Standard

SAE 2008-01-2608

Oct 2008 Current

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Abstract

The purpose of this study is to investigate the effects on the engine's efficiency and exhaust gas emissions by the use of ethanol/gasoline blends in conventional technology vehicles. The fuels E0, E10, E20 and E50 were tested in a 1300cc old technology vehicle without a catalytic converter. The measurements of the engine's brake torque, revolutions and fuel consumption were accomplished on a chassis dynamometer for different engine loads and with different gear ratios. Regarding the exhaust gas emissions, the concentrations of CO 2 , CO, HC and NO x were recorded. The results have shown that increasing the ethanol percentage in the blend has decreased the CO and HC emissions but increased the NO x emissions. For fuels E10 and E20 an increase on the engine's brake torque and power along with a decrease in fuel consumption were observed. For E50, both brake torque and power were reduced. The CO 2 emissions were increased as the ethanol concentration increased. The best overall results were obtained by using the E20 blend.

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Standard from SAE International
Published: October 7 2008
Document type: IS
Pages
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Publisher: SAE International
Distributor: SAE International

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Abstract

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