Synthetic and natural ester-based nanofluids with fullerene and magnetite nanoparticles – An experimental AC breakdown voltage study

Šárpataky, Miloš; Kurimský, Juraj; Rajňák, Michal; Paulovičová, K.; Krbal, Michal; Pelikan, Ludek

doi:10.1016/j.molliq.2022.120802

Cited by 7 publications

(2 citation statements)

References 31 publications

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“…The recent approach to enhancing the dielectric properties of biodegradable oils relies on nanoparticles incorporation, so creating stable colloidal suspensions (nanofluids) [ 3 ]. Numerous studies have been carried out on the use of appropriately sized nanoparticles and concentrations with the aim to improve the dielectric performance [ [4] , [5] , [6] , [7] , [8] , [9] ]. The knowledge on the effect of nanoparticles on dielectric properties of insulating liquids is of importance due to the fact that various nanoparticles (metal and non-metal) can detach from the equipment and leak into the oil [ 10 ].…”

Section: Introductionmentioning

confidence: 99%

Electric partial discharges in biodegradable oil-based ferrofluids: A study on effects of magnetic field and nanoparticle concentration

Kurimský,

Rajňák,

Paulovičová

et al. 2024

Heliyon

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Section: Introductionmentioning

confidence: 99%

Electric partial discharges in biodegradable oil-based ferrofluids: A study on effects of magnetic field and nanoparticle concentration

Kurimský,

Rajňák,

Paulovičová

et al. 2024

Heliyon

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“…To investigate additional thermal solutions for electric vehicle batteries, many studies use hydrofluoroether [38,39] or natural and synthetic esters [31,40,41]. There is an effort to demonstrate that by enhancing their properties with nanoparticles, biodegradable materials can match the properties of mineral oil [42,43].…”

Section: Introductionmentioning

confidence: 99%

Heat Transfer Optimization of an Electronic Control Unit Immersed in Forced Liquid Coolant

et al. 2023

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The current paper aims to present a cooling concept for future centralized platforms of ECUs (Electronic Control Units) from the automotive industry that involves grouping multiple electronic devices into a single system and cooling them with forced convection dielectric coolant. The enhancement consists of replacing the inside air of the module with a dielectric coolant that has a higher thermal conductivity than air and employing an additional prototype system that aids in forced liquid cooling. To meet automotive requirements, the experiments were exposed to an ambient temperature of 85 °C. Temperature measurements on these solutions’ hot spots were compared to those on a thermal paste-only reference electronic module. This study used DFSS (Design for Six Sigma) techniques to determine the ideal pump flow rate, fan air flow rate, and liquid volume in the housing, leading to an optimization in heat dissipation. Finding a trustworthy transfer function that could forecast the impact of the crucial design parameters that had been found was the main goal. The electronics cooled by forced convection coolant improved heat dissipation by up to 60% when compared to the reference module. This demonstrates that the DoE (Design of Experiments) method, which is based on a limited number of measurements, can estimate the behavior of the ECU without the need for a more involved theoretical framework.

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Analysis of impulse withstand voltage of ester-based nanofluids

Kurimský,

Rajňák,

Šárpataky

et al. 2024

Surfaces and Interfaces

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Synthetic and natural ester-based nanofluids with fullerene and magnetite nanoparticles – An experimental AC breakdown voltage study

Cited by 7 publications

References 31 publications

Electric partial discharges in biodegradable oil-based ferrofluids: A study on effects of magnetic field and nanoparticle concentration

Electric partial discharges in biodegradable oil-based ferrofluids: A study on effects of magnetic field and nanoparticle concentration

Heat Transfer Optimization of an Electronic Control Unit Immersed in Forced Liquid Coolant

Analysis of impulse withstand voltage of ester-based nanofluids

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