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Title: Effects of cerium oxide on the performance and emission characteristic of variable compression ratio ignition engine using Biodiesel from waste mustard oil
Authors: Singh, Gurinder
Supervisor: Sharma, Sumeet
Keywords: cerium oxide , biodiesel variable compression ratio,;emissions performance;surfactant, nano particles;nanofuel;thermal engineering;mechanical engineering;med
Issue Date: 11-Aug-2015
Abstract: 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. Biodiesel have shown slightly lower performance and reduction in SOx, CO, HC and CO2 as compare to diesel. But formation of NOx with biodiesel 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 biodiesel. Biodiesel was manufactured from waste mustard oil using transesterification process. Nanofuels were prepared with high speed ultrasonication and 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. The concentration of nanoparticles was dispersed 50 ppm to the 10% and 15% biodiesel in base fuel diesel. The Cetyl Trimethyl Ammonium Bromide (CTAB) was used as surfactants. The properties of different biodiesel blends such as calorific value , flash point, and viscosity were also measured as per IS standards. Experiments were performed using neat diesel and different blends of biodiesel such as D100, B10, B10CeO250, B15 and B15CeO250. The BP, BSFC, BTE, EGT, CO, NOx and HC parameters were compared to pure diesel. Results concluded that cerium oxide blended biodiesel blends considerably improve the performance parameters and decline the harmful emissions especially NOx.
Description: ME-Thermal Engineering-Thesis
Appears in Collections:Masters Theses@MED

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