The Performance, Combustion and Emission Analysis of Ci Engine Fuelled with Waste Cooking Oil Biodiesel in Addition of Graphene Nanoparticles and Isopropanol

Abstract

Increasing energy demand, higher oil prices, depleting oil reserves, and environmental pollution issues associated with the help of fossil fuels have renewed interest in developing clean alternative fuels. Nowadays, extensive research is in process to find an alternative fuel and improve its quality. Nanoparticles are a relatively new technology that can be used to improve the properties of fuel. In this research the performance, combustion and emission of CI Engine fueled with WCO Biodiesel in addition of graphene nanoparticles and isopropanol has been evaluated. The graphene nanoparticles with proportions varied from 25ppm, 50ppm and 75ppm were mixed into WCO Biodiesel 20% (B20) + Isopropanol 20% (ISO20) + Diesel 60% (D60) fuel blend. The fuel blends are Diesel, WCO Biodiesel 20% (B20), WCO Biodiesel 20% (B20) + Isopropanol 20% (ISO20) + Diesel 60%(D60), WCO Biodiesel 20%(B20) + Isopropanol 20%(ISO20) + Diesel 60%(D60) + Graphene nanoparticles 25ppm (G25), WCO Biodiesel 20%(B20) + Isopropanol 20%(ISO20) + Diesel 60%(D60) + Graphene nanoparticles 60ppm(G60), WCO Biodiesel 20%(B20) + Isopropanol 20%(ISO20) + Diesel 60%(D60) + Graphene nanoparticles 75ppm(G75). The experiment is conducted on four stroke single cylinder CI engine. Addition of Isopropanol into the WCO Biodiesel blend showed slightly higher BTHE compared B20. However, addition of Graphene nanoparticles showed not much improvement in BTHE. Addition of Graphene nanoparticles at 75ppm showed 0.21% reduced BSFC compared to B20 + ISO20 + D60.  Addition of Graphene nanoparticles at 25 ppm and 75 ppm showed 6.43% and 8.7% increased HRR respectively when compared to diesel. Addition of Graphene nanoparticles at 75 ppm showed 2% increase in In-cylinder pressure compared to B20 + ISO20 + D60. Addition of Graphene nanoparticles at 75 ppm showed 2.9% and 1.58% reduced NO_X and smoke opacity emission compared to Diesel Biodiesel Isopropanol blend respectively. Addition of Graphene nanoparticles into Diesel Biodiesel Isopropanol blend showed optimized all over characteristics.