Enhancing AW/EP tribological characteristics of biolubricant synthesized from chemically modified cotton methyl-esters by using nanoparticle as additives

Gul, M.; Kalam, Md. Abul; Zulkifli, Nurin Wahidah Mohd; Hassan, Muhammad Rosdi Abu; Abbas, Md. Mujtaba; Yousuf, Sumra; Al-Dahiree, Omar Sabah; Abbas, Md. Kamaleldin Gaffar; Ahmed, Waqar; Imran, Shahab

doi:10.1108/ilt-07-2021-0253

Cited by 3 publications

(1 citation statement)

References 28 publications

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“…Also, TMP esters of vegetable oil are found to perform well with respect to reducing friction and wear (Hussain et al , 2021b). Many researchers have found nanoparticles as an eco-friendly alternative to conventional antiwear additives (Alves et al , 2013; Zhao et al , 2020; Gul et al , 2021). Silica (SiO 2 ) nanoparticles are one among them.…”

Section: Introductionmentioning

confidence: 99%

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

Hussain

Gaval

Pratap

et al. 2022

ILT

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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.

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Section: Introductionmentioning

confidence: 99%

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

Hussain

Gaval

Pratap

et al. 2022

ILT

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Wear protection assessment of ultralow viscosity lubricants in high-power-density engines: A novel wear prediction algorithm

Blanco-Rodríguez,

Porteiro,

López-Campos

et al. 2024

Friction

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Durability and reliability have been studied for decades through intensive trial-error experimentation. However, there are numerous fields of application where the costs associated with this approach are not acceptable. In lubricated machines with severe dynamic loads, such as high-power-density engines, simulation tools offer clear advantages over intensive testing. Prototypes and multiple scenarios can be cost-effectively simulated to assess different lubricants and engine configurations. The work presented here details the study of wear based on a validated elastohydrodynamic (EHD) simulation model of the connecting rod journal bearing. This model accounts for elastic deformation through a connecting rod finite element model (FEM). In addition, multiple lubricant rheological and tribological dependences, determined by specific experimental tests, are applied in the model through their interaction with the simulation software. Correspondingly, a novel wear algorithm is proposed to predict wear depth over time evolution along a proposed wear cycle based on the typical working ranges of high-performance engines. A final assessment is presented to compare 4 different ultralow-viscosity lubricants in their protective performance under severe conditions. The results show the evolution of the wear load and wear depth over the wear cycle. This evaluation is key to describing a lubricant selection procedure for high-power-density engines.

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Preparing vegetable oils-based metalworking fluids by a hydrolysis-esterification two-step process

Kamyab,

Wang,

et al. 2024

Biomass and Bioenergy

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Enhancing AW/EP tribological characteristics of biolubricant synthesized from chemically modified cotton methyl-esters by using nanoparticle as additives

Cited by 3 publications

References 28 publications

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

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

Wear protection assessment of ultralow viscosity lubricants in high-power-density engines: A novel wear prediction algorithm

Preparing vegetable oils-based metalworking fluids by a hydrolysis-esterification two-step process

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