BARREL and DISC MVD Collaboration Meeting Bochum 10.09.2013 ZEA 1: - PowerPoint PPT Presentation

Mitglied der Helmholtz-Gemeinschaft Micro Vertex Detector of P ANDA BARREL and DISC MVD Collaboration Meeting Bochum 10.09.2013 ZEA 1: V. Fracassi, D. Grunwald, E. Rosenthal, R. Schmitz IKP: A. Cebulla

Content • MVD CAD Design State , Barrel and Disc • Barrel Design State status • Removable mounting of the Staves of the CFRP Support Cylinder • Disc Support Design State • Technical Developments • Test stave • Quality Control • Hydraulic investigation • Cooling Piping, • Bending device, Fittings • Thermal Investigation • FEM Investigation • FEM Calculation Cylinder • Thermal • Summary / Outlook ZEA 1 V. Fracassi, D. Grunwald, E. 2 Rosenthal, R. Schmitz, IKP A. Cebulla Bochum 10.9.2013

Design Barrel and Disc Design State: Sept. 2003 Draft_Sv3.5 ~266 ~175 ~315 ~450 Main Dimensions unchanged Changes: • Stave cutouts • Chip adaptation • Flexible Tube diameter enlarged from 4 mm to 6 mm • Developing of fixing means ZEA 1 V. Fracassi, D. Grunwald, E. 3 Rosenthal, R. Schmitz , IKP A. Cebulla Bochum 10.9.2013

3D Structure Rapid Prototyping 1/8 Model Scale 1:1 (Cylinder , Flange, Barrel Staves Layer 3+4) ZEA 1 V. Fracassi, D. Grunwald, E. 4 Rosenthal, R. Schmitz , IKP A. Cebulla Bochum 10.9.2013

Current Drawing MVD-Disc Actually the Structure design concept will be revised in collaboration with the Institute of Plastic Processing from the RWTH Aachen Rapid Prototyping 1/2 Model ZEA 1 V. Fracassi, D. Grunwald, E. 5 Rosenthal, R. Schmitz , IKP A. Cebulla Bochum 10.9.2013

Barrel Strips removable mounting Example solution • saddle • ball and barrel • bold More solution were carried out in collaboration with the Institute of Plastic Processing from the RWTH Aachen The solution are yet not been rated ZEA 1 V. Fracassi, D. Grunwald, 6 E. Rosenthal, R. Schmitz Bochum 10.9.2013

Barrel Strip: Support for Detector Moduls Beam Strip N4 • CFRP (2* ~0,2 mm pre-preg 90 ° /0 ° mm • Foam (Rohacell unpressed =2 mm) • POCO HTC ~ 2,8 x ~ 10 mm (scheduled) • Tube Do=2 mm Di=1.8 Material: MP35m (1.4571) ZEA 1 V. Fracassi, D. Grunwald, E. 7 Rosenthal, R. Schmitz , IKP A. Cebulla Bochum 10.09.2013

Test Barrel Stave Design • • • • • ZEA 1 V. Fracassi, D. Grunwald, E. 8 Rosenthal, R. Schmitz , IKP A. Cebulla Bochum 10.9.2013

Barrel Stave thin-walled tube (D=2/1,8 mm) glue POCO-HTC 122 10 150 ZEA 1 V. Fracassi, D. Grunwald, E. 9 Rosenthal, R. Schmitz , IKP A. Cebulla Bochum 10.9.2013

Quality control CFRP Test stave two CFRP Test stave two prepreg with integrated prepreg with POCO HTC wood and Rohacel foam Tube Glue and Rohacel foam Studies on the determination of the quality control (delamination) for the production of CFRP ( carbon-fiber-reinforced polymer ) staves using X-rays were performed successfully. Further studies are planned with a Test stave (for example with Pulse Thermography) ZEA 1 V. Fracassi, D. Grunwald, E. 10 Rosenthal, R. Schmitz , IKP A. Cebulla Bochum 10.9.2013

Base Cooling concept from INFN • Coolant Water (18 ° C) • Vacuum-operated mode using hydrostatic pressure • Active cooling pipe D ext 2,0 mm d int 1,8 mm (1.4571) • Upstream routing D ext 4 mm d int 2 mm • Pressure drop must be evaluated • Cooling capacity has yet to be determined • (last information about Barrel chips from University Giessen 1W/cm²) • the same value is assumed for the disc Technical Developments Thermal hydraulic investigation • • optimize components complete with Pressure drop and mass flow rate piping evaluation (with jet pump) • • Materials Heat Active cooling pipe (Different cooling • Heat Transfer (Calculation / Tests) tubes) • • Cooling part (Pressure Drop, Flow Steel-Pipe (D= 2/1.8mm Reference from Rate. Calculation / Tests) INFN MP35M) • • Cabling (More information about Cable Steel-Pipe (D= 1.6/1.2 mm) • type, isolation, shielding, number) Upstream Routing • • Pressure drop must be evaluated Flexible plastic pipe (D= 4/2 mm) (Reference INFN: SMC Polyurethan) • Fittings (Reference INFN: Ryton R 4-220) ZEA 1 V. Fracassi, D. Grunwald, E. 11 Rosenthal, R. Schmitz , IKP A. Cebulla Bochum 10.9.2013

Hydraulic-Test Hydraulic test rig • Cooling part (Pressure Drop, Flow Rate. Calculation / Tests). Hydraulic studies on the strip cooling system of the barrels were carried out. Results are currently being evaluated. ZEA 1 V. Fracassi, D. Grunwald, E. 12 Rosenthal, R. Schmitz , IKP A. Cebulla Bochum 10.9.2013

Cooling Piping: Schematic Drawing outlet Barrel Strip Cooling inlet Strip Disk Cooling Space problem especially at the Cooling Connections outlet inlet Bending Devise Glass beads 100-200 µm ZEA 1 V. Fracassi, D. Grunwald, E. 13 Rosenthal, R. Schmitz , IKP A. Cebulla Bochum 10.9.2013

Hydraulic-Test Delta T= 3K Flow rate vacuum allowed Pipe Pipe and flexible Max. ptube Pressure drop ZEA 1 V. Fracassi, D. Grunwald, E. 14 Rosenthal, R. Schmitz , IKP A. Cebulla Bochum 10.9.2013

Test Stave Dummy chip resistor Test Stave • Size 7.15 x4 mm • Maximum power 600 mW (nominal 256 W) Top below Resistence (Chip 1W/cm²) Glue Thinflex Glue Preepack Rohacell Carbon Foam POCO HTC Tube Do/di 2/1,8 mm Water ~ 25 ° C ZEA 1 V. Fracassi, D. Grunwald, E. 15 Rosenthal, R. Schmitz , IKP A. Cebulla Bochum 10.9.2013

Thermal Test Facility PANDA MVD Stave Measurement • Accurate difference temperature (inlet vs. outlet flow) • Difference pressure • Absolute pressure • Volume flow • Power supply voltage and current • Water-cooling from 5 ° C up to 80 ° C • Defined room temperature 10- 30 ° C Thermography FLIR SC6000 • Spectral Range: 8 – 9.2 μ m • Resolution: 640 × 512 Pixel • Frame Rate: 1Hz -125Hz Upgrade (Okt. 2013) closed, underpressure water cooling circle ZEA 1 V. Fracassi, D. Grunwald, E. 16 Bochum Rosenthal, R. Schmitz , IKP A. Cebulla 10.9.2013

Structure analysis Heated test stave (water temperature 35 ° C, ambient temperature 23 ° C) ZEA 1 V. Fracassi, D. Grunwald, E. 17 Bochum Rosenthal, R. Schmitz , IKP A. Cebulla 10.9.2013

Static evaluation of the cooling ZEA 1 V. Fracassi, D. Grunwald, E. 18 Bochum Rosenthal, R. Schmitz , IKP A. Cebulla 10.9.2013

Dynamic evaluation of the cooling process 1. without cooling 2. beginning of cooling 3. with cooling ZEA 1 V. Fracassi, D. Grunwald, E. 19 Bochum Rosenthal, R. Schmitz , IKP A. Cebulla 10.9.2013

Different measuring options Analysing the influence of heat conductance (pcb, thermal glue, etc.) Analysing the influence of different volume flows 10. ZEA 1 V. Fracassi, D. Grunwald, E. September 20 Rosenthal, R. Schmitz , IKP A. Cebulla 2013

Thermal Investigation ZEA 1 V. Fracassi, D. Grunwald, E. 21 Bochum Rosenthal, R. Schmitz , IKP A. Cebulla 10.9.2013

FEM Investigation Temperature Distribution – Test Stave Boundary Conditions Temperature Distribution • Cooling capacity 1W/cm² (information about Barrel chips from University of Giessen) ZEA 1 V. Fracassi, D. Grunwald, E. Bochum Rosenthal, R. Schmitz , IKP A. Cebulla 10.9.2013

Temperature Distribution - Test Stave Temperature Distribution FEM Calculation Temperature Distribution Experimental Temperature: Tube 35 ° C Convection 23 ° C ZEA 1 V. Fracassi, D. Grunwald, E. Bochum Rosenthal, R. Schmitz , IKP A. Cebulla 10.9.2013

Barrel Stave Final compilation and geometry depends from the Test results 56,7 S=?? 3,9 ??? 7,07 ??? 170 ° ? • Geometry ? Resistance (Chip 1W/cm²) • Flatness ? Glue Thin flex • Thickness ? Glue Prepack • Surface Texture ? Rohacell • Carbon Foam POCO HTC Quality control ? Tube Do/di 2/1,8 mm Water ~ 25 ° C ZEA 1 V. Fracassi, D. Grunwald, E. 24 Rosenthal, R. Schmitz , IKP A. Cebulla Bochum 10.9.2013

Selection of CFRP Half Shell with the aid of FEM CFRP (preimpregnated) outer shell Foam (Rohacell) CFRP (preimpregnated) inner shell 3 Different fiber orientation Type 1 Type 2 Type 3 • 0/90 ° 0/90 ° +-45 ° Pre-preg outer shell • +- 45 ° 0/90 ° +-45 ° Pre-preg inner shell • Stress, Thermal expansion ZEA 1 V. Fracassi, D. Grunwald, E. 25 Rosenthal, R. Schmitz , IKP A. Cebulla Bochum 10.9.2013

Fibre Orientation – Cylindrical Support Boundary Conditions Total Deformation - qualitative analysis Vector Principal Stress - qualitative analysis

Summary/Outlook • MVD CAD Design optimization , Barrel and Disk going on • Detector Support (Stave) • Update on barrel strip module design (Electronics arrangements and cut outs: Report from Tommaso). We update that in our MVD basic design (no relevance for the Space management)Further development: barrel mounting (Clips) in collaboration with the Institute of Plastic Processing from the RWTH Aachen • Flange Development • Flange drawing for the 3D model with original material is ready to start production • Test strip • Was designed and made • Disk Development (Service lines, additional Lines for electronics and cooling systems, support) • Disc Support Design was started (Development of the mechanical structure) (Artur Cebulla) ZEA 1 V. Fracassi, D. Grunwald, E. Rosenthal, R. 27 Schmitz , IKP A. Cebulla Bochum 10.9.2013