Experimental investigation of tribological properties of TiO2 nanoparticles in engine oil

ShashaVali, Shaik; Singh, Dheeraj; Patil, Avinash J.

doi:10.1016/j.matpr.2020.12.1120

Cited by 7 publications

(6 citation statements)

References 9 publications

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“…The most critical oil applications for engines include lubricating at both high and low temperature, reducing wear across multiple moving parts, cooling of moving parts, and so on. Therefore, the viscosity and thermal conductivity of the oil are critical properties that must be considered because viscosity directly impacts both pumping power and pressure drop; in addition, higher thermal conductivity means more excellent and better heat transfer performance [3][4][5]. Furthermore, the performance of the oil at temperatures close to zero and high temperatures is essential.…”

Section: Introductionmentioning

confidence: 99%

Experimental Study of Thermal Properties and Dynamic Viscosity of Graphene Oxide/Oil Nano-Lubricant

Ranjbarzadeh

Chaabane

2021

Energies

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This experimental study was carried out based on the nanotechnology approach to enhance the efficacy of engine oil. Atomic and surface structures of graphene oxide (GO) nanoparticles were investigated by using a field emission scanning electron microscope and X-ray diffraction. The nano lubricant was produced by using a two-step method. The stability of nano lubricant was analyzed through dynamic light scattering. Various properties such as thermal conductivity, dynamic viscosity, flash point, cloud point and freezing point were investigated and the results were compared with the base oil (Oil- SAE-50). The results show that the thermal conductivity of nano lubricant was improved compared to the base fluid. This increase was correlated with progressing temperature. The dynamic viscosity was increased by variations in the volume fraction and reached its highest value of 36% compared to the base oil. The cloud point and freezing point are critical factors for oils, especially in cold seasons, so the efficacy of nano lubricant was improved maximally by 13.3% and 12.9%, respectively, compared to the base oil. The flash point was enhanced by 8%, which remarkably enhances the usability of the oil. It is ultimately assumed that this nano lubricant to be applied as an efficient alternative in industrial systems.

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Section: Introductionmentioning

confidence: 99%

Experimental Study of Thermal Properties and Dynamic Viscosity of Graphene Oxide/Oil Nano-Lubricant

Ranjbarzadeh

Chaabane

2021

Energies

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“…Moreover, according to the collision of theory, the Brownian motion usually improves with thermal conductivity, and a solid-solid conduction heat transfer can be achieved. Also, as the thermal conductivity of nanolubricants increases with motion, the convective heat transfer mechanism will be highly effective [11,20,22]. Finally, the stability of the prepared nano-lubricating oils (nanofluids) was evaluated for 60 days.…”

Section: Thermal Conductivity Of Nano-lube Oilmentioning

confidence: 99%

“…All internal combustion engines used lubricating oil to prevent friction, corrosion, and overheating of moving parts and reduce their abrasion caused by continuous contact [5][6][7][8]. Accordingly, from a technical point of view, enhancing lube oil quality with nano-additives will reduce the manufacturing costs of lubricating oil and provide high lubricity performance [9][10][11][12][13][14]. The addition of nanomaterials into lubricating oil improves their specifications due to the unique properties of these materials and their specific shape and size [14,20].…”

Section: Introductionmentioning

confidence: 99%

Deep Understanding of the Mechanism and Thermophysical Properties of Prepared Nanofluids Lube Oil Stock-60 with Al2O3 NPs

Awad¹,

Sukkar²,

Jaed³

2022

JASN

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Iraqi petroleum refineries produce large quantities of base lubricating oils (lube oils). Managing the influence of nano-additives on the lube oil nanofluids is required deep understanding to explain the resulting new specifications of produced nano-lubricants. The present study investigated the effect of Al2O3 NPs addition on the thermal properties of lube oil stock-60. Different mass additions of 0.25, 0.65, 1.05, 1.45, and 1.85 wt.% of Al2O3 NPs at operating temperatures of 20-50°C were evaluated. Also, the thermal conductivity coefficient of the prepared nanofluid was studied at the full range of the experimental temperatures (20-50°C). It was noted that the addition of Al2O3 NPs improved the thermal properties of the prepared nano-lubricant due to the high thermal conductivity of the added Al2O3 NPs. Moreover, the greatest improvement in the thermal conductivity of modified nano-lubricating oil was 13.02% at added Al2O3 mass fraction of 1.85%. The results indicated that the viscosity index of the prepared nano-lubricant was improved dramatically with Al2O3 NPs addition increase at measured standard temperatures of 40 and 100°C. The viscosity index of lubricant nanofluid is increased up to 2.46% at a weight fraction of 1.85%. The flashpoint increased by 1.33, 3.54, 5.75, 7.52, and 9.73% for mass fraction of 0.25, 0.65, 1.05, 1.45, and 1.85 wt.%, respectively. Furthermore, the highest flashpoint value was 248 o C of prepared nanofluid lube oil with 1.85 wt.% of Al2O3 NPs. Finally, the produced nano-lubricating oil has high operating quality with economic feasibility. Furthermore, an accurate correlation for predicting the viscosity of both types of nano-lubricants was provided.

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“…Wear can be reduced by using TiO 2 nanoparticles because it helps to form a smooth tribofilm [34]. Using TiO 2 nanoparticles added to 20W-40-type engine oil, Shaik et al showed, on a pin-on-disc tribometer, that titania nanoparticles reduce shear resistance, so friction can be reduced by up to 86.1% when 0.4 wt% nanoparticles are used [35]. Further automotive industry research has also positively confirmed the possibility of using titania nanoparticles as an additive on cylinder walls using 5W-30 commercial motor oil [36], polyalphaolefin-based gel lubricant [37], lithium grease [38], liquid paraffin [39,40] and SAE30 fully formulated lubricating oil [41].…”

Section: Introductionmentioning

confidence: 99%

Tribological Investigation of the Effect of Nanosized Transition Metal Oxides on a Base Oil Containing Overbased Calcium Sulfonate

2023

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In this study, copper(II) oxide, titanium dioxide and yttrium(III) oxide nanoparticles were added to Group III-type base oil formulated with overbased calcium sulfonate. The nanosized oxides were treated with ethyl oleate surface modification. The tribological properties of the homogenized oil samples were tested on a linear oscillating tribometer. Friction was continuously monitored during the tribological tests. A surface analysis was performed on the worn samples: the amount of wear was determined using a digital optical and confocal microscope. The type of wear was examined with a scanning electron microscope, while the additives adhered to the surface were examined with energy-dispersive X-ray spectroscopy. From the results of the measurements, it can be concluded that the surface-modified nanoparticles worked well with the overbased calcium sulfonate and significantly reduced both wear and friction. In the present tribology system, the optimal concentration of all three oxide ceramic nanoadditives is 0.4 wt%. By using oxide nanoparticles, friction can be reduced by up to 15% and the wear volume by up to 77%. Overbased calcium sulfonate and oxide ceramic nanoparticles together form a lower friction anti-wear boundary layer on the worn surfaces. The results of the tests represent another step toward the applicability of these nanoparticles in commercial engine lubricants. It is advisable to further investigate the possibility of formulating nanoparticles into the oil.

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Experimental investigation of tribological properties of TiO2 nanoparticles in engine oil

Cited by 7 publications

References 9 publications

Experimental Study of Thermal Properties and Dynamic Viscosity of Graphene Oxide/Oil Nano-Lubricant

Experimental Study of Thermal Properties and Dynamic Viscosity of Graphene Oxide/Oil Nano-Lubricant

Deep Understanding of the Mechanism and Thermophysical Properties of Prepared Nanofluids Lube Oil Stock-60 with Al2O3 NPs

Tribological Investigation of the Effect of Nanosized Transition Metal Oxides on a Base Oil Containing Overbased Calcium Sulfonate

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