Experimental Investigation of Performance and Emission Characteristics of Diesel Engine Working on diesel with Neem Biodiesel and Ethanol Blend with EGR

The present investigation was to study the compression ignition (CI) engines with neem biodiesel along with ethanol and different percentage of exhaust gas recirculation (EGR) for analyzing the emission characteristics. In this experiment, the EGR percentage was varied from 0% to 20% in a four-stroke, air-cooled, single cylinder, diesel engine capable of developing 5.2 kW-rated power to study its emission characteristics, which were clearly compared with diesel fuel. From the experiment, it is observed that the increase in EGR percentage in fresh mixture which results reduction in oxides of nitrogen emissions. The maximum percentage reduction in oxides of nitrogen, when compared to pure diesel operation. By using an ethanol for reduction in emission of hydrocarbons, carbon monoxide for various EGR rate.