Emission and Performance Investigation on CI Engine by Using Soybean Methyl Ester with Ethanol Additive

This Paper presents the performance and emission analysis of diesel engine by using soybean methyl ester. In this work, the various percentage of soybean methyl ester has been blended with diesel fuel to carry out experiments, by adding 1%, 3% and 6% of ethanol in 20% soybean methyl ester with 80% diesel mixture. The addition of 20% soybean methyl ester alone increases the emission of CO2 significantly when compared with the emission of CO. The earlier can be minimized considerably by adding ethanol in different concentrations, meanwhile the later increases minimally. The emission of HC follows in a similar fashion like CO. The B20 fuel blend treats the NOx emission positively, which can further be reduced by ethanol addition of 1%, 3%, and 6%. In addition to this, the smoke can also be reduced by adding soybean methyl ester in diesel oil and further decreased by adding ethanol additive in B20. The entire effort impacts the performance of Compression Ignition engine closer to that of diesel. The addition of ethanol as an additive in biodiesel-diesel blend could be controlled the NOx emission and global warming through the reduction of CO2.