Detailed evaluation of insulation stresses in the KSTAR central solenoid

Sa, J.W.; Choi, Changho; Oh, Y.K.; Her, N.I.; Cho, S.; Kwon, M.; Lee, G.S.; Kim, J.H.

doi:10.1109/tasc.2002.1018479

Cited by 4 publications

(3 citation statements)

References 3 publications

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“…The most critical condition of the CS structure occurs at room temperature, since the allowable stress at room temperature is much lower than 5 K. The detail analysis shows that the peak stress of the CS structure is below the allowable limits for all load conditions including reference scenario and MRF condition. The stress evaluation of the insulation in CS coils has been performed also [8].…”

Section: Results Of Analysismentioning

confidence: 99%

“…However, the peak separation force of 12 MN occurs between PF1 and PF2 coils under several operation conditions. The condition is called as maximum repulsive force (MRF) condition [7], [8]. The designed axial compression of 15 MN at 5 K will be applied partly by assembling the preload structure at room temperature with preload of about 13.4 MN and partly by the thermal contraction difference between CS coils and preload structure during cool down [9].…”

Section: Cs Structurementioning

confidence: 99%

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Engineering design status of the KSTAR central solenoid structure

Choi

et al. 2002

IEEE Trans. Appl. Supercond.

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The central solenoid (CS) magnet system of the Korea Superconducting Tokamak Advanced Research (KSTAR) device consists of four pairs of segmented CS coils and a CS coil structure. The maximum repulsive force between CS coils is about 12 MN. The functions of the CS structure are to apply preload on the CS coils and to support the repulsive force between CS coils during operation. The designed axial compression of 15 MN at 4.5 K will be applied partly by assembling the preload structure at room temperature with preload of about 13.4 MN and partly by the thermal contraction difference between the CS coils and the structure during cool down. Additional preload will be given by minute adjustment of wedges. The structural analysis of the CS magnet system has been performed to verify the CS structure design reliability.

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Section: Results Of Analysismentioning

confidence: 99%

Section: Cs Structurementioning

confidence: 99%

Engineering design status of the KSTAR central solenoid structure

Choi

et al. 2002

IEEE Trans. Appl. Supercond.

Self Cite

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“…However, the peak separation force of 12 MN occurs between PF1 and PF2 coils under several operation conditions, and it is called as maximum repulsive force (MRF) condition (Choi, C.H. et al, 2002;Sa, J.W. et al, 2002).…”

Section: Tf Magnet Structure and Assemblymentioning

confidence: 99%

Superconductor Application to the Magnetic Fusion Devices for the Steady-State Plasma Confinement Achievement

Oh¹,

Kim²,

Park³

et al. 2012

Superconductors - Properties, Technology, and Applications

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Superconductor Application to the Magnetic Fusion Devices for the Steady-State Plasma Confinement Achievement 363 KSTAR device has lots of technical similarities with the ITER device such as using the same material of superconducting conductor, Nb 3 Sn CICC, and targeting the steady-state high performance plasma confinement over 300s. KSTAR adopted the most outstanding research results from the present devices and will exploit high performance steady-state operation which will provide the core technology for ITER and for future reactors. The designed parameters of KSTAR, as shown in Table 1, are major radius 1.8m, minor radius 0.5 m, toroidal field 3.5 T, and plasma current 2 MA for 300 s. The specific features in the KSTAR design are full superconducting magnets, passive stabilizers and segmented 3-dimentional in-vessel coils for the fast plasma stabilizations, various kinds of heating and current drive systems for the high-beta and non-inductive current drive, and strong plasma shaping for double-null or single-null configurations.

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