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CFD thermal simulations IBL PowerPoint Presentation
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CFD thermal simulations IBL

CFD thermal simulations IBL

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CFD thermal simulations IBL

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  1. Enrico Da Riva, Anne-Laure Lamure 14th August 2012 CFD thermal simulations IBL E. Da Riva, A.L. Lamure

  2. Beam Pipe and insulation • IBL staves • Boundary conditions • CFD simulations settings A. Geometry, materials and boundary conditions E. Da Riva, A.L. Lamure

  3. 1. Beam Pipe, insulation and IPT E. Da Riva, A.L. Lamure

  4. 2. IBL staves * Assumed as isotropic **Stycast 2850FT, manufacturer declared value: 1.02 W m-1 K-1 ***Electrolub HTCP, manufacturer declared value: 2.5 W m-1 K-1 • Perfect thermal contact between different layers in the CFD simulations E. Da Riva, A.L. Lamure

  5. 3. Boundary Conditions Bake-out case -40 °C Convection with : .. 250°C E. Da Riva, A.L. Lamure

  6. 3. Boundary Conditions Nominal case -40 °C Convection with : .. Adiabatic 100W / stave E. Da Riva, A.L. Lamure

  7. 4. CFD simulations settings • Nitrogen flow rate =0kg/s • Natural convection of nitrogen taken into account • Radiative heat transfer transfer taken into account (emissivity of 0.05 for the Beam Pipe, 1 for other surfaces) • Dependence of nitrogen properties on temperature taken into account • Laminar natural convection flow E. Da Riva, A.L. Lamure

  8. Bake-out case • Nominal case • Summary table B. CFD Simulations E. Da Riva, A.L. Lamure

  9. 1. Bake-out Insulation : 0mm -36°C 76°C E. Da Riva, A.L. Lamure

  10. 1. Bake-out Insulation : 2mm -36°C 53°C E. Da Riva, A.L. Lamure

  11. 1. Bake-out Insulation : 4mm -36°C 47°C E. Da Riva, A.L. Lamure

  12. 2. Running nominal Insulation : 0mm -17°C -26°C E. Da Riva, A.L. Lamure

  13. 2. Running nominal Insulation : 2mm -17°C -26°C E. Da Riva, A.L. Lamure

  14. 2. Running nominal Insulation : 4mm -17°C -26°C E. Da Riva, A.L. Lamure

  15. 3. Summary table E. Da Riva, A.L. Lamure

  16. Bake-out case • Nominal case C. Comparisonwithpreviousresults E. Da Riva, A.L. Lamure

  17. Summary table E. Da Riva, A.L. Lamure

  18. Thankyou for your attention ! E. Da Riva, A.L. Lamure