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Superconducting Solenoid Punch

Superconducting Solenoid Punch. Team Supercool Andy Lin Chris Kinney Naomi Kohen David Schoen. Superconducting Actuator. Zero resistance at low T Electrical actuator: Electrical E  Mechanical E American Superconductor Goal: HTS solenoid punch. Why superconducting?.

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Superconducting Solenoid Punch

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  1. Superconducting Solenoid Punch Team Supercool Andy Lin Chris Kinney Naomi Kohen David Schoen

  2. Superconducting Actuator • Zero resistance at low T • Electrical actuator:Electrical E Mechanical E • American Superconductor • Goal: HTS solenoid punch

  3. Why superconducting? Low resistance  Higher efficiency Higher current density  Larger field Fewer turns  Simple design and manufacturing

  4. Superconductor Physics • Impenetrable by external magnetic fields (up to a point) • Type I & II Superconductors • Cooper Pairs

  5. BSSCO 2223: Our Tape • Provided by American Superconductor • 4 mm (w) x 0.21mm (t) • Critical Current rating 85 – 108 A • Critical Temp (Tc) 110K • Currently 2 pieces; 4 and 50 m long

  6. BSSCO 2223: IC vs. H

  7. The Punch • Use solenoid for magnetic field • An iron core accelerates in the field • A strong field will produce a significant force.

  8. Coil Dimensions • Inner Coil between 50 mm and 100 mm in diameter • Coil height approximately 75mm • Between 320 and 160 turns with 50 meters of wire

  9. Critical Current Setup

  10. Critical Current Measurements

  11. Coil Radius Setup

  12. Coil Radius Measurements

  13. The Apparatus

  14. The Apparatus

  15. Materials Choice • PVC • Inexpensive • Machinable • Diamagnetic • Al • Inexpensive • Easily Machinable • Paramagnetic • Durable

  16. Estimates Force (N) Displacement (m)

  17. Estimates Force (N) Displacement (m)

  18. Comparisons

  19. Future Considerations • Running colder than 77K • Making a taller or shorter coil • Punch striking surface • Punch shape • Retraction Mechanism • Pulse (with capacitor)?

  20. Tests • Obtain comparable copper solenoid • Magnetic field • Force • Energy density per mass

  21. Schedule

  22. Questions?

  23. Calculating Force • For Loop • Force: • Magnetization of Iron: 334225 A/m

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