Performance of 450 kW permanent magnet heater for aluminum billets

Purpose The purpose of this paper is to present the main experimental results obtained on the first prototype of an innovative induction heating system. MAGNHEAT was a LIFE project, funded by EU Commission, proposed to demonstrate the possibility of industrial application of a new technology for the induction heating of aluminum billets before extrusion. This technology uses permanent magnet heaters (PMHs), which constitute a high efficiency solution for the heating of high conductive metals. Design/methodology/approach The paper briefly describes the main steps of the project: the design of the PMH, the realization and installation of the demonstrator on an extrusion production line of Pandolfo Alluminio SpA and, mostly, the performance of the system. Findings The main results achieved during the preliminary tests on an industrial line have been summarized by evaluating some key performance indicators, as reported in the paper. Originality/value The new technology allows a significant reduction of the energy consumption and guarantees the same performance of a classical induction heater.

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Development of barrel heating system in injection molding machine via induction heating

Rapid Prototyping Journal ◽

10.1108/rpj-06-2013-0062 ◽

2015 ◽

Vol 21 (3) ◽

pp. 244-249 ◽

Cited By ~ 3

Author(s):

Huy-Tien Bui ◽

Sheng-Jye Hwang

Keyword(s):

Temperature Distribution ◽

Magnetic Flux ◽

Induction Heating ◽

Heating System ◽

Resistance Heating ◽

Uniform Temperature ◽

Content Type ◽

Uniform Temperature Distribution ◽

Proper Design ◽

Induction Heating System

Purpose – The purpose of this paper is to develop a barrel heating system using induction heating instead of resistance heating. And, a working coil for the induction heating system was designed so that the barrel has uniform temperature distribution. Design/methodology/approach – A coupling design combining the pitch of turns of working coil with the magnetic flux concentrators in the barrel induction heating system was developed to achieve uniform temperature distribution which was approximately the same as temperature uniformity obtained from that of resistance heating system. Findings – In contrast to resistance heating method, induction heating is more efficient because the heating is directly applied on the work-piece. Its heating rate is higher than that of resistance heating method. However, the uneven temperature distribution in the barrel is the main disadvantage of the induction heating system. But, with proper design of adjusting the pitch of turns at the center of working coil and adding magnetic flux concentrators at areas with lower magnetic flux, the barrel heating system via induction can achieve temperature distribution uniformity. Originality/value – Under proper design of working coil, the barrel heating system by induction method can achieve the same uniform temperature distribution as the barrel heated by resistance method, and could be practically used in an injection molding machine.

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On the frequency control in high efficiency induction heating system with resonant inverter

2017 10th International Symposium on Advanced Topics in Electrical Engineering (ATEE) ◽

10.1109/atee.2017.7905184 ◽

2017 ◽

Cited By ~ 1

Author(s):

Mihaela Popescu ◽

Alexandru Bitoleanu ◽

Mircea Dobriceanu

Keyword(s):

Induction Heating ◽

High Efficiency ◽

Frequency Control ◽

Heating System ◽

Resonant Inverter ◽

Induction Heating System

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Optimal design methods for the uniform heating of tube ends for stress relieving

COMPEL The International Journal for Computation and Mathematics in Electrical and Electronic Engineering ◽

10.1108/compel-05-2019-0204 ◽

2020 ◽

Vol 39 (1) ◽

pp. 12-20

Author(s):

Alexander Aliferov ◽

Paolo Di Barba ◽

Fabrizio Dughiero ◽

Michele Forzan ◽

Sergio Lupi ◽

...

Keyword(s):

Induction Heating ◽

Heating System ◽

Optimization Methods ◽

Steel Tube ◽

Genetic Optimization ◽

Uniform Heating ◽

Content Type ◽

Design Variables ◽

Stress Relieving ◽

Induction Heating System

Purpose An inductor for the uniform heating of the extremity of a ferromagnetic steel tube for stress relieving is considered. The main goal of the study is to investigate the possibility to achieve a reasonable design of the inductor when dealing with many design variables. Design/methodology/approach Genetic optimization algorithms are used for this purpose, demonstrating the applicability of these techniques to the design of induction heating inductors. Genetic algorithms provide to the designer several optimal solutions belonging to Pareto Front, and this way they allow choosing the solution that better fits the technological requirements. In any case, the designer has to adapt the chosen solution to fit in with the real possibilities in industrial application. Findings The study demonstrates that automatic optimization methods may help the designer of the induction heating system to solve complex problems with very conflicting technological requirements. Originality/value In the paper, a problem with a high number of design variables is solved. Moreover, the goals of the optimization process are strongly conflicting, and the proposed problem is a challenging one.

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An adaptively controlled high-efficiency induction heating system using power MOSFET inverter.

IEEJ Transactions on Industry Applications ◽

10.1541/ieejias.107.1347 ◽

1987 ◽

Vol 107 (11) ◽

pp. 1347-1354

Author(s):

Ju Hong Kim ◽

Hirotami Nakano ◽

Tsuyoshi Matsuo ◽

Kougi Iwata

Keyword(s):

Induction Heating ◽

High Efficiency ◽

Heating System ◽

Power Mosfet ◽

Induction Heating System

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Innovative electrotechnological systems to provide the temperature modes of technological pipelines

Power and Autonomous equipment ◽

10.32464/2618-8716-2019-2-1-29-39 ◽

2019 ◽

Vol 2 (1) ◽

pp. 29-39 ◽

Cited By ~ 1

Author(s):

S. G. Konesev ◽

P. A. Khlyupin

Keyword(s):

Induction Heating ◽

Thermal Exposure ◽

Heating System ◽

The Arctic ◽

Process Conditions ◽

Heating Systems ◽

Fluid Properties ◽

Low Efficiency ◽

Extreme North ◽

Induction Heating System

Introduction: the systems of thermal effects on thermo-dependent, viscous and highly viscous liquids under conditions of the Arctic and the Extreme North are considered. Low efficiency and danger of heating systems based on burned hydrocarbons, heated liquids and steam are shown. Electrothermal heating systems used to maintain thermo-dependent fluids in a fluid state are considered. The evaluation of the effectiveness of the application of the most common electrothermal system — heating cables (tapes). The most effective electrothermal system based on induction technologies has been determined. Materials and methods: considered methods of thermal exposure to maintain the fluid properties of thermo-dependent fluids at low extreme temperatures. Results: presents an induction heating system and options for its implementation in the Extreme North and the Arctic. Conclusions: induction heating system to minimize loss of product quality, improve the system performance under changing process conditions, eliminate fire product, to reduce the influence of the human factor.

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Study on Wireless Temperature Measurement Induction Heating System using Magnetic Properties of Mixture of Resovist® and Ferromagnetic Implant with Low Curie Temperature

IEEJ Transactions on Fundamentals and Materials ◽

10.1541/ieejfms.139.38 ◽

2019 ◽

Vol 139 (1) ◽

pp. 38-44

Author(s):

Fumitaka Aki ◽

Tonthat Loi ◽

Hajime Saito ◽

Noboru Yoshimura ◽

Kazutaka Mitobe

Keyword(s):

Magnetic Properties ◽

Curie Temperature ◽

Temperature Measurement ◽

Induction Heating ◽

Heating System ◽

Induction Heating System

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Dimensionamiento de un horno de fundición por inducción electromagnética y cálculo de los parámetros eléctricos

Revista de Ingeniería Eléctrica ◽

10.35429/jee.2019.8.3.1.15 ◽

2019 ◽

pp. 1-15

Author(s):

Arnulfo Pérez-Pérez ◽

Jorge Sergio Téllez-Martínez ◽

Gregorio Hortelano-Capetillo ◽

Jesús Israel Barraza-Fierro

Keyword(s):

Induction Heating ◽

Power Supply ◽

Electromagnetic Induction ◽

Cast Steel ◽

Electrical Power ◽

Heating System ◽

Heating Time ◽

Ferrous Alloys ◽

Electromagnetic Induction Heating ◽

Induction Heating System

In this work, the dimensions of a furnace for melting of ferrous alloys were determined. The furnace has an electromagnetic induction heating system. In addition, the parameters of electrical power supply such as frequency and power were calculated. A 5kg cast steel mass with a density of 7.81 kg / dm3 was proposed. This corresponds to a crucible volume of 0.641 dm3. The frequency was obtained from tables, which take into account the diameter of the crucible, and its value was 1 KHz. The energy consumption was determined with the heat required to bring the steel to the temperature of 1740 K, the energy losses through the walls, bottom and top of the crucible. This value was divided between the heating time (30 minutes) and resulted in a power of 4.5 KW. The development of the calculations shows that the induction heating is an efficient process and allows a fast melting of ferrous alloys.

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