Performance of nano-bio-lubricants,ISO VG46 oil and its blend with Jatropha oil in statically loaded hydrodynamic plain journal bearing

Abstract

In this experimental study, three stable nano-bio-lubricants were prepared by dispersing CuO nanoparticles in three bio-lubricants and later investigations were carried out to determine pressure distribution and frictional performance of ISO VG46 oil, bio-lubricants and nano-bio-lubricants in hydrodynamic journal bearing under different loads and speeds. The experimental results revealed that pressure of oils inside bearing depends on viscosity of oils. Addition of nanoparticles in bio-lubricants did not help to enhance the maximum pressure of oil inside bearing. Frictional performance of ISO VG46 oil and bio-lubricants was according to their viscosity but coefficient of friction of nano-bio-lubricants was higher compared to ISO VG46 oil inspite of having approximately same viscosity compared to ISO VG46 oil. Among all the oils, ISO VG46 oil and bio-lubricant 9010 had similar performance and hence Bio-lubricant 9010 can be used in place of ISO VG46 oil in journal bearing.

Keywords

Journal bearing bio-lubricants nano-bio-lubricants ISO VG46

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