A REVIEW ON EFFECTS OF CERIUM OXIDE ON THE PERFORMANCE AND EMISSION CHARACTERISTIC OF VARIABLE COMPRESSION RATIO IGNITION ENGINE USING EMULSION

MECHANICAL ENGINEERING

The limited fossil fuel resources along with the need to reduce emissions are major impulse to the development of alternative fuel. The heavy vehicular density in big cities and different operating conditions of CI engine are the alarming problem of emissions. In recent research biodiesel has been developed as an alternative fuel for CI engine. Emulsion have shown slightly lower performance and reduction in SOx, CO, HC and CO2 as compare to diesel. But formation of NOx with Emulsion fuel was observed higher. After the advent of nanotechnology nanofuels prepared with nanoparticles has become interesting field of research topic around the world. Nanofuels have shown better improvement in combustion, performance and emission characteristics of CI engine. In this present work, nanofuels were prepared by adding the cerium oxide nanoparticles to the Emulsion. Nanofuels were prepared with high speed ultrasonication and mechanical agitation process to increase the stability. The experiments were conducted on variable compression ignition single cylinder four stroke diesel engine at constant 1500 RPM to evaluate the influence of cerium oxide nanoparticles. The load and compression ratio was varied from 0 to 6 kg and 14 to 18 on the engine. Experiments were performed using neat diesel and Emulsion E15. The BP, BSFC, BTE, EGT, CO, NOx and HC parameters were compared to pure diesel. Results concluded that cerium oxide blended Emulsion E15 considerably improve the performance parameters and decline the harmful emissions especially NOx. Keywords: Nanoparticles,BSFC,CO,HC,NOx

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