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Third EUROnu Annual Meeting, RAL 2011

Third EUROnu Annual Meeting, RAL 2011. A.WRÓBLEWSKI & B.SZYBIŃSKI Cracow University of Technology. Assessment of the cooling options for a Superbeam horn. Boundary conditions. How to determine the film coefficient h ? Eng ine ering tables Simplified relations

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Third EUROnu Annual Meeting, RAL 2011

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  1. Third EUROnu Annual Meeting, RAL 2011 A.WRÓBLEWSKI & B.SZYBIŃSKI Cracow University of Technology Assessment of the cooling options for a Superbeam horn

  2. Boundary conditions

  3. How to determine the film coefficient h? • Engineering tables • Simplified relations • General convection theory (rathercomplicated approach) • In all above given cases two possibilities considered • Natural convection (slow velocity of cooling medium) • Forced convection Engineering tables in

  4. Simplified relations (J.P. Holman, Heat transfer) Horizontal cylinders; convection to air

  5. ho=1000, he=500, hr=100 , hc=100, hi=10 To=293, Te=293 , Tr=293 , Tc=293, Ti=310

  6. ho=1000, he=500, hr=100 , hc=100, hi=10000 To=293, Te=293 , Tr=293 , Tc=293, Ti=310

  7. ho=1000, he=500, hr=100 , hc=100, hi=10000 To=293, Te=293 , Tr=293 , Tc=293, Ti=310

  8. hc: 1001000 ho=1000, he=500, hr=100 , hc=1000, hi=10000 To=293, Te=293 , Tr=293 , Tc=293, Ti=310

  9. hr: 10050 ho=1000, he=500, hr=50 , hc=1000, hi=10000 To=293, Te=293 , Tr=293 , Tc=293, Ti=310

  10. Horn shell with double skin (only in inner part of cylinder)

  11. Horn shell with double skin (only in inner part of cylinder)

  12. Horn shell with double skin (only in inner part of cylinder)

  13. FEM modelling in ANSYS with fatigue calculations

  14. Fatigue analysis – VHCF S-N Curve

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