Investigation of Diesel Engine Using Bio-Diesel (Methyl Ester of Jatropha Oil) for Various Injection Timing and Injection Pressure

摘要

The increased number of automobiles in recent years has resulted in great demand for diesel and petrol. This has led to the development of renewable energy. Energy from biomass and more specific bio-diesel is one of the opportunities that could cover the future. The bio-diesel is derived from vegetable oil and transesterified vegetable oil is a promising alternative fuel for diesel engine. This experiment is conducted in a single-cylinder, water-cooled DI diesel engine with different injection timing and different injection pressure. From the experimental investigation performance, combustion and emission characteristics are studied. The engine is made to run on diesel and bio-diesel by various blend ratios of B20, B40, B60, B80 blend of MEOJ (Methyl Ester Of Jatropha Oil) and B100 at 1500 RPM. The engine is coupled to an eddy current dynamometer. The emissions NO{sub}x and smoke density were measured at different injection timings and different injection pressures at different load conditions. Using AVL combustion analyzer the combustion parameters such as cylinder pressure, heat release rate and cycle-to-cycle variation were analyzed.