Browse Publications Technical Papers 2004-01-1492
2004-03-08

Effect of Thermal Mass on Aging and Emissions Performance 2004-01-1492

This paper seeks to accomplish two objectives. The first is to understand the emissions performance of the newest experimental substrates. The second is to verify or refute the hypothesis that a higher cell density part will age more severely in the same conditions than the lower cell density part. This paper will also seek to identify when during aging this occurs and the shape of the curve of performance loss for each cell density.
Three configurations including thinwall and ultra-thinwall cell geometries were tested. The test consisted of five repeated iterations in partial aging and testing, up to 100 hours of aging. The steps were in uneven increments to gain the most knowledge about the aging curve. Testing was performed after each partial aging step on a chassis dynamometer ULEV vehicle using the 3 bag FTP protocol. Data was examined on the basis of emissions performance and temperatures for each aging step, providing information to optimize substrate selection in automotive applications.

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

Emission Systems Optimization to Meet Future European Legislation

2004-01-0138

View Details

TECHNICAL PAPER

The Potential for Achieving Low Hydrocarbon and NOx Exhaust Emissions from Large Light-Duty Gasoline Vehicles

2007-01-1261

View Details

TECHNICAL PAPER

An Integrated Simulation Model for the Prediction of GDI Engine Cylinder Emissions and Exhaust After-Treatment System Performance

2004-01-0043

View Details

X