A study on tribological behavior of rice bran and karanja oil-based Tio2 nano bio-fluids

Rajaganapathy, C.; Rajamurugan, T.V.; Bruno, Andrea; Murugapoopathi, S.; Armstrong, M.

doi:10.1016/j.matpr.2022.02.071

Cited by 8 publications

(5 citation statements)

References 19 publications

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“…On the other hand, in the case of neem and Jatropha oils with SiO 2 , the wear was relatively constant [104,106]. On the contrary, a significant reduction in wear was observed when TiO 2 was used as an additive in karanja and rice bran oils [105].…”

Section: Tribological Characterization and Performance Of Vegetable-d...mentioning

confidence: 93%

“…For example, the use of CuO was tested in canola oil and a significant reduction in wear was achieved from 15.5 × 10 −6 to 6 × 10 −6 mm 3 /Nm with 1% of the additive [90]. According to Table 3, at the same maximum contact pressure, pure Jatropha oil has lower COF values (0.027) compared to other pure oils such as neem (0.055), karanja (0.08), or rice bran (0.05) [104][105][106]. Regarding nanoparticle additives, the study using karanja and rice bran combined with TiO 2 showed a higher COF reduction of about 28% at a nanoparticle concentration of 0.5% [105].…”

Section: Tribological Characterization and Performance Of Vegetable-d...mentioning

confidence: 96%

“…According to Table 3, at the same maximum contact pressure, pure Jatropha oil has lower COF values (0.027) compared to other pure oils such as neem (0.055), karanja (0.08), or rice bran (0.05) [104][105][106]. Regarding nanoparticle additives, the study using karanja and rice bran combined with TiO 2 showed a higher COF reduction of about 28% at a nanoparticle concentration of 0.5% [105]. In the case of neem, SiO 2 nanoparticles were selected and showed a reduction in friction of 21% at a concentration of 0.33% [93].…”

Section: Tribological Characterization and Performance Of Vegetable-d...mentioning

confidence: 99%

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Influence of Molecular Structure on the Physicochemical and Tribological Properties of Biolubricants: A Review

Sanjurjo,

Rodríguez,

Viesca

et al. 2023

Lubricants

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The increase in the price of crude oil, the environmental impact, or the depletion of fossil resources has increased the need for bio-based alternatives. This has led to the search for renewable, biodegradable, and environmentally friendly raw materials to obtain lubricants that meet these characteristics. This review deals with the state of the art of biolubricants along with their most common raw materials and molecular structures, processes of chemical modification of bio-oils, as well as the relationship between their structural features and physicochemical/tribological properties. This review concludes that the production of fatty acid alkyl esters from vegetable oils is the most promising chemical route to produce a wide range of biolubricants through double transesterification reactions. It also highlights the need to explore this route for the production of microalgae-derived biolubricants due to its environmental benefits during cultivation and production processes.

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Section: Tribological Characterization and Performance Of Vegetable-d...mentioning

confidence: 93%

Section: Tribological Characterization and Performance Of Vegetable-d...mentioning

confidence: 96%

Section: Tribological Characterization and Performance Of Vegetable-d...mentioning

confidence: 99%

See 1 more Smart Citation

Influence of Molecular Structure on the Physicochemical and Tribological Properties of Biolubricants: A Review

Sanjurjo,

Rodríguez,

Viesca

et al. 2023

Lubricants

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show abstract

“…The pH range and SHC were measured with pH meter and the differential scanning calorimeter. Meanwhile, simultaneously thermal conductivity has enhanced with moderate pH values [27]. The weight fraction of SiO 2 , particle sizes, pH range, and sonication process time are the input factors which are displayed in Table 1.…”

Section: Materials and Preparation Of Nanofluids Aspectsmentioning

confidence: 99%

Influence of Process Parameters and Convective Heat Transfer on Thermophysical Properties of SiO2 Nanofluids by Multiobjective Function Analysis (DFA)

Suprabha

Mahesha

Nanjundappa

2023

Journal of Nanomaterials

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From the requirements, high-performance cooling systems in the applications of solar, heat exchangers, and chemical industries are needed to improve efficiency. The metal-oxides-based nanofluids composed the better thermal properties with exchange of heat-transfer mechanisms. Therefore, this study mainly focused on nanosilicon dioxide materials to produce the nanofluids with blending of water-base medium by two-step techniques. The scanning electron microscope was used to analyze the presence of silicon dioxide nanoparticles from the procured material. During the two-step method input aspects like weight fraction of silicon dioxide (1.5–4.5 wt%), particle sizes (10–30 µm), pH range of water (5–9), and sonication process time (2–4 hr) were considered. The outcomes like thermal conductivity, specific heat capacity, and viscosity were selected as thermal physical properties. The desirability techniques were implemented to identify the best optimal input parameters from the nanofluid processing. From the desirability outcomes, the processed nanosilicon dioxide fluids with respective input parameters were 0.9623 W/mK for thermal conductivity, 688 J/kg K forspecific heat capacity, and 0.00162 for viscosity, respectively. The heat-transfer coefficient was successfully identified with processed nanosilicon dioxide fluids, and the Nusselt number and Reynolds number were attained with respective heat-transfer coefficients.

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“…Rice bran oil can also be used as an edible oil in recent times and as a raw material to produce biofuels and environmentally friendly lubricants [5][6][7][8][9][10][11]. Recently, a series of tribological and rheological studies have been conducted on rice bran oils [12][13][14][15][16][17][18][19]. The study of rice bran oil has been addressed by a number of researchers, among whom we can mention [20][21][22][23].…”

Section: Introductionmentioning

confidence: 99%

Effect of the Temperature and Oxidation Time on Some Physicochemical Characteristics of the Rice Bran Oil

Creţu

Șolea

2022

Ann_UGAL_MMS

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Due to their excellent characteristics, vegetable oils are successfully used in various formulations of organic lubricants. In this context, the advanced biodegradability and excellent lubricity performance of rice oil leads to its being considered as a real potential for the lubricants industry. However, as with other vegetable oils, the stability of rice bran oil is strongly influenced by the oxidation process. Therefore, the aim of this work was the oxidation stability monitorization of rice bran oil by spectrophotometric techniques. For this purpose, oxidation tests of rice bran oil at elevated temperatures were performed.In this paper, transmittance spectra were determined, and the trichromatic components and coordinates were calculated, as well as the colour differences for rice oils subjected to a forced oxidation treatment at temperatures of 100 °C and 120 °C for 4, 8 and 10 hours. The results obtained show that, although after the first 4 hours of forced oxidation significant changes appear on the physicochemical properties of rice bran oil, an increase in the test time from 8 to 10 hours does not lead to significant changes in the analysed parameters, the conclusion being valid for both test temperatures.

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A study on tribological behavior of rice bran and karanja oil-based Tio2 nano bio-fluids

Cited by 8 publications

References 19 publications

Influence of Molecular Structure on the Physicochemical and Tribological Properties of Biolubricants: A Review

Influence of Molecular Structure on the Physicochemical and Tribological Properties of Biolubricants: A Review

Influence of Process Parameters and Convective Heat Transfer on Thermophysical Properties of SiO2 Nanofluids by Multiobjective Function Analysis (DFA)

Effect of the Temperature and Oxidation Time on Some Physicochemical Characteristics of the Rice Bran Oil

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