By Hans De Keulenaer / Published on Fri, 2008-12-12 16:26
Yulia Pleshivtseva, Natalya Zaikina, Bernard Nacke, Alexander Nikanorov
Heating by induction is a popular approach for heat treatment of metal components in modern industry. Conventional induction heaters that are widely used for through heating of billets before hot forming have high resistive losses in hollow water-cooled copper windings. In average, 40-50% of the total power is removed by the cooling water.
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By Hans De Keulenaer / Published on Fri, 2008-12-12 16:24
Vladimir Ivanov, Boris Nikitin, Sergey Brykov, Ganna Eilenkrig, Vladimir Rusanov , Viktor Zhivotov, Sergey Dresvin, Dmitry Ivanov, Nguen Kuok Shi
The paper presents highly efficient plasma technologies that offer opportunities for improving ecological conditions of human life and activities due to separation, processing and utilization of hydrogen sulphide and carbon dioxide produced during processing of natural hydrogen-sulphide-containing gas, petroleum cleaning from sulphur, and in metallurgy during hydrogen and carbon reduction of extracted product.
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By Hans De Keulenaer / Published on Fri, 2008-12-12 16:20
Mikael Strupinskiy, Nikolai Khrenkov
Methods have been developed for electromagnetic and electrothermal calculation of coaxial induction-resistive heating systems for pipelines realized in form of application program package. Adequacy of the calculation methods is experimentally proven.
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By Hans De Keulenaer / Published on Fri, 2008-12-12 16:18
Nguyen-Kuok Shi
In this paper are presented basic results on modeling and experimental investigation of nonequilibrium plasma of free arc in argon (I=50-180 A, P=3-7 kW, Q=10-40 l/min).
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By Hans De Keulenaer / Published on Fri, 2008-12-12 16:16
Andrzej Kulakowski, Miroslaw Wcislik
The paper deals with a mathematical model of a sucking aggregate. The parameters of the aggregate has been identified. The model parameters depends on the angle of rotor rotation related to stator. There has been worked out a simulation model of the aggregate, also there have been carried out verifying research. A simulation analysis of the power loss in aggregate is presented.
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By Hans De Keulenaer / Published on Fri, 2008-12-12 16:12
Slawomir Golak, Roman Przylucki
The phenomenon of meniscus in the induction furnaces are not always desired because of adversely affecting the quality of the molten metal. The study presented in this paper dealt with the influence of the inductor position on the degree of the deformation of molten copper surface.
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By Hans De Keulenaer / Published on Fri, 2008-12-12 16:10
Yelena Ptitsyna, Alexandr Kuwaldin
The article states the theoretical aspects of complex form current influence on the power supply network and the results of industrial experiments at electrolysis and gas-discharge plants with complex form current power supply.
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By Hans De Keulenaer / Published on Fri, 2008-12-12 16:09
Alexandr Kuwaldin, Alexandr Lepieszkin
Mathematical modelling of regimes of induction hardening of details
in view of phase transformations, non-stationary thermal and
thermostress state, residual stresses and fatigue has been carried out.
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By Hans De Keulenaer / Published on Thu, 2008-11-27 20:35
Andris Jakovics, Vadims Geza, Bernd Halbedel
New equipment for electromagnetic processing of weak conducting material melts was numerically investigated. Significance of different effects and physical phenomena was evaluated. Complicated melt flow structure was obtained at specific equipment parameters.
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By Hans De Keulenaer / Published on Thu, 2008-11-27 20:33
Yuri Petrov, Andrey Pechenkov, Igor Pozniak, Yuri Udalov, Dmitry Grishchenko, Torge Behrens, Maxim Kydryash, Benjamin Niemann, Bernard Nacke
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By Hans De Keulenaer / Published on Thu, 2008-11-27 20:28
Michal Kaczmarek, Artur Szczêsny
Conductive disturbances in the power network may affect in abnormal operation of the electric energy loads and contemporary protection circuits connected to the voltage transformer. In certain condition voltage transformers may also become a source of the conductive disturbances which may affect the power quality.
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By Hans De Keulenaer / Published on Wed, 2008-11-05 12:20
Miroslaw Wciœlik, Robert Kazala, Michal Kaskawski, Tomasz Kwaœniewski
The monitoring system of power quality in a network is introduced. The paper deals with functionality, hardware and software of the system. Algorithms of data processing as well as ways of improving processing accuracy of signal processor are presented. Sample results observed by means of the developed system are shown.
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By Hans De Keulenaer / Published on Wed, 2008-11-05 12:17
Uldis Iljins, Juris Skujans, Imants Ziemelis, Uldis Gross
Theoretical and experimental investigation of the use of electric measuring possibilities for foam gypsum local moisture measuring has been carried out. It is stated that conduct-metrical (resistance) measurements are acceptable for samples of foam gypsum with moisture content above 15 %, but capacitance, under 15 %.
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By Hans De Keulenaer / Published on Wed, 2008-11-05 12:15
Sergey Frolov, Nikolai Samsonov, Yuri Matveyev, Alexey Snitsarenko, Yuri Pleshkov
All over the world, electro-technologies are acquiring increasing importance in real production, and the welfare of mankind depends on the development of and increase in the efficiency and profitability of electro-technologies.
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By Hans De Keulenaer / Published on Wed, 2008-11-05 12:13
Janis Valdmanis, Aleksandrs Cipijs
New effects and problems in metamaterials physics are discussed. Some results of investigations in low frequency range are presented. Studies of separate element, interactions effects between elements are made. Character of resonant interaction and theoretical aspects of received results are discussed.
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