Rheological characteristics and tribological performance of neem biodiesel–based nano oil added with MWCNT

Singh, Nishant; Singh, Yashvir; Sharma, Abhishek; Chinnasamy, Vivekanandhan; Palamanit, Arkom

doi:10.1007/s13399-021-01919-7

Cited by 7 publications

(4 citation statements)

References 41 publications

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“…Furthermore, it can be observed that the kinematic viscosity for all nano coolants exhibits a minimal reduction compared to the base fluid, Ethylene Glycol. The behaviour of the nano coolant viscosity concerning temperature change, as demonstrated in Figure 6, highlights the importance of understanding the fluid's thermophysical properties to optimize its performance in various applications [23]. The reduction in viscosity with increasing temperature can be attributed to the thermal agitation of the molecules, which consequently lowers the internal resistance to flow.…”

Section: Kinematic Viscosity and Viscosity Index (Vi)mentioning

confidence: 99%

“…When subjected solely to gravitational forces, kinematic viscosity quantifies a fluid's intrinsic resistance to flow. Assessing kinematic viscosity offers insight into a fluid's lubricant resistance under gravity's influence and elevated temperatures impact on flow characteristics [23]. To investigate the variations in nano coolant viscosity in response to temperature changes, Figure 5 displays the viscosity deviation due to temperature effects at different ratios.…”

Section: Kinematic Viscosity and Viscosity Index (Vi)mentioning

confidence: 99%

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Enhancing Heat Transfer in Compact Automotive Engines using Hybrid Nano Coolants

Hizanorhuda Zurghiba,

Kumaran Kadirgama,

Norazlianie Sazali

et al. 2023

ARASET

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This research aimed to compare the performance of a reduced-scale automotive radiator using single nano coolant (CNC and CuO) and its hybrid nano coolant (CNC and CuO nanoparticles) to enhance heat transmission. Three ratios of 70:30, 80:20, and 90:10 of hybrid nano coolants was tested. UV Vis stability characterization of the nanofluids showed that all samples were highly stable for up to 30 days. A modest concentration (0.01 vol per cent) of the hybrid nano coolant was shown to efficiently increase the heat transfer rate of a reduced-size automobile radiator, demonstrating that the heat transfer behaviour of the nano coolant was reliant on the particle volume percentage. The results show the potential use of hybrid nano coolants in increasing heat transfer efficiency, decreasing cooling system size by up to 71 percent, and thus lowering fuel consumption; these benefits have significant implications for developing more efficient cooling systems in various industrial applications. The experimental findings showed that 80:20 exhibited a significant amount of improvement in thermal properties. The consistency of the low volume concentration of hybrid nano coolants throughout the experiment is further evidence of their promise as a practical substitute for conventional cooling media in the compact size of an automotive engine cooling system.

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Section: Kinematic Viscosity and Viscosity Index (Vi)mentioning

confidence: 99%

Section: Kinematic Viscosity and Viscosity Index (Vi)mentioning

confidence: 99%

Enhancing Heat Transfer in Compact Automotive Engines using Hybrid Nano Coolants

Hizanorhuda Zurghiba,

Kumaran Kadirgama,

Norazlianie Sazali

et al. 2023

ARASET

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“…However, the differences between the kinds of additive particles used and types of oils used and the comparison between the obtained tribological properties are considered. According to the published manuscripts, different nanoparticles have been used, such as CNTs, mixing individually with biodiesel oil [37,38]; on the other hand, dual CNTs and GNs have been added to SAE [23]. The coefficient of friction and WSD with individual CNTs with biodiesel and engine oil was the highest at a content of 0.06 wt.% and 0.09 wt.%, respectively.…”

Section: Comparison Between Present Work and Previous Workmentioning

confidence: 99%

Tribological Performance and Rheological Properties of Engine Oil with Graphene Nano-Additives

et al. 2022

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Nanoparticles dispersed in lubricants are being studied for their ability to reduce friction and wear. This paper examines SAE 5W-30 oil enhanced with dispersed graphene nanoplates for tribological and rheological properties. Graphene nanoplate (GNs) concentration effects on the rheological and tribological properties of 5W-30 base oil (0.03, 0.06, 0.09, 0.12, and 0.15 wt percent) were tested. Under various loads, a four-ball testing model was used to conduct a tribological analysis (200, 400, 600, and 800 N). Kinematic viscosity is calculated, and base oil and nanofluid-added 5W30 lubricant are compared for thermal conductivity and flashpoint. Wear scar and coefficient of friction improved by 15% and 33% with nano-additives. When related to the base oil, the flashpoint, thermal conductivity, kinematic viscosity, and pour point all increased, by 25.4%, 77.4%, 29.9%, and 35.4%, respectively. The addition of GNs improved the properties of 5W30 engine oil.

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“…Hence, to mitigate such pollutant emissions, it is necessary to increase the share of alternative fuels that can directly be utilized in diesel engines. In this context, the major emerging alternative fuel for use in conventional diesel engines is biodiesel [2,3]. Biodiesels are promising fuels addressing the aforementioned environmental concerns since they are renewable and biodegradable [4][5][6], reducing the harmful emissions [7][8][9] and having the ability to directly be utilized in existing diesel engines with little or no modifications [10,11].…”

Section: Introductionmentioning

confidence: 99%

Experimental investigation of spray characteristics of ethyl esters in a constant volume chamber

Ulu

Yıldız

Özkol

et al. 2022

Biomass Conv. Bioref.

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In contrast, ethanol is produced from biogenic resources like maize, sugarcane, etc. Thus, biodiesel can be fully renewable if ethanol is used instead of methanol in the biodiesel production process.Besides, ethyl esters have extra advantages over methyl esters such that they can have better performances in cold weather. However, studies considering the characteristics of ethyl esters are limited in the literature, and these papers have fully focused on performance and emission characteristics. Any published paper investigating the spray characteristics of ethyl esters is not yet available. This paper brings a certain novelty by investigating the spray characteristics of various ethyl ester type biodiesels.

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Rheological characteristics and tribological performance of neem biodiesel–based nano oil added with MWCNT

Cited by 7 publications

References 41 publications

Enhancing Heat Transfer in Compact Automotive Engines using Hybrid Nano Coolants

Enhancing Heat Transfer in Compact Automotive Engines using Hybrid Nano Coolants

Tribological Performance and Rheological Properties of Engine Oil with Graphene Nano-Additives

Experimental investigation of spray characteristics of ethyl esters in a constant volume chamber

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