Browse Publications Technical Papers 2009-01-1787
2009-06-15

Engine Impacts and Opportunities of Various Fuels, Including GTL and FAME: Toward Specific Engine Calibration? 2009-01-1787

World wide, energy policy makers are increasingly keen to move away from petroleum based fuels to more diverse and renewable sources of energy for reasons of environmental protection, energy security and continued economic development. A well-known example is Gas-To-Liquid (GTL) diesel fuel which is derived from natural gas and thus provides a diversification away from crude oil, which is the feedstock for 97% of the world transport fuels. Towards the same goal, Fatty Acid Methyl Esters (FAME), from vegetable oils, recycled oils, or animal fat, are being used with increasing frequency as blends with diesel fuel, even at a concentration of 30% in some captive fleets (B30). In this paper, the impacts on engine pollutant emissions and performance are evaluated. The chemical properties of these diesel fuels can offer several benefits in terms of more favourable NOx/PM trade-offs (GTL and B30), lower CO2 emissions, and higher performance (GTL), but a specific engine calibration for each of these fuels is needed to fully take advantage of these benefits. This raises an important issue, namely, what the effect would be on the engine emissions and performance with such calibrations when switching back to regular diesel fuels. It is, however, shown that some of these benefits may already be achieved by engine control solutions while keeping the initial engine calibration based on regular diesel fuel.

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

Exhaust Emission Characteristics of Commercial Vehicles Fuelled with Biodiesel

2010-01-2276

View Details

TECHNICAL PAPER

Comparison of Emissions and Fuel Economy Characteristics of Conventional, Additized, and Substantially Synthetic Diesel Fuels in a Heavy-Duty Diesel Engine

2002-01-1702

View Details

TECHNICAL PAPER

Reactivity Comparison of Exhaust Emissions from Heavy-Duty Engines Operating on Gasoline, Diesel, and Alternative Fuels

952442

View Details

X