Analysis of coil temperature rise in electromagnetic forming with coupled cooling method

The long-life driving coil is the prerequisite for electromagnetic forming industrial application. Up to date, the temperature rise is one of the major factors that restrain its working life. For the purpose of reducing the temperature rise of the driving coil, this paper proposes a new coupled cool...

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Bibliographic Details
Published inInternational journal of applied electromagnetics and mechanics Vol. 63; no. 1; pp. 45 - 58
Main Authors Qiu, Li, Deng, Kui, Li, Yantao, Tian, Xi, Xiong, Qi, Chang, Peng, Su, Pan, Huang, Lantao
Format Journal Article
LanguageEnglish
Published London, England SAGE Publications 01.01.2020
Sage Publications Ltd
Subjects
Circuits
Computer simulation
Cooling
Cooling coils
Electromagnetic fields
Electromagnetic forming
Finite element method
Industrial applications
Ohmic dissipation
Optimization
Resistance heating
Temperature
Thermal coupling
Electromagnetic forming
driving coil
temperature rise
Joule heating
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Summary:The long-life driving coil is the prerequisite for electromagnetic forming industrial application. Up to date, the temperature rise is one of the major factors that restrain its working life. For the purpose of reducing the temperature rise of the driving coil, this paper proposes a new coupled cooling method, in which an extra cooling coil is placed on one side of the driving coil, then the Joule heating is coupledly transferred by delaying the breakover control of the driving coil. To achieve this purpose, a finite element simulation model of Electrical Circuit- Electromagnetic Field-Thermal Coupling in the plates setting of the electromagnetic forming is established, after which the influence rules of coil turns, cross-sectional area and materials of cooling coil on temperature rise are analyzed. Then, this paper also establishes a coupled cooling circuit model, in which the influence of cooling coil structure parameters on the Joule heating of driving coil is analyzed. Furthermore, Simulation results show that effective Joule heating transfer can be reached by the best optimization scheme of the cooling driving coil. Specifically, the average temperature rise reduces by 13 degrees, namely 22.8% by using this new method.
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content type line 14
ISSN:1383-5416
1875-8800
DOI:10.3233/JAE-190062