Abstract

In the current paper, the behavior of zinc oxide/SAE50 nano lubricant as part of the new generation of coolants and lubricants is examined using Response Surface Method (RSM). The data used in this study was viscosity at dissimilar volume concentrations (0 to 1.5%) and temperatures (5 to 50 °C) for dissimilar shear rate values. Therefore, sensitivity analysis based on variation of nanoparticles (NPs) concentration and temperature was also implemented. The findings revealed that enhancing the volume fraction (ϕ) exacerbates the viscosity sensitivity to temperature. Given the noteworthy deviance between the experimental viscosity and the data forecasted by existing classical viscosity correlations, a novel regression model is gained. R2 and adj R2 for this model were calculated as 0.9966 and 0.9965, respectively, which represents a very good prediction with a standard deviation of 3%.

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