Experimental investigation on effect of aluminium oxide particles on transmission oil SAE-30 of HEMM lubricant

摘要

In this study, the effect of Al_2O_3 nano-particles on density and viscosity of transmission oil (SAE-30) used in heavy earth moving machinery (HEMM) is experimentally investigated. In base fluid (transmission oil) different volume fraction of Al_2O_3 (0.01% to 1%) particles are added. Rheological properties have been measured at atmospheric pressure over the temperature ranges of 20°C-50°C. Dynamic light scattering (DLS) technique has been used to obtain the particle size distribution. The present data show that with the increasing temperature the viscosity and density of base fluid and nano-fluid decreases, whereas it increases with increasing particle volume fraction. According to the experimental results of the viscosity, a new correlation for predicting the viscosity of nano-fluid with varying particle volume fraction has been presented.