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14th August 20121 E. Da Riva, A.L. Lamure CFD thermal simulations IBL Enrico Da Riva, Anne-Laure Lamure 14th August 2012.

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Presentation on theme: "14th August 20121 E. Da Riva, A.L. Lamure CFD thermal simulations IBL Enrico Da Riva, Anne-Laure Lamure 14th August 2012."— Presentation transcript:

1 14th August 20121 E. Da Riva, A.L. Lamure CFD thermal simulations IBL Enrico Da Riva, Anne-Laure Lamure 14th August 2012

2 2 E. Da Riva, A.L. Lamure A. Geometry, materials and boundary conditions 1.Beam Pipe and insulation 2.IBL staves 3.Boundary conditions 4.CFD simulations settings

3 14th August 20123 E. Da Riva, A.L. Lamure 1. Beam Pipe, insulation and IPT

4 14th August 20124 E. Da Riva, A.L. Lamure 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

5 -40 °C 250°C 17th July 2012E. Da Riva, A.L. Lamure5 Convection 3. Boundary Conditions with : Bake-out case

6 -40 °C Adiabatic 17th July 2012E. Da Riva, A.L. Lamure6 Convection 3. Boundary Conditions with : Nominal case 100W / stave

7 14th August 20127 E. Da Riva, A.L. Lamure 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

8 14th August 20128 E. Da Riva, A.L. Lamure B. CFD Simulations 1.Bake-out case 2.Nominal case 3.Summary table

9 14th August 20129 E. Da Riva, A.L. Lamure 1. Bake-out Insulation : 0mm

10 14th August 201210 E. Da Riva, A.L. Lamure 1. Bake-out Insulation : 2mm

11 14th August 201211 E. Da Riva, A.L. Lamure 1. Bake-out Insulation : 4mm

12 14th August 201212 E. Da Riva, A.L. Lamure 2. Running nominal Insulation : 0mm

13 14th August 201213 E. Da Riva, A.L. Lamure 2. Running nominal Insulation : 2mm

14 14th August 201214 E. Da Riva, A.L. Lamure 2. Running nominal Insulation : 4mm

15 14th August 201215 E. Da Riva, A.L. Lamure 3. Summary table GeometryCaseInsulationTemperature Tsensor maxT IPT max convect mm°C IBL OnlyBake-Out0-3676 IBL OnlyBake-Out2-3653 IBL OnlyBake-Out4-3647 IBL OnlyNominal0-17-26 IBL OnlyNominal2-17-26 IBL OnlyNominal4-17-26

16 14th August 201216 E. Da Riva, A.L. Lamure C. Comparison with previous results 1.Bake-out case 2.Nominal case

17 14th August 201217 E. Da Riva, A.L. Lamure Summary table

18 14th August 201218 E. Da Riva, A.L. Lamure Thank you for your attention !

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