Performance and emission characteristics of Waste cooking oil biodiesel blended with nano additives on single cylinder diesel engine

Abstract

In this paper, used cooking oil was investigated as a possible source of biofuel and blending with nano particles which increases the efficiency of biofuel, reduces the emissions, and ensures that the fuel burns completely. The (CeO2) cerium oxide and (MgO) magnesium oxide nano particles are blended with WCO using magnetic stirrer and ultrasonicator. The test being conducted using the sequence of fuel blends: 80% of diesel and 20% of WCO biofuel and 30 ppm Cerium oxide, 90% of diesel and 10% of WCO biofuel and 45 ppm of Cerium oxide, 80% of diesel and 20% of WCO biofuel and 30 ppm magnesium oxide, 90% of Diesel and 10% of WCO biofuel and 45 ppm magnesium oxide and testing its properties which include density, Kinematic Viscosity, Flash and fire point, Calorific value and using a variable compression ratio (VCR) engine, we test its BP, BTHE, SFC, and emissions characteristics such as NOx, CO, HC, CO2, and O2. Evaluating different blends and determining which one is a renewable alternative fuel by comparing their characteristics. Overall analysis shows that the B10CeO2 blend and B20CeO2 blend produces lower density, lowest kinematic viscosity, the highest flash and fire point and highest calorific value and B20CeO2 blend is more efficient than other biofuel blends. It gives higher BTHE and lower SFC. It also produces less HC, NOx, CO2 emission and high O2. That concludes B20CeO2 45 PPM blend indicating that the use of blended WCOB has the potential to be a more environmentally friendly alternative fuel.