The economic growth of any country is determined by the natural resources it possesses and the fuel that it has. The rate of growth of any country is mostly directly proportional to the amount of fuel it possesses. Fossil fuels are important resources those have helped in the rapid industrialization of the world and thus to the increase in the quality of life. However, due to the threat of supply instabilities and the effect of green house gases caused by internal combustion engines have received more and more interests in the use of alternative fuel The study deals with the experimental investigation and the performance analysis of rice bran oil( non edible) a straight vegetable oil(SVO] and its blends with diesel for different injector opening pressure by using Dl diesel engines. Most of the published work using rice bran oil in diesel engine was carried out without changing injector opening pressure and static injection timing. The observations of the investigation are of the following performance parameters: 1. Specific Fuel Consumption - Diesel vs rice bran oil 2. Optimum Air Fuel ratios. 3. Study of exhaust gases in line with the specifications of Indian pollution norms 4.Techno-Commercial considerations in the modification of engine if required. Experiments were conducted by blending diesel with rice bran oil in various proportions and with varying loads. Studies have found that the use of blends of more viscous rice bran oil and Diesel in various percentages result in the decrease of the Specific fuel consumption (SFC) while the use of 100% rice bran oil results in the marginally higher Specific fuel consumption than Diesel. Further studies are on for other parameters.
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