Performance of the emulsified fuel with different ratios in a diesel engine

Abstract Diesel engines are employed as the major propulsion power source because of their simple, rigid structure and high-fuel economy. It is expected that diesel engines will be widely used in the foreseeable future. However, the increase in usage of diesel engines causes the shortage of fossil fuel and a greater degree of bad pollution. To regulate the above, identifying an alternate fuel to the diesel engine with less pollution is essential. In this research work, emulsified fuels were prepared with different ratios based on the diesel-ethanol blending. The experiment was conducted in a single cylinder diesel engine. Emulsified diesel fuels of 10, 20, 30 and 40 ethanol/diesel ratios by volume were used in the engine, which was run at constant speed of 1500 rpm. The result shows a marginal increase in brake thermal efficiency, exhaust gas temperature, specific fuel consumption and also reduction of smoke density. The oxides of nitrogen and particulate matter seem to increase slightly, when compared to the neat fuel.