1Professor, Department of Mechanical Engineering, College of Engineering, Kopargaon.
2Professor, Department of Production Engineering, Shri Guru Gobindsinghji Institute of Engineering and Technology, Nanded, India.
*Email: nagarhalli@rediffmail.com
Experimental work has been carried out to analyze the emission and performance characteristics of a single cylinder 3.67 kW, compression ignition engine fuelled with mineral diesel and dieselKaranja biodiesel blends at fuel injection pressures of 190 bar, 200 bar and 210 bar. The brake thermal efficiency, brake specific energy consumption (BSEC) are calculated and the emissions measured were carbon monoxide (CO), carbon dioxide (CO2), hydrocarbon (HC), and oxides of nitrogen (NOx). The results of experimental investigation with biodiesel blends are compared with that of baseline diesel. The results indicate that the CO emissions were almost constant, HC emissions decreased by upto 25% for B40, NOx emissions decreased by 3039% for biodiesel blends. The efficiency decreased slightly for blends in comparison with diesel. The BSEC was slightly more for B20 and B40. The results of the investigation indicate that biodiesel can be used as an alternative to diesel in a compression ignition engine without any engine modifications. The performance of the engine improved at a biodiesel blend of 40% and an injection pressure of 200. The use of locally available renewable fuel helps in saving vital foreign exchange and self reliant.
Karanja biodiesel, emissions, BSEC, foreign exchange
