Structural design of the toroidal configuration of the HTS SMES cooling system

The superconducting magnetic energy storage (SMES) system is working on around 30K, because the magnet is made of high temperature superconductor. To maintain the cryogenic temperature, the superconducting coil is cooled by cryogen, helium gas or liquid neon. But there are some weak points in the cr...

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Bibliographic Details
Published in:Physica. C, Superconductivity Superconductivity, 2011-11, Vol.471 (21-22), p.1390-1394
Main Authors: Yeom, H.K., Koh, D.Y., Ko, J.S., Kim, H.B., Hong, Y.J., Kim, S.H., Seong, K.C.
Format: Article
Language:English
Subjects:
Charge
Conduction cooling
Cooling
Cooling systems
Cryogenic conduction cooling
Cryogenic temperature
Magnetic fields
Pancake coils
Superconducting devices
Superconductivity
Thermal analysis
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Summary:The superconducting magnetic energy storage (SMES) system is working on around 30K, because the magnet is made of high temperature superconductor. To maintain the cryogenic temperature, the superconducting coil is cooled by cryogen, helium gas or liquid neon. But there are some weak points in the cryogen cooling system. For example periodic charge of the cryogen and size is big and so on. So, we have designed the conduction cooling system for toroidal configuration HTS SMES. The toroidal type HTS SMES has some merits, so it is very small magnetic field leakage, and magnetic field applied perpendicular to the tape surface can be reduced. Our system has 28 numbers of HTS double pancake coils and they are arrayed toroidal configuration. The toroidal inner radius is 162mm, and outer radius is 599mm, and height is about 162mm. In this study, we have designed the cooling structure and analyzed temperature distribution of cooling path, thermal stress and deformation of the cooling structure.
ISSN:0921-4534
1873-2143
DOI:10.1016/j.physc.2011.05.201