1993-09-01

Optimum Injection Timings of Gas-Oil and Methanol in Dual Fuel CI Engine 932479

The engine performance, combustion characteristics and the effect of injection timing differences of a prechamber-type diesel engine operated by Diesel-fuel and methanol were investigated. When the Diesel-fuel is used as a pilot fuel, the ignition lag was mainly controlled by the Diesel-fuel.
The maximum thermal efficiency occurs with the optimum main methanol injection timing. The optimum methanol injection timing is about 2 to 3 degrees crank angle before the ignition, as methanol vapor is required for smooth combustion. This was determined from results showing that the methanol combustion was initiated by flame propagation from the combustion of Diesel-fuel. It is advantageous that parts of the Diesel-fuel and methanol sprays be mixed.

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

Experimental Study of Using EGR to Raise the Thermal Ratio of Methanol to Diesel Fuel in Diesel Engine

931950

View Details

TECHNICAL PAPER

Dual Fuel Injection Nozzle for Methanol Fueled Compression Ignition Engine Operation

912357

View Details

TECHNICAL PAPER

Simulating Analysis of Methanol Combustion Process and Variations of Cycle to Cycle in Diesel Engine

2001-01-1985

View Details

X