1. CLEX TBM T0 Cooling system Design strategy 1 V. Soldatov, A. Vamvakas, BE-RF 02.04.2014

2. Schematic layout for the CLEX two-beam module cooling Circuit 1: Super-accelerating structure + (2x) AS_Load Circuit 2: PETS unit + WG + PETS_Load + RFN_Load + (2x)Idle_PETS_Load Circuit 3: (2x) DBQ Phase 3.1 (see slide 9 for the RF layout) 1 Top: CDR layout (Fig. 5.144) Right: Detailed layout of Phase 3.1 2 2 3

3. Main Parameters DBQ CLIC/CLEX (Danfysik) Nom. Power 556 W Δ T 5 °C Power Dissipation 171 W Nom. Water flow 1.8 l/min Principal components Super accelerating structurePETS (Ciemat)Drive Beam Quadrupole by Michele Modena 3 Cooling Parameters of SAS CLIC CDRCLEX Power Dissipation 820 W5-30 W Δ T10 ˚C Cooling Parameters of PETS CLIC CDRCLEX Power Dissipation 220 W1.3-8 W Δ T10 ˚C

4. Air Heat Exchange Calculations T amb = 20 °C T comp = 25 °C Η = 11 W/m 2 /K SASPETS A (m2)0.720.44 Qair (W)4024 CLEX power (W)5-30 W1.3-8 W Power generated is a fraction of what the component will dissipate to air. Therefore the water cooling system does not need to provide any additional heat dissipation and the ΔT water =10 °C is hardly achievable.

5. Circuit 3 Circuit 1/2 Assembly Flowchart (link) The cooling network will consist of copper pipes (OD 8, 10 and 16mm) and standard connectors (Swagelok) Cooling Network of the Module 5  Example shows the cooling network for the CLEX T0 module with 2 SAS and 2 PETS

6. Option 1: Independent Cooling System 6 Shelter with electronics Cooling equipment CLEX water cables ~12 m~2.5 m Cooling RackWater chiller Supply Return cables CTF2 3 lines in each direction Control terminal

7. Cooling Rack in CTF2 7 1 2 3 1 2 3 Return pipe Supply pipe Isometric view Spare FT CV SV FTPR SV HV CV SV – Safety Valve HV – Hand Valve CV – Control valve FT – Flow Transmitter PR – Pressure Regulator

8. Option 2: Using of CTF3 Cooling System 8 Top view Front view COLD WATER 30˚C TERMOSTAT Return (x10) Supply (x10) Distribution manifold is connected with the equipment by means of flexible standard Kevlar pipes CLEX TBM T0 Module Drive beam Girder Main beam Girder CLEX TBM MB Girder CLEX TBM DB Girder CTF3 Water Supply

9. Comparison table 9 Solution 1 is more sophisticated but requires complex equipment and installation. Solution 2 has less capabilities, but is significantly simpler. As temperature control is not possible through the water cooling system, solution 2 is preferable.

10. Planning and Activities 10 Completion of the specification List of equipment Control requirements Procurement of market components Detailed design Cooling Rack Module Cooling Network Routing Control components Installation works in CTF2 and CTF3 Approval Electronics and Software Control terminal Monitoring and control software

11. EXTRA SLIDES 11

12. CLEX TBM T0. Phase 3.1 layout 12