The ITER toroidal field model coil project

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220 A. Ulbricht et al. / Fusion Engineering and Design 73 (2005) 189–327 Fig. 4.18. TCS measurement at the maximum current (TFMC 80 kA, LCT 16 kA) in both <strong>coil</strong>s with ramping down the heaters after 250 �V resistive voltage was reached in P1.2. Fig. 4.19. Changing from standby operation to current operation.
A. Ulbricht et al. / Fusion Engineering and Design 73 (2005) 189–327 221 Fig. 4.20. Overview of the complete test Phase 2 including the LCT <strong>coil</strong>. and circular perforated copper plates made of Electrolytic Tough Pitch copper (ETP-Cu), which are brazed to the central conductor as cooling fins. In order to compensate the differential shrinking of the central copper conductor and the outer stainless steel container, several axial bellows are added along the length of the lead. So, two different outer diame- ters of the cooling disks have to be used in the heat exchanger. • Use of Nb3Sn inserts in the contact area and the low temperature region of the heat exchanger for adjusting the resistive length of the current lead and operating the lead at optimum mass flow rate over a wide current range [57]. Fig. 4.21. Illustrative drawing of the helium cooled heat exchanger including the cold end clamp contact to the superconducting bus bar and the screw connection to the flexible copper bus bars.
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Page 3 and 4: The application and continuation of
Page 5 and 6: 3.2. Conductor manufacture 3.2.1. S
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Page 9 and 10: Table 3.5 TFMC double pancake data
Page 11 and 12: 3.3.7. Module ground insulation and
Page 13 and 14: impregnation of the coil in the cas
Page 17 and 18: trial consortium AGAN and the Europ
Page 23 and 24: ˙Q ICS [W] ˙Q case [W] ˙Q bus ba
Page 29 and 30: 4.3.2.4. Standby operation over nig
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Page 35 and 36: 2 weeks (JAERI method); for joint 1
Page 37 and 38: Table 4.5 Main operation parameters
Page 45 and 46: Fig. 4.35. Computed TFMC windings c
Page 49 and 50: the quench detection system. The lo
Page 55 and 56: ply current regulation. This situat
Page 57 and 58: Fig. 5.6. (a) V-Tin characteristics
Page 61 and 62: known, which is partly true (see Se
Page 63 and 64: Fig. 5.18. Summary of performance a
Page 65 and 66: filaments in the TFMC (and similar)
Page 67 and 68: Symbols Explanation C00 Coefficient
Page 71 and 72: the outer joint outlet. This heat e
Page 73 and 74: Fig. 6.9. Loss energy of the TFMC w
Page 75 and 76: Fig. 6.13. Evolution of the couplin
Page 77 and 78: and during Phase 2 (within 6%). The
Page 79 and 80: other hand, if using the central ch
Page 81 and 82: Fig. 6.20. Top: quench propagation
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Fig. 6.23. Measured (multi star) an
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fB Friction factor of the bundle re
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surement with voltage taps located
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Table 7.3 TFMC pancake (joint) resi
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Table 7.8 Values of TFMC and FSJS j
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Fig. 7.7. The insulated bus bar typ
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Rneg, 1[nΩ] = 1.77 [n�] + 3.75
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law actually is good (better than
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Fig. 7.16. Current in the petals re
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ence may exceed the inaccuracy of t
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A. Ulbricht et al. / Fusion Enginee
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provided support to the coil and th
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(c) The best fit in relation to the
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8.5. Comparison to ITER TF coil str
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Fig. 9.7. Partial discharge activit
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circular cross-section and central
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two different sets of Hall probe ar
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equation: dx = Ax + Bu dt y = Cx +
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[34] E. Salpietro, R. Maix, G. Bevi
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[86] R. Heller, D. Ciazynski, J.L.
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ple for ITER, IEEE Trans. Appl. Sup
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PSB: Power System Blockset is a MAT
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