Browse Publications Technical Papers 2012-36-0474
2012-10-02

Gasoline-Ethanol Combustion Study in a Rapid Compression Machine 2012-36-0474

Combustion images are not simple to be obtained in conventional engines. Therefore, some experimental apparatus, such as a rapid compression machine (RCM), are useful to conduct this kind of study. Imaging techniques allow flame front propagation analysis, which is a very important parameter to understand engine performance, using different fuels and also to generate data to improve fuel modeling in engine simulation softwares.
A RCM was adapted to operate in a spark ignition engine mode. It was used to obtain cylinder pressure measurements of gasoline-ethanol combustion synchronized with high-speed photos of flame propagation. Contour plots of the flame front profiles, assumed to be spherical, were used in successive frames to calculate the propagation speeds toward the cylinder walls. So, it was possible to correlate images, pressure curves and flame speeds of gasoline-ethanol blends.
The results obtained with this device will be used in the future to make correlations with engine tests. The objective is to develop a new methodology that can lead to the engine tests, resources and cost reduction in fuel development processes.

SAE MOBILUS

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

Access SAE MOBILUS »

Members save up to 17% 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 Engine and Fuel Variables on Liquid Fuel Transport into the Cylinder in Port-Injected SI Engines

1999-01-0563

View Details

TECHNICAL PAPER

ECU Integrated DSP Based Measurement System for Combustion Analysis

2000-01-0547

View Details

JOURNAL ARTICLE

Model-Based Control-Oriented Combustion Phasing Feedback for Fast CA50 Estimation

2015-01-0868

View Details

X