Investigation of Effect of Injection Pressure on Performance and Emission Characteristics of Composite Oil Biodiesel on DI CI Engine

The objective of the present investigation is to evaluate the Performance and Emission characteristics of Blends of methyl esters of composite oils(COme) of Karanja (PO) and Waste cooking oil(WCO)(B10, B20, B100) with Performance and Emission characteristics of methyl esters of Karanja oil(B100), methyl esters Waste cooking oil(B100) and diesel fuel at injection pressures of 160 bar, 180 bar and varying load conditions. The Transesterification process was carried out for composite oils of Karanja and Waste cooking oil (P50: W50), Karanja oil(PO), Waste cooking oil(WCO) and obtained biodiesel are blended with diesel in B10, B20, B100 for P50: W50 and B100 for individual oils of Karanja oil and Waste cooking oil. The Physico-chemical properties of biodiesel are presented and obtained as per ASTM standards. The effects of injection pressures, varying loads and blends of biodiesel with diesel on the Performance and Emission characteristics were evaluated using a Direct Injection (DI) Compression Ignition (CI) engine and tested at a constant engine speed of 1500 rpm. It was observed that there is an improvement in BTE (Brake Thermal Efficiency), while BSFC (Brake Specific Fuel Consumption) decreased when used with biodiesel blends in comparison with conventional diesel. The obtained results showed better Performance and Lower Emission of biodiesel from B20 of COme compared to biodiesel obtained from individual oils and diesel fuel and can be used without engine modification in a DI CI engine.