Investigations On Direct Injection Diesel Engine Fuelled With Metallic and Non Metallic Oxide Nanoparticles Dispersed Mahua Biodiesel An Experimental and Theroretical Approach

Abstract

The search for of alternative fuels has been driven by the depletion of fossil fuel newlinereserves, the environmental impact of burning fossil fuels, and the increasing need for newlineenergy. Biodiesels may be produced from both edible and non-edible feedstocks, newlinehowever the latter is more likely to be employed because to the unaffected availability newlineof the edible feedstock. The aim of the present work is to study the stability and newlinephysicochemical properties of metal oxide and non metal oxides namely graphene newlineoxide (GO) and Zinc oxide (ZnO) nanoparticles dispersed Mahua biodiesel blend newline(B20). The GO and ZnO nanoparticles were considered at 75 mg/L. Furthermore, the newlinesurfactant (CTAB) and dispersant (TWEEN 80) were added to 75 mg/L nanoparticles newlineat different proportions, namely, 1:02, 1:0.4, 1:0.6, 1:0.8, and 1:1 ratio, respectively. newlineThe process of dispersion of nanoparticles in B20 was performed using a sonicator. newlineFurther the stability analysis of nanoparticles dispersed in B20 was performed by UV newlinephoto spectroscopy principle and evaluated by absorbance and transmittance approach. newlineThe stability analysis was performed in three different time periods, namely, week 1, newlineweek 2, and week 3 respectively. Stability was better for dispersant-based nanofuel than newlinefor surfactant-based nanofuel and base fuel. Among all the tested fuels, B20+GO 75 newlinemg/L+TWEEN 80 75 mg/L and B20+ ZnO 75 mg/L+TWEEN 80 75 mg/L showed newlinebetter dispersion stability than the other samples throughout the period. Moreover, the newline1:1 ratio of dispersant and surfactant gave tremendous dispersion stability compared to newlinethe remaining ratios. The higher absorption of 4.58 and lower transmission of 87.7% newlinewere obtained with B20+GO 75 mg/L+TWEEN 80 75 mg/L. In addition, the fuel newlineproperties were evaluated using ASTM standards. On the other hand, the results for newlineviscosity, density, and flash point were not quite consistent, while the calorific value newlineand cetane number were improved. The best fuel properties such as calorific value and newlineAndhra University, Visakhapatnam newlinexvii newlinecetane num