Altun, ŞehmusÖztop, Hakan FehmiÖner, CengizVarol, Yasin2019-06-212019-06-212013Altun, 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/tsci111207034a0354-9836https://doi.org/10.2298/tsci111207034ahttps://hdl.handle.net/20.500.12402/2088In 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.eninfo:eu-repo/semantics/openAccessAttribution-ShareAlike 3.0 United StatesEngine PerformanceEthanolExhaust EmissionsMethanolArticle171291297Q3Q2