Natural ester and synthetic ester fluids, applications and maintenance

Lashbrook, Mark; Al-Amin, H.; Martin, Ruth A.

doi:10.1109/jieeec.2017.8051397

Cited by 10 publications

(3 citation statements)

References 1 publication

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“…According to Lashbrook et al [149], the methods of dissolved gases analysis applied to mineral oils may be still valid for esters in most cases. However, it is necessary to be vigilant with the stray gassing of ethane in natural esters.…”

Section: Dga-based Diagnosis Of Synthetic Ester-filled Transformersmentioning

confidence: 99%

A Review on Synthetic Ester Liquids for Transformer Applications

et al. 2020

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Synthetic esters have become more and more popular in last few decades, explaining the increasing number of units filled with this liquid year by year. They have been investigated under different aspects, both from the fundamental point of view and breakdown mechanisms, well as from the application point of view. However, their use in high voltage equipment is always a challenge and deeper knowledge of the various aspects that can be encountered in their exploitation is needed. The intent of this review paper is to present the recent research progress on synthetic ester liquid in relation to the selected issues, most important for ester development in the authors’ opinion. The described issues are the breakdown performance of synthetic esters, lightning impulse strength and pre-breakdown phenomena of synthetic esters, synthetic esters-based nanofluids, combined paper-synthetic ester based insulating systems, application of synthetic ester for retro-filling and drying of mineral oil-immersed transformers, DGA(dissolved gas analysis)-based diagnosis of synthetic esters filled transformers as well as static electrification of synthetic esters. The different sections are based both on the data available in the literature, but above all on the authors’ own experience from their research work on synthetic ester liquids for electrical application purposes.

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Section: Dga-based Diagnosis Of Synthetic Ester-filled Transformersmentioning

confidence: 99%

A Review on Synthetic Ester Liquids for Transformer Applications

et al. 2020

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“…While both mineral and natural oils are suitable for insulation and cooling, their atomic structures are significantly different [33]. The chemical differences between mineral and natural oils must be taken into account for asset operators to understand how to monitor and maintain these liquids [34].…”

Section: General Differences Between Mineral Oil and Natural Estermentioning

confidence: 99%

Dissolved gas analysis differences between natural esters and mineral oils used in power transformers: a review

Meira

Ruschetti

Álvarez

et al. 2019

IET Generation, Transmission & Distribution

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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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Natural ester and synthetic ester fluids, applications and maintenance

Cited by 10 publications

References 1 publication

A Review on Synthetic Ester Liquids for Transformer Applications

A Review on Synthetic Ester Liquids for Transformer Applications

Dissolved gas analysis differences between natural esters and mineral oils used in power transformers: a review

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

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