAPER

Sources of Monolith Catalytic Converter Pressure Loss

912372

View Details

TECHNICAL PAPER

Modeling and Simulation of a Two-Stage Pressure Reducing Valve

820488

View Details

X