Experimental Investigation on Effect of Injection Pressure on the Performance and Emission Characteristics of CI Engine Using Graphene Oxide Nanoparticle Additive in Canola Biodiesel

Abstract

Due to depletion of fossil fuels and increase of Global Warming, the importance of renewable resources and emission regulations is getting increased, many developing countries are focused on emission regulations and usage of renewable energy sources in automobile sector, Compression Ignition (C.I) Engine is the main source of energy conservation device used in automobiles, which has good thermal efficiency and less specific fuel consumption. In this study, an attempt is made to determine the optimal injection pressure for C. I Engine, to regulate the emissions of C. I engine by using Canola oil Biodiesel as a fuel and to improve the performance of C.I Engine by adding Graphene Oxide Nanoparticle additive in Canola Biodiesel. Experiments are conducted on C. I Engine at 200 bar, 220 bar, and 240 bar injection pressures with diesel as a fuel; results show that 220 bar is the best injection pressure for C. In the engine, canola oil biodiesel blends of B20, B30, and B40 are tested at 220 bar injection pressure; results show a significant reduction in engine emissions, but the B30 blend decreases engine performance. So, to obtain best performance from engine B30 biodiesel blend is mixed with graphene oxide Nanoparticle additive in 40PPM, 60PPM and 80PPM by using ultrasonication process with Sodium dodecyl sulfate (SDS) as a surfactant, results shown that B30+60PPM of graphene oxide Nanoparticle additive blend has increased Brake The mall Efficiency(BTE) of 20% and reduced Brake Specific Fuel Consumption (BSFC) of 16.12% compared to B30, there is a reduction in unburned hydrocarbon (HC) and Carbon Monoxide (CO) emissions and Slight increment in Carbon Dioxide (CO2) and Oxides of Nitrogen (NOx) emissions.