Study on combustion and emission of diesel engine using micro-emulsified ethanol-diesel fuel

The study was aimed at determining the influence of Micro-emulsified ethanol-diesel fuel on specific fuel consumption, heat release rate and emissions of engine. The engine tests were performed on a four-cylinder, water-cooled, natural aspirated diesel engine. Using E0 (neat diesel fuels), E6(S), E11(S) and E11(C). The result showed that thermal efficiency and exhaust emission (NOx and smoke) of micro-emulsified ethanol-diesel fuel were higher than diesel. While the specific fuel consumption, CO and HC emission of micro-emulsified ethanol-diesel fuel were higher than that of diesel. The particle sizes of emulsified ethanol fuels was larger than that of diesel fuel.