Abstract
In order to contribute positively to the environmental and human health sensitivity, it is necessary to fight to reduce emissions of the diesel-induced pollutant. Ethanol is providing the notable potential to reduce particulate emissions in diesel engines since ethanol has lower carbon content than diesel fuel and it is oxygenated. In the present study, the effects of ethanol fumigation on engine performance and combustion characteristics and pollution emissions were investigated experimentally at eleven different engine speed in a turbocharged three-cylinder tractor diesel engine. The injector placed for spraying on the intake manifold was controlled by the ECU board developed as Arduino-based and the engine was driven with dual fuel. It was detected that cylinder gas pressure increased at the beginning of the combustion process and decreased during the last phase of combustion. The experimental results of the engine performance indicated for the ethanol fuel are higher than that of diesel fuel. HC emissions have declined considerably, and NOx emissions have decreased compared to diesel fuel at high speed.