Experimental Investigation of CI engine performance and emission characteristics by effect of Nano fuel additives in Pongamia Pinnata biodiesel

The effect of Nano fuel additives on the performance and emission characteristics of CI engine fueled with a blend of Pongamia pinnata biodiesel and diesel. The ball milling process is used to prepare the Nano rhodium oxide (Rh2O3) particles. The Nano rhodium oxide (Rh2O3) particle size is characterized by using scanning electron microscope (SEM). The Nano rhodium oxide size obtained in the range of 100 NM. The Nano Rhodium oxide is circulated in the biodiesel with the help of magnetic stirrer with the surface concentration. Various proportions of Pongamia biodiesel blends (10%, 20% and 30%) were used for showing the performance and emission test at different load situations. A single cylinder, air cooled, direct injection diesel engine is used for the test. The addition of rhodium oxide Nano particles, with the biodiesel at different dosing levels of the additive showed an improvement in the efficiency of the engine. During combustion the additive release the energy in the fuel, reduce the energy consumption and improves the thermal efficiency. Metal additives quite effective in controlling NOx formation. With the help of fuel base metal additives is reduced HC emission and PM emission. The addition of Nano rhodium oxide additives in fuel it reduces NOx emission up to 17% at B20 when compare with B10 and B30. Also reduces the unburnt hydrocarbon (UBHC) up to 25% at B20.