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Thermal stability analysis of a superconducting magnet considering heat flow between magnet surface and liquid helium
- Source :
- Physica C: Superconductivity and its Applications. 550:99-106
- Publication Year :
- 2018
- Publisher :
- Elsevier BV, 2018.
-
Abstract
- This paper represents a numerical calculation method that enables highly-accurate simulations on temperature analysis of superconducting magnets considering the heat flow between the magnet and liquid helium during a quench. A three-dimensional (3D) superconducting magnet space was divided into many cells and the finite-difference method (FDM) was adopted to calculate the superconducting magnet temperatures governed by the heat transfer and joule heating of the each cell during a quench. To enhance the accuracy of the temperature calculations during a quench, the heat flow between the superconducting magnet surface and liquid helium, which lowers the magnet temperatures, was considered in this work. The electrical equation coupled with the governing thermal equation was also applied to calculate the change of the decay of the magnet current related to the joule heating. The proposed FDM method for temperatures calculation of a superconducting magnet during a quench process achieved results that were in good agreement with those obtained from an experiment.
- Subjects :
- 010302 applied physics
Work (thermodynamics)
Materials science
Liquid helium
Energy Engineering and Power Technology
Mechanics
Superconducting magnet
Condensed Matter Physics
01 natural sciences
Electronic, Optical and Magnetic Materials
law.invention
law
Magnet
0103 physical sciences
Heat transfer
Thermal stability
Electrical and Electronic Engineering
Current (fluid)
010306 general physics
Joule heating
Subjects
Details
- ISSN :
- 09214534
- Volume :
- 550
- Database :
- OpenAIRE
- Journal :
- Physica C: Superconductivity and its Applications
- Accession number :
- edsair.doi...........617011f6f11709dfdee4689dd636f33c