Green Biofuel

Bachelor Thesis from the year 2017 in the subject Engineering - Mechanical Engineering, grade: A, G.H. Raisoni College of Engineering (G.H.RAISONI INSTITUTE OF ENGINEERING & MANAGMENT JALGAON), course: M.E. THERMAL, language: English, abstract: In this present work, Nano fuels were prepared by adding the cerium oxide nanoparticles to the cottonseed biodiesel. Biodiesel was manufactured from cottonseed oil using trans-esterification process. Nano fuels were prepared with high speed ultra-sonication and agitation process to increase the stability. The fossil fuel resources are limited along with the need to reduce emission which is major impulse to the development of alternative fuel; biodiesel has been developed as an alternative fuel for C.I. engine but it show slightly lower performance and reduction in SOx, CO, HC, CO2 emissions as compare with diesel. But due to higher oxygen contain in biodiesel the formation of NOx was observed higher. Nano-fuels have shown better improvement in combustion, performance and emission characteristics of CI engine. The blending of biodiesel increases the thermal efficiency near to that of diesel and also significantly large reduction in NOx is observed. In the present experimentation the experiments were conducted on variable compression ratio single cylinder four strokes DI diesel engine running at constant 1500 RPM to find the effect of cerium oxide nanoparticles in diesel and blends of diesel-biodiesel. The load and compression ratio was varied from 0 to 6 kg and 14 to 18 on the engine. To increase the stability Nano fuels were prepared with high speed ultra-sonication and agitation process. Nanoparticles concentration was dispersed 50 ppm to the 10% and 20% cotton seed biodiesel in base diesel fuel. The properties of blends of biodiesel 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 cotton seed biodiesel such as 100D, 10CSB, 10CSBCeO250, 20CSB and 20CSBCeO250. The performance parameters like BP, BSFC, BTE, EGT and emission parameters like CO, NOx and HC were compared to pure diesel. The test results revealed that cerium oxide blended cottonseed biodiesel blends improve the performance parameters and reduces harmful emissions especially NOx.