Browse Publications Technical Papers 2007-01-0477
2007-04-16

Analysis and Prediction of Unburned HCs in a Lean-Burn Engine 2007-01-0477

Three-dimensional combustion simulation tools together with the Universal Coherent Flamelet Model (UCFM), a flame propagation model, have been applied to SI lean-burn combustion to study the influence of the equivalence ratio on the amount of unburned hydrocarbons (HCs). Unburned HCs from piston-cylinder crevices were taken into the consideration by using a calculation grid incorporating the actual crevice volume and shape and by applying an autoignition model to post-flame phenomena. The calculation results show the general tendencies for the total amount of unburned HCs and their distribution in the combustion chamber.

SAE MOBILUS

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

Access SAE MOBILUS »

Preview Document Add to Cart
Members save up to 16% 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

Numerical Prediction of Charge Distribution in a Lean Burn Direct-Injection Spark Ignition Engine

970626

View Details

TECHNICAL PAPER

The Effect of NOx on Knock in Spark-ignition Engines

1999-01-0572

View Details

TECHNICAL PAPER

Effects of Combustion Chamber Deposits, Compression Ratio and Combustion Chamber Design on Power and Emissions in Spark-Ignition Engines

972886

View Details

X