Browse Publications Technical Papers 2002-01-1161
2002-03-04

Phenomenological Analysis of Injection, Auto-Ignition and Combustion in a Small DI Diesel Engine 2002-01-1161

A new phenomenological analysis of injection and combustion is established in an 4-cylinders DI Diesel engine of the production size class equipped with an inclined 5 holes injector. Measurements are performed at representative engine conditions for partial load.
In a first part, the penetration of the liquid diesel fuel phase is visualized in the whole combustion chamber by simultaneous Laser Induced Fluorescence (LIF) and Mie scattering techniques. The experiments have revealed the influence of the injection timing on the spray penetration and dynamic. The interactions “spray/air motion” and “spray/combustion chamber” are analyzed along with the injection technology influence.
In a second part, the auto-ignition and combustion are analyzed by a time resolved direct imaging of the chemiluminescence process. Experiments based on the correlation of two separated images of the combustion phenomena in a single cycle have allowed a detailed comprehension of spatial and temporal description of the auto-ignition and reaction zones development. Several auto-ignition sites are revealed in the vicinity of the injector nozzle. The reaction zones are shown to develop independently and then to merge to a unique one in the whole combustion chamber. Finally the flame is convected by air motion in the cylinder.

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

Identifying the Driving Processes of Diesel Spray Injection through Mixture Fraction and Velocity Field Measurements at ECN Spray A

2020-01-0831

View Details

TECHNICAL PAPER

The Response of a Closed Loop Controlled Diesel Engine on Fuel Variation

2008-01-2471

View Details

TECHNICAL PAPER

Fuel and Flame Imaging in SI Engines

930871

View Details

X