An Investigation On Performance Of Diesel Engine Using Biodiesel-Butanol Blends Fuel

This paper investigate the effect of butanol–biodiesel blends on performance characteristics of a four-stroke, naturally aspirated, water-cooled, direct injection compression ignition engine. The blended fuel properties of were reviewed based on calorific value, viscosity, density and latent heat value, the advantages and disadvantages of blended fuel was determined. The testing was performed with comparing butanol blended with biodiesel 10% butanol in volume basic (Bu10) and B5 biodiesel (B5). The engine performance combustion (pressure cylinder, rate of heat release, cumulative heat release and heat supplied to engine) were examined at engine speed of 1000-2500 r/min for the blend rate and base fuel. The engine load influenced the performance of the engine with an increase in loads will increase the pressure at combustion chamber during compression process. In addition, engine performance of dual alcohol/diesel blends was compared with base fuel. However, the result showed a decrease in engine performance when engine were operated with alcohol fuel blends compared to base fuel due to a decrease in the temperature of internal combustion process.

Keywords: n-butanol, biodiesel, diesel engine, engine loads, blended fuel