Investigations on the effect of bio fuel enhancer additive with cashew nut shell liquid biodiesel blends on engine performance and pollutant emissions in a diesel engine

The purpose of this study is to investigate the impact of bio fuel enhancer additive added to 20% cashew nut shell liquid (CNSL) biodiesel blended with No.2 diesel fuel, in terms of the performance and exhaust emissions on a 4-cylinder naturally-aspirated direct-injection diesel engine. Experiments were conducted under five engine loads at a steady speed of 1500 rpm. The influence of blends on carbon monoxide (CO), nitrogen oxide (NO), carbon dioxide (CO2), hydrocarbon emission and smoke opacity were investigated.. The experimental results showed that the bio fuel enhancer additive improves the performance parameters and decreases CO emission by 13% and HC emission by 15% as compared to biodiesel. Bio Fuel Enhancer (BFE) additive reduces the NO emission remarkably by 55% as compared to biodiesel.