1. FDR 10/01 Jason Tarrant CLRC1 SCT EC Thermal Enclosure (TE) l Thermal Enclosure Function: »Make End-cap thermally neutral »Condensation free exterior »Containment of N 2 purge gas (for moisture free interior) »Prevent ingress CO 2 & H 2 O l How Functions Met »Design based on calculations of thermal performance w.r.t. environmental requirements (D Cragg)

2. FDR 10/01 Jason Tarrant CLRC2 SCT EC Thermal Enclosure (TE) l Main Components Rear Thermal Enclosure Assembly Dry Gas (N2) Purge Outer Thermal Enclosure Assembly Services Thermal Feed Through Inner Thermal Enclosure Assembly Front Thermal Enclosure Assembly

3. FDR 10/01 Jason Tarrant CLRC3 SCT EC Thermal Enclosure (TE) l Front Thermal Enclosure Assembly Membrane In-Fill Panel Front Wing Heater Assembly Multi-Function Foil

4. FDR 10/01 Jason Tarrant CLRC4 SCT EC Thermal Enclosure (TE) l Rear Thermal Enclosure Multi-Function Foil Heater Assembly Insulating Pad Rear Wing Foil Spreader Cooling Circuit

5. FDR 10/01 Jason Tarrant CLRC5 SCT EC Thermal Enclosure (TE) l Outer Thermal Enclosure Bracket Cooling Circuit Patching Foil Front Bracket Services Thermal Feed Through (Plain Half) Heater Assembly Multi-Function Foil Spreader & Insulating Structure Front TE Connecting Foils

6. FDR 10/01 Jason Tarrant CLRC6 SCT EC Thermal Enclosure (TE) l Outer Thermal Enclosure Continued... Manifold (low z) Return Circuit Feed Circuit Manifold (high z) Inlet & Exhaust Pipes

7. FDR 10/01 Jason Tarrant CLRC7 SCT EC Thermal Enclosure (TE) l Inner Thermal Enclosure Flange (low z) Aluminised Kapton Facing Multi-Function Foil Insulating Structure CRFP Cylinder Heater Assembly Inside SCT Environment Outside SCT Environment

8. FDR 10/01 Jason Tarrant CLRC8 SCT EC Thermal Enclosure (TE) l Services Thermal Feed Through

9. FDR 10/01 Jason Tarrant CLRC9 SCT EC Thermal Enclosure (TE) l N2 Dry Gas Purge Routing Exhausts Inlets Exhaust Channels (in wing core) Distribution Channels Wing Faceskin Removed to Show Channels

10. FDR 10/01 Jason Tarrant CLRC10 SCT EC Thermal Enclosure (TE) l Prototypes Barrel Prototype Glasgow EC Prototype

11. FDR 10/01 Jason Tarrant CLRC11 SCT EC Thermal Enclosure (TE) l Conclusions –Active Insulation requirements met as defined by thermal engineer (D Cragg) l Insulation 8 mm / 46 mW/m.K. l 5 mm non active & Feed Through l Kapton foil heaters, active insulation and condensation prevention, higher power than required. l Aluminium alloy cooling circuit C 6 F 14 coolant fluid with 150um foil spreader –Setting liquid sealant, seals complex shapes but separable. –Services Thermal Feed Through to warm services before entry to TRT environment.

12. FDR 10/01 Jason Tarrant CLRC12 SCT EC Thermal Enclosure (TE) l Conclusions Continued… –N2 purge, distributed between Wheels, even spreading helped by convection currents. –Electrical shield, a 50 or 100 m foil outermost surface, taped joints, foil also; l prevents moisture ingress l spreader for heaters l mechanically restrain heaters –Prototypes being tested to prove calculated properties

13. FDR 10/01 Jason Tarrant CLRC13 SCT EC Thermal Enclosure (TE) l Sealing & Electrical Connection

14. FDR 10/01 Jason Tarrant CLRC14 SCT EC Thermal Enclosure (TE) l Sealing & Electrical Connection Continued...

15. FDR 10/01 Jason Tarrant CLRC15 SCT EC Thermal Enclosure (TE) l Sealing & Electrical Connection Continued...

16. FDR 10/01 Jason Tarrant CLRC16 SCT EC Thermal Enclosure (TE) l Sealing & Electrical Connection Continued...

17. FDR 10/01 Jason Tarrant CLRC17 SCT EC Thermal Enclosure (TE) l Properties & Requirements (D Cragg) Above based on insulation with = 46mW/m.K. Other surfaces 5mm insulation recommendation, non-active (limit heating of the detector environment during maintenance) & Services Thermal Feed Through.