PERFORMANCE AND EMISSIONS ANALYSIS OF ETHANOL-DIESEL BLENDS ON VCR C.I. ENGINE

Abstract

In this work an experimental Investigation on Performance and Emissions Analysis of the various blends of ethanol with diesel on a variable compression ratio diesel engine was carried out. The blends of ethanol, diesel and n-butanol are prepared in the volume percentages of 5 to 30% of ethanol with diesel, and with a fixed percentage of 5% of n-butanol as a solvent. The experimental tests were carried out to study the performance and emissions of the engine fuelled with these blends of ethanol and diesel at different compression ratios 14, 16 and 18 at different loads. The test results show that it is feasible and applicable for the blends with n-butanol to replace pure diesel as a fuel for diesel engine,the thermal efficiencies of the engine fuelled by these blends were comparable with that fuelled by diesel. The results show that fuel consumption is increased slightly, which is due to the lower heating value of ethanol. The characteristics of the emissions were also studied. And...