419 Electromagnetic field generated by induction heating around infinite plate

2009 ◽  
Vol 2009.84 (0) ◽  
pp. _4-18_
Author(s):  
Eiji MATSUSHIMA ◽  
Tadahiro KAWASHIMA
Keyword(s):  
Electromagnetic Field ◽  
Induction Heating ◽  
Infinite Plate

Numerical Simulation of Electromagnetic Field in the Cold Crucible

2013 ◽  
Author(s):  
Jinlong Zhang ◽  
Pengfei Li
Keyword(s):  
Heat Transfer ◽  
Electromagnetic Field ◽  
Induction Heating ◽  
Electromagnetic Force ◽  
Power Efficiency ◽  
Cooling Water ◽  
Joule Heat ◽  
Cold Crucible ◽  
Primary Problem ◽  
Frequency Power

SNPTRD was planning to employ cold crucible induction heating technique to investigate the corium pool heat transfer, using the UO2 and ZrO2 mixture as the simulated corium pool. Compared with the actual situation, the primary problem of the cold crucible induction heating was the additional introduction of electromagnetic field. To investigate the cold crucible applicability in simulating the corium pool heat transfer, the distribution of joule heat inside cold crucible and the magnitude of electromagnetic force were carried out. To be more suitable for heat transfer test research, the shape of cold crucible was changed to hemisphere, and the cooling water channels were set horizontally. The simulation results indicated that joule heat distribution would be more uniform with lower frequency power but considering power efficiency, there was only one best frequency. The magnitude of electromagnetic force can be ignored compared to the gravity on the natural convection research.

On Medium Frequency Induction Heating Applied in the Energy-Saving Light Industrial Equipments and its Electromagnetic Radiation

2011 ◽  
Vol 697-698 ◽  
pp. 533-536 ◽  
Author(s):  
Zi Qiang Zhang ◽  
G.Y. Yu ◽  
S.B. Chen ◽  
Z.D. Zheng ◽  
R.D. Li ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Electromagnetic Field ◽  
Field Strength ◽  
Energy Saving ◽  
Induction Heating ◽  
Critical State ◽  
Industrial Equipment ◽  
Medium Frequency ◽  
Experimental Conditions ◽  
Electromagnetic Field Strength

Increasingly, induction heaters are being widely applied to the energy-saving light industrial equipment. But their electromagnetic radiation’s impact on the environment can’t be ignored. In the paper, several medium frequency induction heaters had been studied under different experimental conditions using E61 electromagnetic field strength analyzer, and as its supplement, the racetrack-coils induction heater had been simulated using ANSYS. According to ICNIRP guidelines, the results show that their radiation is generally in critical state, and magnetic field strength is superstandard in some areas. And countermeasures to the problems are advised.

scholarly journals Molten Steel Flow, Heat Transfer and Inclusion Distribution in a Single-Strand Continuous Casting Tundish with Induction Heating

Metals ◽  
2021 ◽  
Vol 11 (10) ◽  
pp. 1536
Author(s):  
Weixue Dou ◽  
Zexi Yang ◽  
Ziming Wang ◽  
Qiang Yue
Keyword(s):  
Heat Transfer ◽  
Electromagnetic Field ◽  
Induction Heating ◽  
Molten Steel ◽  
Single Strand ◽  
Single Vortex ◽  
Flow Heat ◽  
Inclusion Distribution ◽  
Steel Flow ◽  
Channel Type

The electrical magnetic field plays an important role in controlling the molten steel flow, heat transfer and migration of inclusions. However, industrial tests for inclusion distribution in a single-strand tundish under the electromagnetic field have never been reported before. The distribution of non-metallic inclusions in steel is still uncertain in an induction-heating (IH) tundish. In the present study, therefore, using numerical simulation methods, we simulate the flow and heat transfer characteristics of molten steel in the channel-type IH tundish, especially in the channel. At the same time, industrial trials were carried out on the channel-type IH tundish, and the temperature distribution of the tundish with or without IH under different pouring ladle furnace was analyzed. The method of scanning electron microscopy was employed to obtain the distribution of inclusions on different channel sections. The flow characteristics of molten steel in the channel change with flow time, and the single vortex and double vortex alternately occur under the electromagnetic field. The heat loss of molten steel can be compensated in a tundish with IH. As heating for 145 s, the temperature of the molten steel in the channel increases by 31.8 K. It demonstrates that the temperature of the molten steel in the tundish can be kept at the target value of around 1813 K, fluctuating up and down 3 K after using electromagnetic IH. In the IH channel, the large inclusions with diameters greater than 9 μm are more concentrated at the edge of the channel, and the effect of IH on the inclusion with diameters less than 9 μm has little effect.

scholarly journals Low-temperature induction heating of flat metal objects in a traveling electromagnetic field

2022 ◽  
Vol 1211 (1) ◽  
pp. 012015
Author(s):  
A N Kachanov ◽  
Y S Stepanov ◽  
N A Kachanov ◽  
V A Chernyshov ◽  
D A Korenkov
Keyword(s):  
Electromagnetic Field ◽  
Low Temperature ◽  
Edge Effect ◽  
Induction Heating ◽  
Eddy Currents ◽  
Magnetic Circuit ◽  
Heating System ◽  
Open Circuit ◽  
Longitudinal Edge ◽  
Temperature Induction

Abstract The article discusses possible options for a low-temperature induction heating system (LTIHS) of flat metal products in a traveling electromagnetic field. The problem of calculating eddy currents, active and reactive powers induced in a heated flat object, as well as electromagnetic forces acting on the object moving it in a given direction, is posed and solved. A mathematical model has been developed that takes into account the dependence of the influence on the main parameters of the electromagnetic field of the following factors: geometric dimensions of the air gap between the poles of the magnetic circuit and the heated flat body; the longitudinal edge effect caused by the open circuit of the magnetic circuit of the inductor, as well as the transverse edge effect associated with the appearance of the longitudinal components of eddy currents in a heated flat object. The solution of particular problems of LTIHS in one- and two-dimensional formulation allows them to be simplified and to perform calculations for various design variants of induction heating devices with a traveling electromagnetic field, using a one-dimensional model that explicitly takes into account the features of electromagnetic processes in the systems under study.

Modeling of induction heating of thermoplastic composites

2020 ◽  
pp. 089270572091197
Author(s):  
Maximilian Holland ◽  
Michel JL van Tooren ◽  
Darun Barazanchy ◽  
Jaspreet Pandher
Keyword(s):  
Electromagnetic Field ◽  
Temperature Distribution ◽  
Heat Generation ◽  
Induction Heating ◽  
Composite Plates ◽  
Current Density Distribution ◽  
Element Model ◽  
Layered Composite ◽  
Thermoplastic Composites ◽  
Current Densities

In this article, a hybrid finite element model is presented for the simulation of induction heating of layered composite plates. Modeling includes the alternating electromagnetic field generated by an alternating current running through a coil, the current densities in the composite plate resulting from the electromagnetic field, the heat generation resulting from the current density distribution, and the heat transfer resulting from the nonuniform heat generation in the plate and the temperature distribution in the plate. The different elements of the model are shown to capture the time-dependent temperature distribution resulting from a coil moving over the surface of a composite laminate.

Electromagnetic-Thermal Coupling Simulation by ANSYS Multiphysics of Induction Heater

2014 ◽  
Vol 701-702 ◽  
pp. 820-825 ◽  
Author(s):  
Ya Peng Jiang ◽  
Dong Wang ◽  
Qing Hu Zhang ◽  
Jun Quan Chen
Keyword(s):  
Electromagnetic Field ◽  
Induction Heating ◽  
Thermal Field ◽  
Heating Process ◽  
Thermal Coupling ◽  
Multiphysics Simulation ◽  
Strongly Coupled ◽  
Induction Heater

Induction heating is widely used in Industry, it’s meaningful to control the process of heating accurately. In the heating process, electromagnetic field and Thermal field are strongly coupled. Through the comparison of two-way coupled and single-way coupled, this paper verified the importance of multiphysics simulation in heating process by simulation of the cycle induction heater.

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