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SCT EC Thermal Enclosure (TE)

SCT EC Thermal Enclosure (TE). 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 How Functions Met

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SCT EC Thermal Enclosure (TE)

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  1. SCT EC Thermal Enclosure (TE) • Thermal Enclosure Function: • Make End-cap thermally neutral • Condensation free exterior • Containment of N2 purge gas (for moisture free interior) • Prevent ingress CO2 & H2O • How Functions Met • Design based on calculations of thermal performance w.r.t. environmental requirements (D Cragg) CLRC

  2. SCT EC Thermal Enclosure (TE) Dry Gas (N2) Purge Outer Thermal Enclosure Assembly • Main Components Front Thermal Enclosure Assembly Rear Thermal Enclosure Assembly Services Thermal Feed Through Inner Thermal Enclosure Assembly CLRC

  3. SCT EC Thermal Enclosure (TE) Membrane In-Fill Panel • Front Thermal Enclosure Assembly Front Wing Heater Assembly Multi-Function Foil CLRC

  4. SCT EC Thermal Enclosure (TE) Heater Assembly Insulating Pad Cooling Circuit • Rear Thermal Enclosure Multi-Function Foil Rear Wing Foil Spreader CLRC

  5. SCT EC Thermal Enclosure (TE) Services Thermal Feed Through (Plain Half) Heater Assembly Multi-Function Foil • Outer Thermal Enclosure Cooling Circuit Spreader & Insulating Structure Bracket Front TE Connecting Foils Front Bracket Patching Foil CLRC

  6. SCT EC Thermal Enclosure (TE) Feed Circuit Manifold (low z) • Outer Thermal Enclosure Continued... Inlet & Exhaust Pipes Return Circuit Manifold (high z) CLRC

  7. SCT EC Thermal Enclosure (TE) • Inner Thermal Enclosure Insulating Structure Heater Assembly Inside SCT Environment CRFP Cylinder Flange (low z) Outside SCT Environment Aluminised Kapton Facing Multi-Function Foil CLRC

  8. SCT EC Thermal Enclosure (TE) • Services Thermal Feed Through CLRC

  9. SCT EC Thermal Enclosure (TE) Exhaust Channels (in wing core) Inlets • N2 Dry Gas Purge Routing Exhausts Distribution Channels Wing Faceskin Removed to Show Channels CLRC

  10. SCT EC Thermal Enclosure (TE) • Prototypes Glasgow EC Prototype Barrel Prototype CLRC

  11. SCT EC Thermal Enclosure (TE) • Conclusions • Active Insulation requirements met as defined by thermal engineer (D Cragg) • Insulation 8 mm / 46 mW/m.K. • 5 mm non active & Feed Through • Kapton foil heaters, active insulation and condensation prevention, higher power than required. • Aluminium alloy cooling circuit C6F14 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. CLRC

  12. SCT EC Thermal Enclosure (TE) • 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; • prevents moisture ingress • spreader for heaters • mechanically restrain heaters • Prototypes being tested to prove calculated properties CLRC

  13. SCT EC Thermal Enclosure (TE) • Sealing & Electrical Connection CLRC

  14. SCT EC Thermal Enclosure (TE) • Sealing & Electrical Connection Continued... CLRC

  15. SCT EC Thermal Enclosure (TE) • Sealing & Electrical Connection Continued... CLRC

  16. SCT EC Thermal Enclosure (TE) • Sealing & Electrical Connection Continued... CLRC

  17. SCT EC Thermal Enclosure (TE) • 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. CLRC

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