Exhaust emissions of methanol and ethanol-unleaded gasoline blends in a spark ignition engine
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CitationAltun, Ş, Öztop, H., Öner, C., Varol, Y. (2013). Exhaust emissions of methanol and ethanol-unleaded gasoline blends in a spark-ignition engine. Thermal Science, 17(1), 291-297. https://doi.org/10.2298/tsci111207034a
In this study, the effect of unleaded gasoline and unleaded gasoline blended with 5% and 10% of ethanol or methanol on the performance and exhaust emissions of a spark-ignition engine were experimentally investigated. The engine tests were performed by varying the engine speed between 1000 and 4000 rpm with 500 rpm period at three-fourth throttle opening position. The results showed that brake specific fuel consumption increased while brake thermal efficiency, emissions of carbon monoxide and hydrocarbon decreased with methanol-unleaded gasoline and ethanol-unleaded gasoline blends. It was found that a 10% blend of ethanol or methanol with unleaded gasoline works well in the existing design of engine and parameters at which engines are operating.
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