Author : Durga Prasada Rao, M.V.S. Murali Krishna, and B. Anjaneya Prasad

Investigations were carried out to determine exhaust emissions of a conventional diesel engine with different operating conditions [normal temperature and pre-heated temperature] of rice bran oil in crude form with varied injection timing and injector opening pressure. Exhaust emissions [particulate emissions and oxides of nitrogen(NOx)] were determined at various values of brake mean effective pressure of the engine fuelled with diesel and crude rice bran oil. Comparative studies on exhaust emissions were made with diesel working on similar conditions. Particulate emissions increased, while NOx levels decreased with crude vegetable oil operation. Exhaust emissions improved with increase of injector opening pressure, advanced injection timing and preheating of vegetable oil.

Keywords: Alternative fuels, vegetable oils, exhaust emissions

Article published in International Journal of Current Engineering and Technology, Vol.6, No.3 (June-2016)