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Optimized Magnet Support

Optimized Magnet Support. EML 4551 Senior Design Dr. Luongo 12/02/99. Deliverable #3 Team #12 D avid Moore I rving Scott R oger Payano T ee Carter Mentors: George Miller and John Miller. Scope of the Project Product specifications WBS Design Selection Calculations. Final Design

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Optimized Magnet Support

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  1. Optimized Magnet Support EML 4551 Senior Design Dr. Luongo 12/02/99 Deliverable #3 Team #12 David Moore Irving Scott Roger Payano Tee Carter Mentors: George Miller and John Miller Team #12 Optimized Magnet Support EML 4551

  2. Scope of the Project Product specifications WBS Design Selection Calculations Final Design Design Drawings Problems and Actions Conclusion and Next Steps Hybrid Magnet Project Team #12 Optimized Magnet Support EML 4551

  3. Scope of the Project • optimize a cold-to-warm support structure for the super conducting-outsert of the 45-T Hybrid magnet • meet all mechanical requirements while minimizing the load on the refrigeration system • demonstrate the validity of the design (and supporting analyses) by constructing and testing a model of the support structure Team #12 Optimized Magnet Support EML 4551

  4. Product Specification Team #12 Optimized Magnet Support EML 4551

  5. Column Height (H) = 1000mm Column Nominal Diameter (Dnom) = 1100mm Maximum Fault Load (Fmax) = 6MN Temperature at the cold end (Tcold) = 1.8 K Temperature at the warm end (T warm) = 296 K Temperature of the Ghe at the inlet (Tin) = 4.5 K Needs and Specifications Team #12 Optimized Magnet Support EML 4551

  6. Needs and Specifications • Space constraints: size of magnet (see support specs.) • No Budget – minimize cost • Allow for sleeve to aid the support while not adding to the weight • Calculate optimum height to introduce helium • Achieve maximum % heat transfer Team #12 Optimized Magnet Support EML 4551

  7. Team #12 Optimized Magnet Support EML 4551 WBS

  8. WBS Team #12 Optimized Magnet Support EML 4551

  9. WBS Team #12 Optimized Magnet Support EML 4551

  10. Project Management • Initial Procedures: • Define and calculate the temperature profile along the length of the structure, calculate the thickness variations and varying temperature profile, define max loads and along the length of the support structure • Communications List Team #12 Optimized Magnet Support EML 4551

  11. Project Management • Positions: • David Moore: Project Engineer • Irving Scott: Calculations Design Engineer • Roger Payano: Project Management Engineer • Tee Carter: Project Presentation and Report Coordinator Team #12 Optimized Magnet Support EML 4551

  12. Project Schedule Team #12 Optimized Magnet Support EML 4551

  13. Design Selection • Generation of Ideas • Rough Scetches • Concept Screening Matrix • Concept Revisions • Concept Scoring Matrix • Finalized Concept Team #12 Optimized Magnet Support EML 4551

  14. Concepts Generated • Sketches on Overhead • Ideas and Summary • Flat Plate: • An outer shell without any marks on the inside surface • Fits over existing support like a shell with a small space between the support column and the outer wall for cooling fluid to flow through • Fluid flows from top to bottom • Cross-Hatch: • An outer shell with a diamond shaped pattern cut into the inner surface of the shell • Designed to increase the fluid’s flow time by increasing the distance from top to bottom • Fluid flows top to bottom Team #12 Optimized Magnet Support EML 4551

  15. Concepts Generated (cont.) • Rings: • Similar to the insides of resistive magnet • Ring juts out from support column, is used as a cooling fin by drawing heat out from column • Fluid flows from top to bottom, and through holes in fin surface • Dimples: • Similar to the Riveted method. • A flat plate with bumps pressed into the surface • Bumps are pressed into contact with the support column • Bumps are used to increase the travel distance of the fluid • Fluid flows from top to bottom • Riveted: • A flat plate with rivets punched through the plate to the inner side • Rivets are pressed into contact with the support column • Rivets are used to increase the travel distance of the fluid by making the path non-linear • Fluid flows top to bottom Team #12 Optimized Magnet Support EML 4551

  16. Concept Screening Matrix Team #12 Optimized Magnet Support EML 4551

  17. Revised Concept • Bored • An outer cylinder with holes bored through it longitudinally • Cylinder is pressed closely to the support column • Fluid flows from top to bottom through the bored holes • From Ringed Team #12 Optimized Magnet Support EML 4551

  18. Concept Scoring Matrix Team #12 Optimized Magnet Support EML 4551

  19. Concept Selected • Dimpled • selected primarily because of its addition in strength to the support column in both buckling resistance and in support strength. • cheaper part, already in abundance within the Magnet Lab facility. • it increases the efficiency of the system by increasing the travel distance of the fluid. Team #12 Optimized Magnet Support EML 4551

  20. Summary of Design • We performed calculations to determine necessary support area • We maximized the system cooling efficiency • heat load to the cryostat • cooling efficiency for column • optimize intake manifold location Team #12 Optimized Magnet Support EML 4551

  21. Calculations Team #12 Optimized Magnet Support EML 4551

  22. Final Design • Coolant Entry Point: 100 mm from lower edge of cryostat (He enters at 4.5 K) • Thermal Profile of the column is linear • Heat leak to cryostat from entry point: optimized/balanced • Column area is tapered/bell shaped Team #12 Optimized Magnet Support EML 4551

  23. Team #12 Optimized Magnet Support EML 4551 Design Drawings

  24. Problems and Action • Calculations turned out to be wrong for the purposes of this experiment and the specific profiles • The problem is in locating the optimal input location of the fluid into the shell so that it minimizes heat transfer into the cryostat • Again consult Dr. Shih, taking to him a more specific problem and not trying to manipulate formulas to fit our needs • A meeting will be set up with Dr. Luongo to assure the validity of our results Team #12 Optimized Magnet Support EML 4551

  25. Problems and Action • Assumptions were difficult to make • Coolant/Helium entry point was difficult to find • Creation of a Thermal Profile (eqn. ) • Dr. Luongo helped us to make assumptions and checked calculations • Calculations were more in depth than Mentor needed Team #12 Optimized Magnet Support EML 4551

  26. Group Problems • Implementation of previously learned concepts • Vague knowledge of area of study of our project • Project sometimes got lost • Communication, Communication, Communication!!!! Team #12 Optimized Magnet Support EML 4551

  27. Actions • Set of Pre-assigned meetings for next semester • Pre-assigned weekly work schedule in the lab • Make up days • Implement everything we learned this semester and previous semesters • Prioritize Team #12 Optimized Magnet Support EML 4551

  28. Team #12 Optimized Magnet Support EML 4551 Conclusion and Next Steps

  29. Conclusion • Group analysis of column is incomplete/complex • Mentors analysis is complete/simplified • Mentors analysis will be called the final theoretical design • Actual physical design will create a simple model of the theoretical Team #12 Optimized Magnet Support EML 4551

  30. Next Steps • Further analyze mentors data compared to our data • Turn design from complex, theoretical to simple, testable • Design thermal and stress experiment • Contact John & George Miller about manufacturing • Compare test data to theoretical data Team #12 Optimized Magnet Support EML 4551

  31. Scope of the Project Product specifications WBS Design Selection Calculations Final Design Design Drawings Problems and Actions Conclusion and Next Steps Hybrid Magnet Project Team #12 Optimized Magnet Support EML 4551

  32. Team #12 Optimized Magnet Support EML 4551 Questions? Contact D.I.R.T.: dmoore@eng.fsu.edu

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