The Current situation of petroleum products pressurizes the world to shift towards green fuels. Dimethyl carbonate (DMC) could be considered as high oxygenated, green additive. Adding DMC in biodiesel increases the quality of combustion, hence reducing emissions with improved thermal efficiency. In the present study, DMC has been blended with biodiesel along with 10% Exhaust Gas Recirculation (EGR) and then performance and emission analysis was done. Results show higher Brake Thermal efficiency with 5% DMC in the biodiesel-diesel blend as compared to biodiesel, but lower than that with diesel. Brake Specific Energy Consumption increases with the increase in DMC in the fuel blend at medium and higher loads, which limits the use of DMC in higher content (10%, 15%). Carbon Mono-oxide and Hydrocarbon emissions reduce with lower content of DMC (5%) at a higher load. There are slight increases in Carbon Di-Oxide at all loads, under the safe limit. The emission of Oxides of Nitrogen (NOx) decreases slightly and this decrease increases with EGR. Higher content of EGR adversely affects the performance and emission characteristics except for NOx and smoke emission. A large decrease in smoke was noted with DMC as an additive in biodiesel due to improved combustion.
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