Liquid structure of aluminum binary alloys characterized by electrical parameters under electromagnetic field

2006 ◽

Vol 1 ◽

pp. 191

Author(s):

G. Noviks

Keyword(s):

Electromagnetic Field ◽

High Frequency ◽

Optimal Parameter ◽

Solid Wastes ◽

Waste Processing ◽

Pyrolysis Process ◽

Organic Mass ◽

Electrical Parameters ◽

Environmentally Safe ◽

Best Parameters

The paper deals with the environmentally safe waste processing problem. The pyrolysis is one of the most prospective among different utilization methods of residuals. For hearing organic mass in the pyrolysis process up to 5500C author recommends to apply high frequency and high intensity electromagnetic fields. It is necessary to analyze relationships between waste electrical parameters and frequency of electromagnetic field to achieve optimal parameter of electromagnetic heating. For this purpose was worked out a device for measuring dielectric permittivity and dielectric losses in the range of electromagnetic frequencies between 0.05 – 50 MHz. The measurements were accomplished on the samplers composed of different quantity of organic and inorganic (dielectrics and conductors) materials. The methodology of calculation optimal physical and technical squares for implementation of suggested technology was applied and experimental data were analyzed. The best parameters of electromagnetic field for pyrolysis of solid wastes is frequency f=1,5 – 4∙106 Hz and electric intensity E=180 – 220 kV/m and E=390 – 40 kV/m for waste of different composition.

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Liquid-Liquid Structure Transition and its Effects on Solidification Behavior of Binary Alloys

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.554-556.714 ◽

2012 ◽

Vol 554-556 ◽

pp. 714-720

Author(s):

Yun Xi ◽

Xian Fen Li ◽

Fang Qiu Zu

Keyword(s):

Binary Alloys ◽

General Rule ◽

Liquid Structure ◽

Solidification Behavior ◽

Structure Transition

In our work, some anomalous changes, namely the temperature-induced liquid-liquid structure transitions, were observed at the temperature hundreds degrees above the corresponding liquidus in some binary alloys. Based on the results of liquid structure transitions, corresponding solidification experiments have been carried out on the alloys melted and held at the temperature above or under the liquid-liquid structure transition (L-LST), respectively. It is found that L-LST has a significant effect on solidification behavior and microstructure. There is a general rule that the super-cooling degree increases and the microstructure becomes finer cast from the liquid experienced L-LST.

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Magnetic field of a ribbon busbar of finite length

ITM Web of Conferences ◽

10.1051/itmconf/20181901010 ◽

2018 ◽

Vol 19 ◽

pp. 01010

Author(s):

Dariusz Kusiak ◽

Tomasz Szczegielniak ◽

Zygmunt Piątek

Keyword(s):

Magnetic Field ◽

Electromagnetic Field ◽

Finite Length ◽

Field Analysis ◽

Analytic Method ◽

Electrical Parameters ◽

The Magnetic Field

Using the analytic method based on the Biot-Savart law for the electromagnetic field, the distribution of the magnetic field of a ribbon busbar of finite length has been determined. The Mathematica program was used to visualize the solutions obtained. This allowed quick field analysis after changes of geometrical or electrical parameters of systems under examination.

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Correlation between liquid structure and glass forming ability in glassy Ag-based binary alloys

Science China Physics Mechanics and Astronomy ◽

10.1007/s11433-010-0137-7 ◽

2010 ◽

Vol 53 (3) ◽

pp. 399-404 ◽

Cited By ~ 2

Author(s):

XiaoQian Lü ◽

XiuFang Bian ◽

Nan Xiang ◽

Ran Jia

Keyword(s):

Binary Alloys ◽

Liquid Structure ◽

Glass Forming Ability ◽

Glass Forming

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Investigation of Electrical Parameters of Interleaved Conductors' Packages in High Power Electrotechnological Installations

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.792.495 ◽

2015 ◽

Vol 792 ◽

pp. 495-498 ◽

Cited By ~ 1

Author(s):

L.P. Goreva ◽

D.S. Vlasov ◽

M.S. Shvetsova

Keyword(s):

Electromagnetic Field ◽

Power Dissipation ◽

Modern Method ◽

Power Losses ◽

Ansys Software ◽

Electrical Parameters ◽

Secondary Current ◽

Current Leads ◽

Active Power Losses ◽

Magnetic Flux Compensation

Electric currents of the order 100 kA flow in secondary current leads of powerful electrotechnological installations. It causes active power losses and electromagnetic field power dissipation. To improve engineering-and-economical performance it is necessary to minimize pure resistance and inductance of current lead and symmetrize the parameters over phases while designing the installation. The paper considers approaches to formulate modern method for calculation pure resistance and inductance of secondary current leads in powerful electrotechnological installations.Interleaved conductors' packages have been examined as the longest partition of secondary current leads in ore-thermal furnace. The examination was carried out with numerical simulation of electromagnetic field of groups of interleaved water-cooled tubular buses (bus-packages) in ANSYS software. Dependencies of bus-packages pure resistance and inductance and their geometric parameters and interleaving ways for magnetic flux compensation have been obtained. Analysis of obtained results allows defining empiric formulae for calculation of electrical parameters of interleaved packages in powerful electrotechnological installations.

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