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NED and post-NED WUT involvement

NED and post-NED WUT involvement. Maciej Chorowski. NED S.C. meeting 30.10.2007. The NED cryostat, construction phase at WUT. Recuperative heat exchanger. Copper thermal shields. Schemat kriostatu wykonanego w I-20 dla NED (Next European Dipole) w ramach VI PR.

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NED and post-NED WUT involvement

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  1. NED and post-NED WUT involvement Maciej Chorowski NED S.C. meeting 30.10.2007

  2. The NED cryostat, construction phase at WUT Recuperative heat exchanger Copper thermal shields

  3. Schemat kriostatu wykonanego w I-20 dla NED (Next European Dipole) w ramach VI PR

  4. Optimization of thermal insulation of the NED cryostat

  5. Thermal shields location optimization

  6. Simplified geometry of the magnet FEM model and boundary conditions of the collar fin for the heat transfer simulations Input data: 1. Geometry of fin 2. Material properties of stainless steel and polyimide (density, specific heat and thermal conductivity) 3. Evolution of the coil temperature 4. Boundary conditions from two-volume model 5. Heat transfer coefficients

  7. Example of numerical calculation Animation of evolution of temperature in the fin a). Pictorial view of simplified geometry of numerical calculations with the selected points of the collar b) Evolution of the temperature in the fin

  8. Stability tests of QRL bellows, commissioning of the LHC

  9. Reception tests of cryogenic systems Reception test of the LHC Cryogenic Distribution Line in sector 7-8 (sub-sectors A and B) Reception test of the LHC Cryogenic Distribution Line in sector 8-1 - WUT-CERN collaboration - performed in 2005-2006 - aims: ● to verify overal behaviour of the line at cryogenic temperatures; ● to measure heat inleaks to the circuts 4.5-20K and 50-80K

  10. Reception tests of cryogenic systems Measured heat inleaks to circuit 50-80 K Measured heat inleaks to circuit 4.5-20 K Temperature evolutions of the Cryogenic Distribution Line main headers during the reception test in sector 8-1

  11. Reception tests of cryogenic systems Some members of WUT cryogenic grup in the LHC tunnel The LHC Cryogenic Distribution Line during the reception tests in sector 8-1

  12. Development of Ag alloys for BSCCO tape sheaths

  13. Mechanical properties of designed alloys Ambient temperature – state after annealing at 830°C/10h

  14. Mechanical properties of designed alloys 77K – state after annealing at 830°C/10h s

  15. Analysis of oxygen diffusion and internal oxidation in BSCCO tape sheath

  16. Thermal conductivity of sheath material – state after oxidation at 830°C/30h

  17. Sheath manufacturing 75 mm

  18. BSCCO tapes manufacturing (IFW Dresden) 20 mm BSCCO/Ag/Ag BSCCO/Ag/Ag-Mg BSCCO/Ag/Ag-Sn BSCCO/Ag/Ag-Cu-Zr BSCCO/Ag/Ag-Cu-Ni

  19. WUT proposed involvement in WP WP1 mat. 20 keuro, personnel 12 keuroWP2 mat. 150 keuro, personnel 380 keuroWP3 mat. 20 keuro, personnel 48 keuroWP4 mat. 20 keuro, personnel 48 keuroWP5 mat 20 keuro, personnel 24 keuro

  20. WUT proposed involvement • 850 keuro • 230 keuro mat • 620 keuro personnel

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