Browse Publications Technical Papers 2009-01-1855
2009-06-15

Injection Strategies for Operational Improvement of Diesel Dual Fuel Engines under Low Load Conditions 2009-01-1855

Diesel Dual Fuel (DDF) operation is a promising alternative engine operating mode. Previous research studies have reported a DDF engine operating under low load conditions suffers from high HC emissions, mostly Methane. The current study investigated the use of a multiple direct injection strategy for improvement of low-load DDF operation in a commonrail direct injection single-cylinder diesel engine. Natural gas was supplied at 70% of energy replacement ratio.
Results indicated that depending on engine conditions, a double-pulse injection had potential for combustion control and provided an effective way to reduce NOx and methane emissions. Moreover, the double-pulse injection helped improve the combustion stability, reduce the pressure rise rate, and decrease the maximum cylinder pressure, compared to DDF operation with a single pulse injection. Under low load conditions, the tuned injection strategies demonstrated significant operational improvement comparing with a simple DDF conversion that used the same injection timings as that of conventional diesel operations.

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

Spray Model Based Phenomenological Combustion Description and Experimental Validation for a Dual Fuel Engine

2017-24-0098

View Details

TECHNICAL PAPER

Towards Model-Based Control of RCCI-CDF Mode-Switching in Dual Fuel Engines

2018-01-0263

View Details

TECHNICAL PAPER

Combustion Noise Measurements and Control from Small Diesel and Dual Fuel Engines

2004-32-0072

View Details

X