Technical Paper
Effect of Different Ethanol-Gasoline Blends on Exhaust Emissions and Fuel Consumption
2012-04-16
2012-01-1273
Ethanol fuel is a sustainable energy resource that is intended to provide a more environmentally and economically friendly alternative to petroleum-based fuels, such as gasoline. Recent interest in ethanol has increased due to the fact that it can be combined with gasoline at different percentages: from low percentages with not specially modified gasoline vehicles up to 85% of ethanol, and even up to 100%, in flexible-fuel vehicles. There is much debate and a considerable amount of concern among automakers and consumers regarding the environmental friendliness of ethanol, mainly due to the lack of complete knowledge about the effects of its use on direct pollutants from exhaust vehicle emissions such as CO, CO₂, NOx, HCs and particulates and on the fuel consumption of the vehicle.