Effects of different alternative fuels engine performance and emissions

Diesel engines are widely used in both land and sea transportation due to lower fuel consumption. However, the harmful nitrogene oxide (NOx) and soot emissions from diesel engines are threatening human health. A lot of research done to reduce diesel emissions. Diesel emulsion fuels that are containing specific proportions of water, can reduce harmful exhaust emissions significantly. Therefore, emulsion fuels has been one of the important research area in recent years. In this study, effects of the emulsion fuels, wich are contain 5% (E5) and 10% (E10) water, on engine performance and exhaust emissions have been investigated at full load and different brake mean effective pressures at three engine speeds (2500, 3250 ve 4000 min-1). Unlike the otherstudies, 1 % auxilary emulgator mono ethylene glycol has been used as solvent to water. While the E5 emulsion was partially reducing the exhaust emissions, therewere not significant influence on engine performance. Using E10 emulsion at full loadreduced carbon monoxide (CO), NOx and soot emissions 44,7%, 5% and 47% respectively. CO, NOxand soot emissions reduced 6,02%, 11,01% and 22,97% averagely in the experiments depending on engine load at 2500 min-1.