Most of the recent researches focus on alternative fuels because fossil petroleum resources reduce with time and also fossil fuels have the most adverse impact on environmental pollution. There are many researches that point out the importance of biodiesel fuel as an alternative to diesel fuel. The main objective of this work is to produce biodiesel from Chlorella vulgaris microalgae and utilize it through the high fuel injection pressure on a diesel engine in order to meet future emission legislation.
Fuel injection pressure plays a significant job in atomization of injected Chlorella vulgaris biofuel and consent to for complete burning and tends reduce pollutants. The fuel injection pressure varies 22 to 42 MPa through CRDI fuel injection system. Based on the results, B25 Chlorella vulgaris fuel blend at 42 MPa of fuel injection pressure exhibits high thermal efficiency, better combustion and emission characteristics.