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Disruption Analysis of PP, VV, and Components Model includes bracket conducting path on back of PPs Disruption cases: Mid plane fast disruption (1 ms)

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Presentation on theme: "Disruption Analysis of PP, VV, and Components Model includes bracket conducting path on back of PPs Disruption cases: Mid plane fast disruption (1 ms)"— Presentation transcript:

1 Disruption Analysis of PP, VV, and Components Model includes bracket conducting path on back of PPs Disruption cases: Mid plane fast disruption (1 ms) VDE (P1 to P5 plasma center translation) and quench fast quench at P5 (1 ms) slow quench at P5 (40 ms - slow VDE in Titus’ case) worst case?

2 Conductivity (S/m)Skin depth Passive Plate5.07x10 7 (85% Cu)2.25 mm Bracket1.389x10 6 (SS)13.7 mm VV1.389x10 6 (SS)13.7 mm CS Casing0.7576x10 6 (SS)13.7 mm Electrical conductivity and skin depth (1ms disruption) Skin Depth at Fast Disruption The skin depth of copper passive plates is only ~2-2.5 mm during 1 ms plasma disruption Br (T)Bz (T) Without plasma With plasma t= End of disruption Background fields at center of lower PPPs (1.2, 0.72, -0.8) m Fast mid-plane centered disruption 2 MA/ms Back ground field OH, TF and PF coils (#79)

3 Eddy Current - Mid-plane Fast Disruption color – eddy current density arrow – eddy current flow

4 Eddy Current – P1-P5 VDE and Fast Disruption color – eddy current density arrow – eddy current flow

5 Eddy current at end of disruption Eddy Current in Front Face of PPs – Mid-plane Fast Disruption skin depth

6 Eddy current at end of disruption Eddy Current in Front Face of PPs – P1-P5 VDE then Fast Disruption skin depth No loop is observed

7 Eddy current at end of disruption Eddy Current in Back Face of PPs – Mid-plane Fast Disruption

8 Eddy current at end of disruption Eddy Current in Back Face of PPs – P1-P5 VDE then Fast Disruption

9 Eddy Current in Brackets – Mid-plane Fast Disruption

10 Total Toroidal Current Induced during Fast Disruption Lower PPP centerBr (T)Bz (T) coil background field (#79) with plasma at = with plasma at 1ms X (m)Y (m)Z (m) Background fields at center of lower PPPs (1.2, 0.72, -0.8) m Center of lower PPPs

11 Disruption Loads on PPPs – Mid-plane Fast Disruption X (m)Y (m)Z (m) Moment center of lower PPPs

12 Disruption Loads on PPPs – P1-P5 VDE then Fast Disruption X (m)Y (m)Z (m) Moment center of lower PPPs

13 Disruption Loads on PPPs – P1-P5 Slow VDE (40 ms Disruption) X (m)Y (m)Z (m) Moment center of lower PPPs

14 Mid Disruption Analysis of Upper PPs

15 Mid Disruption Analysis of Lower PPs

16 Mid Disruption Analysis of Upper PPs

17 Disruption Analysis of Upper PPs


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