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Disruption Analysis of PP, VV, and Components

Disruption Analysis of PP, VV, and Components. 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?.

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Disruption Analysis of PP, VV, and Components

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  1. Disruption Analysis of PP, VV, and Components • 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? Model includes bracket conducting path on back of PPs

  2. Skin Depth at Fast Disruption Electrical conductivity and skin depth (1ms disruption) Background fields at center of lower PPPs (1.2, 0.72, -0.8) m The skin depth of copper passive plates is only ~2-2.5 mm during 1 ms plasma disruption Fast mid-plane centered disruption 2 MA/ms Back ground field OH, TF and PF coils (#79)

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

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

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

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

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

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

  9. Eddy Current in Brackets – Mid-plane Fast Disruption

  10. Total Toroidal Current Induced during Fast Disruption 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 Moment center of lower PPPs

  12. Disruption Loads on PPPs – P1-P5 VDE then Fast Disruption Moment center of lower PPPs

  13. Disruption Loads on PPPs – P1-P5 Slow VDE (40 ms Disruption) 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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