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Tribological study of sunflower TMP ester and silica nanoparticles additives for hydrodynamic journal bearing application under boundary lubrication condition

Md Modassir Hussain (Department of General Engineering, Institute of Chemical Technology, Mumbai, India and Department of Mechanical Engineering, SVKM’s Institute of Technology, Dhule, India)
Vivek Gaval (Department of General Engineering, Institute of Chemical Technology, Mumbai, India)
Amit Pratap (Department of Oils, Oleochemicals and Surfactants Technology, Institute of Chemical Technology, Mumbai, India)
Sanjay Rukhande (Department of Mechanical Engineering, Fr. C. Rodrigues Institute of Technology, Navi Mumbai, India)

Industrial Lubrication and Tribology

ISSN: 0036-8792

Article publication date: 27 December 2022

8

Abstract

Purpose

This study aims to study the tribological performance of sunflower TMP ester and silica nanoparticles additives as a biolubricant alternative to the conventional lubricants for hydrodynamic journal bearing applications.

Design/methodology/approach

Nanolubricants were synthesized using an ultrasonicator and a homogenizer. A pin-on-disk tribometer was used to simulate the boundary lubrication condition for hydrodynamic journal bearing application in the presence of the studied lubricants. Surface analysis of the pin (bearing material) was done using scanning electron microscopy and energy dispersive X-ray spectroscopy.

Findings

The sunflower TMP ester performed well in terms of the coefficient of friction compared to commercial lubricants, but its wear performance was poor. The silica nanoparticles improved the wear and friction performance of the sunflower TMP ester. With the addition of 1% silica nanoparticles to sunflower TMP ester, the reduction in the coefficient of friction was 27.92% and the reduction in specific wear rate was 54.79%, making it the best lubricant out of all studied lubricants.

Originality/value

Although there are various available studies on vegetable oil-based lubricants for hydrodynamic journal bearing applications, the studies on the use of vegetable oil-based TMP esters for hydrodynamic journal bearing applications are limited. Also, the effect of silica nanoparticles on the tribological performance of TMP esters under boundary lubrication condition has not been studied extensively in the available literature.

Keywords

Citation

Hussain, M.M., Gaval, V., Pratap, A. and Rukhande, S. (2022), "Tribological study of sunflower TMP ester and silica nanoparticles additives for hydrodynamic journal bearing application under boundary lubrication condition", Industrial Lubrication and Tribology, Vol. ahead-of-print No. ahead-of-print. https://doi.org/10.1108/ILT-08-2022-0251

Publisher

:

Emerald Publishing Limited

Copyright © 2022, Emerald Publishing Limited

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