Browse Publications Technical Papers 2006-01-1977
2006-04-05

Experimental and Computational Investigation of PAH Production in a Diesel Engine as a Function of Load 2006-01-1977

The present work examines the correlation between PAH (Polycyclic Aromatic Hydrocarbon) formation and diesel engine load and the development of a corresponding reaction kinetics based model. The model developed simulates combustion using the partially stirred reactor model of Chemkin at conditions relevant to actual diesel engine operation, i.e. prescribed piston movement as a function of crank angle and adjustment of turbulence mixing intensity to match experimental cylinder pressure data.
Experiments were carried out for determination of: 1) pressure-crank angle history, and 2) measurements of the polycyclic aromatic hydrocarbons in the exhaust at each load condition. PAHs were collected with soot from a filter in the engine exhaust, extracted using supercritical carbon dioxide and quantified using GC/MS/MS (Gas Chromatography, Tandem Mass Spectrometry). The experimental data was obtained for napthalene, phenanthrene, acenaphthylene, anthracene, acenaphthene, fluoranthrene, fluorene, and pyrene. Model calculations were carried out for prediction of the exhaust components: benzene, naphthalene, phenanthrene and pyrene under relevant engine operating conditions. Then for the two common PAHs, comparisons were made between the data and model results; for naphthalene and phenanthrene, comparisons were good. Both data and model showed that as load decreases (leaner combustion), the production of PAHs increases.

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:
JOURNAL ARTICLE

Detailed Unburned Hydrocarbon Investigations in a Highly-Dilute Diesel Low Temperature Combustion Regime

2009-01-0928

View Details

JOURNAL ARTICLE

Influence of the Mixture Formation on the Lubrication Oil Emission of Combustion Engines

2010-01-1275

View Details

TECHNICAL PAPER

Effect of Spray-Wall Interaction on Air Entrainment in a Transient Diesel Spray

930920

View Details

X