Results 71 to 80 of about 25,281,968 (246)

Advancing thermal stability in natural ester oil-paper insulation systems via precision nanostructuring with parylene films: Experimental and molecular-level comprehensive assessment

open access: yesPolymer Testing
The oil-paper insulation system in eco-friendly fire-retardant transformers depends on hydrophilic natural ester insulating oil. Moisture within the system synergistically interacts with aging, worsening oil-paper insulation degradation and hastening ...
Feipeng Wang   +7 more
doaj   +1 more source

Application of molecular simulation in transformer oil–paper insulation

open access: yesThe Journal of Engineering, 2019
Molecular simulation technology is a new technology emerging with the rapid development of computer technology. It has the advantages of clear microscopic models, in-depth and precise calculation etc., it has been widely used in the oil–paper insulation ...
Xia Xiao   +4 more
doaj   +1 more source

Circular Transformation in the Silk Sector: A Fuzzy Delphi–DEMATEL Analysis of Critical Factors

open access: yesBusiness Strategy and the Environment, EarlyView.
ABSTRACT The circular transformation in the silk industry is crucial for enhancing resource efficiency and minimizing waste. Despite growing interest in circularity within the textile sector, the silk industry remains underexplored. This study addresses this gap by systematically assessing the barriers and enablers influencing circular economy adoption
Rabia Hassan   +3 more
wiley   +1 more source

Evaluation of paper insulation of power transformers based on the content of 2-furfural in mineral oil corrected to a reference temperature of 20ºc [PDF]

open access: yesZbornik Radova: Elektrotehnički Institut "Nikola Tesla", 2019
The reliability of power transformers operation largely depends on the insulation system condition, especially on the condition of paper insulation.
Vasović Valentina   +3 more
doaj  

Regenerative Business Between Normative Ambition and Managerial Practice: A Systematic Review Through the Integrated Management Model

open access: yesBusiness Strategy and the Environment, EarlyView.
ABSTRACT As the regenerative rhetoric spreads across research and practice, management literature remains fragmented, with no coherent account of how regenerative principles are defined, governed, and enacted at the organizational level. This systematic literature review synthesizes 36 peer‐reviewed articles (2017–2025) through the lens of the ...
Lena Marie Kaufmann, Stephan Hankammer
wiley   +1 more source

Study of the Impact of Initial Moisture Content in Oil Impregnated Insulation Paper on Thermal Aging Rate of Condenser Bushing

open access: yesEnergies, 2015
This paper studied the impact of moisture on the correlated characteristics of the condenser bushings oil-paper insulation system. The oil-impregnated paper samples underwent accelerated thermal aging at 130 °C after preparation at different initial ...
Youyuan Wang   +3 more
doaj   +1 more source

Graphene Materials for Sustainable Energy Applications: A Contemporary Perspective

open access: yesCarbon Energy, EarlyView.
ABSTRACT Graphene has garnered significant attention as a promising material with great potential for contributing to sustainable energy initiatives, such as RE100 (100% renewable energy initiative) and CF100 (100% carbon‐free initiative). This review aims to explore the potential of graphene for advancing renewable energy applications by highlighting
Niraj Kumar   +3 more
wiley   +1 more source

Applications of Biomaterials in Separators for Secondary Batteries

open access: yesCarbon Energy, EarlyView.
In this review, biomaterial‐based separators are reviewed as sustainable alternatives to conventional polyolefin‐based separators. For 12 different natural polymers, spanning from Protista, Plantae, and Animalia, viable strategies for synthesizing biomass‐based separators are described.
Jongyoung Choi   +3 more
wiley   +1 more source

Simulation of dielectric frequency response of transformer insulation system

open access: yes, 2013
Frequency domain spectroscopy has been widely used to monitor the condition of insulation system in power transformers. For a core type of transformer, a simplified XY model of a duct has been developed which allows one to examine the contribution from ...
Yu, Guo, Chen, George
core   +1 more source

Impact of Low Molecular Weight Acids on Oil Impregnated Paper Insulation Degradation

open access: yesEnergies, 2018
Aging of a power transformer’s insulation system produces carboxylic acids. These acids—acetic, formic and levulinic—are absorbed by the paper insulating material, thus accelerating the degradation of the whole insulation system.
Kakou D. Kouassi   +5 more
doaj   +1 more source

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