Author : Manjunath Channappagoudra, K. Ramesh and Manavendra.G

Treating of dairy waste scum into fuel will be the very beneficial for milk dairies in terms of energy savings, reduction of hazardous emissions and independency on foreign fuels. This new approach of developing and utilization of dairy scum oil methyl ester is highly pronounced in the field of alternative fuels for diesel engines. In the present study experimental work attempts to unfold the influence of DSOME blends and injection timing (IT) on the performance, emission and combustion characteristics of diesel engine. In the first phase of experimental work effect of different blends namely DSOME-B10, DSOME-B20, DSOME-B30 and DSOME-B100 are studied and compared with petroleum diesel. In second phase of experimental work different injection timings namely 20.deg.bTDC, 23.deg.bTDC, 26.deg.bTDC and 29.deg.bTDC are studied and compared with standard engine. From first phase of experimental works its revealed that significant improvement of brake thermal efficiency, brake specific fuel consumption and reduced HC, CO emissions are observed for DSOME-B20 blend hence it is optimized and carried to the second phase of the work to optimize the injection timing. From second phase of experimental results it is concluded that 26.deg.bTDC IT for DSOME-B20 operation shown the improved performance, combustion and emission characteristics among other ITs hence it is optimized for DSOME-B20 fuel blend.

Keywords: Dairy scum oil methyl ester, Diesel engine, Injection timing, Performance, Combustion, Emissions

Article published in International Journal of Current Engineering and Technology, Vol.8, No.3 (May/June 2018)