Experimental investigation on thermal and rheological behaviour of PAG lubricant modified with SiO 2 nanoparticles

Sanukrishna, S.S.; Vishnu, Sri; Prakash, M. Jose

doi:10.1016/j.molliq.2018.04.066

Cited by 25 publications

(11 citation statements)

References 29 publications

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“…Another notable characteristic observed was shear thinning behavior in the new nanoparticle-based lubricant. This behavior agrees with findings obtained by Sanukrishna and coworkers, who studied the rheological behavior of SiO2 nanoparticles dispersed into synthetic polyalkylene glycol (PAG) refrigerant compressor oil [27].…”

Section: Rheological Characterizationsupporting

confidence: 91%

The Performance of SiO2 and TiO2 Nanoparticles as Lubricant Additives in Sunflower Oil

et al. 2020

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In recent years, there has been growing concern regarding the use of petroleum-based lubricants. This concern has generated interest in readily biodegradable fluids such as vegetable oils. The present work evaluated the rheological and tribological characteristics of sunflower oil modified with silicon dioxide (SiO2) and titanium dioxide (TiO2) nanoparticles as lubricant additives at different concentrations. A parallel plate rheometer was used to evaluate the effects of concentration and shear rate on the shear viscosity, and the experimental data was compared with conventional models. The wear protection and friction characteristics of the oil-formulations were evaluated by conducting block-on-ring sliding tests. Surface analysis-based instruments, including scanning electron microscopy (SEM), energy-dispersive spectroscopy (EDS), and profilometry, were used to characterize the morphology and structure of the worn surfaces. The experimental results showed that the coefficient of friction decreased with the addition of SiO2 and TiO2 nanoparticles by 77.7% and 93.7%, respectively when compared to base sunflower oil. Furthermore, the volume loss was lowered by 74.1% and 70.1%, with the addition of SiO2 and TiO2 nanoparticles, respectively. Based on the experimental results, the authors conclude that modified sunflower oil enhanced with nanoparticles has the potential for use as a good biodegradable lubricant.

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Section: Rheological Characterizationsupporting

confidence: 91%

The Performance of SiO2 and TiO2 Nanoparticles as Lubricant Additives in Sunflower Oil

et al. 2020

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“…This behavior agrees with findings obtained by the authors in previous studies where the rheological behavior of coconut and sunflower oils modified with SiO 2 nanoparticles at different concentrations was studied [15,16]. Similar findings were reported by Sanukrishna and coworkers, who studied the rheological behavior of synthetic polyalkylene glycol (PAG) refrigerant compressor oil with the addition of SiO 2 nanoparticles [17]. Figures 6 & 7 depict the rheological behavior of grapeseed oil with TiO 2 nanoparticles dispersed at different concentrations.…”

Section: Rheological Properties Of Nanofluidssupporting

confidence: 89%

Investigating the Rheological Behavior and Lubrication Performance of Grapeseed Oil Modified with SiO2 and TiO2 Nanoparticles for Industrial Applications

Ortega

2022

JOJMS

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Currently technology demands for a sustainable and more environmentally friendly lubricant. Additionally, government regulations and recent concern on the use of petroleum-based lubricants has increased research on environmentally friendly lubricants such as vegetable oils. This study investigates the rheological behavior and the lubrication performance of grapeseed oil modified with silicon dioxide (SiO 2 ) and titanium dioxide (TiO 2 ) nanoparticles as lubricant additives. A parallel plate rheometer was used to investigate the effect of concentration and shear rate on the viscosity. Block-on-ring wear tests were conducted to investigate the effect of different nanoparticle concentrations on the coefficient of friction (COF) and wear volume loss. To analyze the worn surfaces, surface analytical methods including scanning electron microscopy (SEM), energy-dispersive spectroscopy (EDS), and profilometry were used. Additionally, a theoretical approach was used to estimate the energy consumed by friction. From the experimental results, it was found that the coefficient of friction was lowered by the addition of SiO 2 and TiO 2 nanoparticles 50% and 63% respectively, when compared to grapeseed oil without additives. Wear volume loss decreased 39% and 82% using SiO 2 and TiO 2 nanoparticles as lubricant additives, respectively. Therefore, grapeseed oil modified with nanoparticles shows potential as a lubricant candidate in industrial applications.

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“…They concluded that the prepared ZnO nanofluid had higher thermal conductivity and viscosity compared to the pure ethylene glycol. Sanukrishna et al 38 investigated the thermophysical properties of SiO 2 nano-additive oil-based lubricants. They showed that the pure lubricant containing nano-SiO 2 had higher thermal conductivity and viscosity compared to the pure lubricant.…”

mentioning

confidence: 99%

Experimental comparison between ZnO and MoS2 nanoparticles as additives on performance of diesel oil-based nano lubricant

Mousavi

Heris

Estellé

2020

Sci Rep

176

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this study compares the tribological and thermophysical features of the lubricating oil using MoS 2 and Zno nano-additives. the average size of MoS 2 and ZnO nanoparticles were 90 nm and 30 nm, respectively. The nanoparticles were suspended using Triton X-100 in three different concentrations (0.1, 0.4 and 0.7 wt.%) in a commercial diesel oil. Tribological properties such as mass loss of the pins, friction coefficient, and worn surface morphologies and thermophysical properties such as viscosity, viscosity index, flash point and pour point of resulting nano lubricant were evaluated and compared with those of pure diesel oil. the tribological behavior of nano lubricants was evaluated using a pin-ondisc tribometer. the worn surface morphologies were observed by scanning electron microscopy. the overall results of this experiment reveal that the addition of nano-MoS 2 reduces the mass loss values of the pins in 93% due to the nano-MoS 2 lubricant effect. With 0.7 wt.% in nanoparticles content, the viscosity of MoS 2 and ZnO nano lubricants at 100 °C increased by about 9.58% and 10.14%, respectively. Pure oil containing 0.7 wt.% of each nanoparticle increased the flash point because of its small size and surface modifying behavior compared to the pure oil. Moreover, the addition of Zno nanoparticles with pure oil lubricant is more suitable than MoS 2 nanoparticles for improving the thermophysical properties of pure oil.

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Experimental investigation on thermal and rheological behaviour of PAG lubricant modified with SiO 2 nanoparticles

Cited by 25 publications

References 29 publications

The Performance of SiO2 and TiO2 Nanoparticles as Lubricant Additives in Sunflower Oil

The Performance of SiO2 and TiO2 Nanoparticles as Lubricant Additives in Sunflower Oil

Investigating the Rheological Behavior and Lubrication Performance of Grapeseed Oil Modified with SiO2 and TiO2 Nanoparticles for Industrial Applications

Experimental comparison between ZnO and MoS2 nanoparticles as additives on performance of diesel oil-based nano lubricant

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