A Study on the Effect of Injection Pressures On the Performance and Emission Characteristics of C I Engine with Pongamia Pinnata Methyl Ester as Fuel

Compression ignition engine is a popular prime mover in rural areas, particularly in the places where electrical power is not available. The rapid depletion of fossil fuel has stimulated worldwide efforts to produce alternative fuel to diesel fuel. Use of bio fuel as an alternative fuel can contribute significantly towards the twin problem of fuel crises. The fuel of bio origin may be the bio diesel obtained from edible or non edible vegetable oil through transesterification process. Most of the properties of bio diesel compare favourably with the characteristics required for diesel fuel. This fuel in the form of blend with diesel performs almost as well as neat diesel fuel with no engine modification. Pongamia pinnata (Honge oil) is non edible vegetable oil. Experiments were conducted on 10 HP single cylinders, four stroke, water cooled CI engine using honge oil methyl esters to study the engine performance and emission at different injection pressures of 180, 200 and 220 bar. Non edible honge oil bio diesel was tested for their use as substitute fuels for diesel engines. The results showed a better performance and reduced emission at an injection pressure of 200 bar.