Experimental investigation on effect of injection timing and injection pressure on a stationary direct injection diesel engine fueled with preheated rice bran vegetable oil

Abstract

Global interest in increasing the usage of alternative fuels in internal combustion engines continues to be strong due to environmental concerns and the limited availability of conventional fossil fuel in future Latest interest has focused on the use of bio derived fuels in diesel engines Vegetable oils and their derivatives are alternative diesel fuels and rice bran oil is one of the most important oil in terms of availability Keeping this in mind a research work has been carried out to investigate the effect of injection timing and injection pressure on a diesel engine with rice bran vegetable oil In the present research the effect of injection timing and injection pressure on performance and emission parameters of a direct injection diesel engine fueled with preheated rice bran vegetable oil is investigated Experiments are conducted on a single cylinder four stroke air cooled direct injection and 4 4 kW compression ignition engine The performance and emission level of diesel engine are studied at different loads by using the fuels like diesel rice bran oil rice bran biodiesel derived from rice bran vegetable oil and preheated rice bran oil It is observed that viscosity of rice bran oil is equal to that of diesel when heated at 158 C and also equal to that of rice bran based biodiesel when heated at 137 C newline