Results 11 to 20 of about 2,288,028 (348)

Multi-Physics Modeling of Steel Ingot Melting by Electric Arc Plasma and its Application to Electric Arc Furnace

open access: yesFrontiers in Materials, 2020
Arc melting is one of the commonly-used melting methods in modern material manufacturing. The present study established a numerical model coupling the electric arc plasma, solid melting, and liquid flow together to simulate the steel ingot melting ...
Yuchao Chen   +3 more
doaj   +2 more sources

Process Improvements for Direct Reduced Iron Melting in the Electric Arc Furnace with Emphasis on Slag Operation

open access: yesProcesses, 2021
Steelmaking based on direct reduced iron (DRI, and its compacted derivative hot briquetted iron, HBI) is an anticipated important global alternative to current steel production based on FeOx reduction in blast furnaces due to its lower specific CO2 ...
M. Kirschen, T. Hay, T. Echterhof
semanticscholar   +1 more source

Sustainable Recycling of Electric Arc Furnace Steel Slag as Aggregate in Concrete: Effects on the Environmental and Technical Performance

open access: yesSustainability, 2021
The aim of this research work was the evaluation of the feasibility to utilize industrial by-products, such as electric arc furnace steel slags, for sustainable concrete production. The paper evaluated the environmental and mechanical properties of steel
Alessandra Diotti   +4 more
semanticscholar   +1 more source

A Support Vector machine-Based method for parameter estimation of an electric arc furnace model

open access: yesElectric power systems research, 2021
In the iron and steel industry, electric arc furnaces (EAFs) are used in the melting and refining process of metals. They are known to demand large amounts of reactive power and cause significant power quality (PQ) problems due to their highly non-linear
J. Marulanda-Durango   +3 more
semanticscholar   +1 more source

A review on the fundamentals of hydrogen-based reduction and recycling concepts for electric arc furnace dust extended by a novel conceptualization

open access: yes, 2021
The European Green Deal aims to make Europe climate neutral by 2050. This circumstance requires the metallurgical industry to move from carbon-based processes to hydrogen application.
U. Brandner   +2 more
semanticscholar   +1 more source

A Review of Mathematical Process Models for the Electric Arc Furnace Process

open access: yesSteel Research International, 2020
The electric arc furnace is the main process unit in scrap‐based steelmaking. Owing to its importance, numerous mathematical models for predicting the course of the electric arc furnace process have been developed.
T. Hay   +3 more
semanticscholar   +1 more source

Comparative Analysis of Optical Radiation Emitted by Electric Arc Generated at AC and DC Voltage

open access: yesEnergies, 2020
The article presents a comparison of the spectra of electromagnetic radiation emitted by an electric arc. The spectrum ranges from ultraviolet through visible light to near infrared.
Łukasz Nagi   +2 more
doaj   +1 more source

Review of DC Series Arc Fault Testing Methods and Capability Assessment of Test Platforms for More-Electric Aircraft

open access: yesIEEE Transactions on Transportation Electrification, 2022
In the new era of increasingly electric aircraft, the need for reliable and safe electrical systems is more important than ever. In addition, the wide-scale adoption of dc distribution is considered a key enabling technology for more efficient aircraft ...
V. Psaras   +8 more
semanticscholar   +1 more source

INFLUENCE OF CHEMICAL COMPOUNDS ON THE FORMING OF ELECTRIC ARC

open access: yesNauka ta progres transportu, 2014
Purpose. The purpose of work is a comparative analysis of chemical compounds influence on the process of electric arc forming and condition of its burning. Methodology.
I. O. Vakulenko   +2 more
doaj   +1 more source

A New Short-Circuit Hybrid Device for the Protection of Low-Voltage Networks From the Effects of an Arc Fault

open access: yesIEEE Access, 2022
A high-current electric arc inside an electrical switchgear can be a source of danger to electrical equipment and technical personnel. The article shows that the use of hybrid connectors as an arc eliminator significantly shortens the time of electric ...
Karol Nowak   +2 more
doaj   +1 more source

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