Results 31 to 40 of about 23,991 (249)

Phase Diagrams of Carbonate Materials at High Pressures, with Implications for Melting and Carbon Cycling in the Deep Earth

open access: yesGeophysical Monograph Series, Page 137-165., 2020

This book is Open Access. A digital copy can be downloaded for free from Wiley Online Library.

Explores the behavior of carbon in minerals, melts, and fluids under extreme conditions

Carbon trapped in diamonds and carbonate-bearing rocks in subduction zones are examples of the continuing exchange of substantial carbon ...
Konstantin Litasov   +3 more
wiley  

+2 more sources

Investigation on the lightning breakdown voltage of palm oil and coconut oil under non-uniform field [PDF]

open access: yes, 2014
The increasing interests on the Palm Oil (PO) and Coconut Oil (CO) as a potential alternative for dielectric insulating fluid in transformers encourage a number of researches on different aspects of these oils.
Ab Kadir, Mohd Zainal Abidin   +6 more
core   +1 more source

Copper contaminated insulating mineral oils-testing and investigations

open access: yesIEEE Transactions on Dielectrics and Electrical Insulation, 2013
Reactions between the liquid insulation and the copper conductors in power transformers and other electrical apparatus may lead to the formation of dissolved and suspended copper in the insulating oil. In this work a study concerning the correlation between the copper form and the dielectric properties of the fluid is presented.
DE CARLO, Rosa Maria   +4 more
openaire   +1 more source

Simultaneous Production of Transformer Insulating Oil and Value-Added Glycerol Carbonates from Soybean Oil by Lipase-Catalyzed Transesterification in Dimethyl Carbonate

open access: yesEnergies, 2017
Fatty acid methyl esters (FAMEs), as a transformer insulating oil, and value-added glycerol derivatives were simultaneously synthesized from soybean oil by transesterification using Lipozyme 435 in dimethyl carbonate (DMC).
Keon Hee Kim, Eun Yeol Lee
doaj   +1 more source

A study of correlation between the ect and ehd properties of different aged insulating oil mixtures that can Be an alternative to mineral oil for the insulation and cooling of power transformers

open access: yesHeliyon, 2023
This article presents the hypothetical steps leading to the damage of power transformers in order to examine whether there is a correlation between the electrostatic properties (ECT) and the electro-hydrodynamic properties (EHD) of insulating oils ...
Jilani Rouabeh   +4 more
doaj   +1 more source

Analysis of magnetic treatment of production fluid with high content of asphalt-resin-paraffin deposits [PDF]

open access: yes, 2017
Purpose. Justification of magnetic field application in order to prevent formation of asphalt-resin-paraffin deposits (ARPD) in oil and gas equipment, and consider some current views on the state of ARPD problem in oilfield equipment and possible methods
Kharchenko, M   +3 more
core   +2 more sources

Thermal behavior of a buoyancy-driven oil-immersed transformer and coolant performance assessment

open access: yesCase Studies in Thermal Engineering
The dependable operation and effective thermal management of transformers are essential to power-system stability. To tackle this, a numerical model for the buoyancy-driven oil-immersed transformer cooling system is established, focusing on the heat ...
Qiang Gao, Zhe Zhang, Dong Liu
doaj   +1 more source

Android based application for monitoring patients health and medicine intake [PDF]

open access: yes, 2017
The number of individuals who suffer from chronic disease continues to increase worldwide (WHO, 2015). Health awareness together with the improvement in living conditions and treatment has increased the life expectancy of people suffers from chronic ...
Mohamed, Rozlini   +3 more
core   +2 more sources

Influence of Area and Volume Effect on Dielectric Behaviour of the Mineral Oil-Based Nanofluids

open access: yesEnergies, 2022
Transformer oil is conventionally used as an insulating liquid for the purpose of insulation and cooling in power transformers. The rise in the power demand has put stress on the existing insulation system used for power transmission.
Suhaib Ahmad Khan   +4 more
doaj   +1 more source

The influence of magnetite nano particles on the behavior of insulating oils for pulse power applications [PDF]

open access: yes, 2011
The effects of the addition of magnetite nanoparticles on the breakdown strength of three insulating liquids have been examined. The liquids considered are: a mineral transformer oil; a synthetic ester liquid, Midel 7131, and a specialist high ...
Given, M   +6 more
core  

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