1. Technical Review EHN1 Extension Cooling Systems and Pipework Jérôme Rodary / EN-CV

2. Content 10 May 2016 Technical Review 2 1.Project frame (EHN1 facilities) 2.Demineralized water 3.Chilled water 4.Fire fighting system 5.Compressed air 6.Raw water (= Mixed water)

3. EHN1 facilities 3 Location: CERN Prevessin site Building size: ~ 300 m × 50 m Building equipped with cooling, ventilation, powering and handling systems to cover experiments needs Building will be extended to house 2 new large-size detector prototypes  Future neutrino experiments Hall extension length: ~ 72 m 10 May 2016 Technical Review

4. EHN1 facilities 4 Old pipework configuration 10 May 2016 Technical Review Current pipework configuration GHN106 technical gallery - North wall/Saleve side

5. Demineralized water 5 DW requirements Cooling of the 20 additional electromagnets (H2 and H4 beam lines) 10 May 2016 Technical Review Required flow rate ~ 60 m3/h Required cooling power ~ 2.2 MW

6. Demineralized water 6 Future layout Extension of the existing DW pipework New pipes for H4 beam line only ! 10 May 2016 Technical Review New DW pipes GHN19 gallery

7. Demineralized water 7 P&ID DW distribution network 10 May 2016 Technical Review

8. Demineralized water 8 Pumping & cooling capacities Pumping station located at BA81 4 pumps 225 m3/h @21 barg (direct drive) + 1 pump ‘stand-by’ 10 May 2016 Technical Review Flowrate and power balance: Cooling flowrate of existing magnets will be strongly reduced (M2, P42, H6, K12,…) Cooling flowrate recovered (at least) ~ 99 m3/h Versus new cooling flowrate ~ 60 m3/h Cooling power recovered ~ 3.6 MW Versus new cooling power ~ 2.2 MW  DW pumping station is enough sized for ensuring the future needs

9. Chilled water 9 CW requirements Supplying of the 8 fan coils for barracks air-conditioning 10 May 2016 Technical Review Required flow rate ~ 9 m3/h Required cooling power ~ 50 kW

10. Chilled water 10 Future layout Extension of the existing CW pipework 4 barracks on Jura side and 4 barracks on Saleve side 10 May 2016 Technical Review

11. Chilled water 11 P&ID CW distribution network 10 May 2016 Technical Review Note: 2-ways control valves are included in HVAC contract !

12. Chilled water 1210 May 2016 Technical Review Pumping & cooling capacities Pumps PED 0541 (&PED 0542 ‘stand-by’) / Breguet-KSB ETAC 125/50/2 230 m3/h @ 53 mwc / Frequency driver  PED 0541 pump is enough sized to supply the new 8 fan coils Flowrate and power synthesis (considering PED 0541 running @85%): Available flowrate is ~ 34 m3/h Available cooling power is ~ 198 kW  limited by the pump capacity (Chillers cooling power margin is about 500 kW) 2 + 1 chillers (1.2 MW power each one)

13. Firefighting system 13 HSE and project requirements Requirements defined in technical note EDMS 1584050 rev 0.1 APSAD R5 design rules 55 mm ‘Storz connections’ requested by fire brigade 10 May 2016 Technical Review RIA cabinets location proposal

14. Firefighting system 14 Future layout Extension of the existing FF pipework DN 33 RIA - 128 l/min @4 barg 10 May 2016 Technical Review

15. Firefighting system 15 P&ID Firefighting system 10 May 2016 Technical Review

16. Firefighting system 16 Design justification See technical note EDMS 1584050 rev 0.1 2 operating cases studied 10 May 2016 Technical Review Simulation n°1: 3 RIAs supplied simultaneously:  Flow rates can be ensured

17. Compressed air 17 CA requirements TE-CRG needs 20 Nm3/h @8bar (maximum flowrate) Delivery points set at regular intervals (every ~ 10 m) Compression station capacity (Bld. 860): 2 compressors GA90 (780 m3/h) + 1 compressor (850 m3/h) = 2410 m3/h @[8-9] barg Actual consumption : ~ 850 m3/h Enough sized for EHN1 extension consumption need ! 10 May 2016 Technical Review

18. Compressed air 18 Air velocity inside main pipe 10 May 2016 Technical Review

19. Compressed air 19 P&ID CA distribution network 10 May 2016 Technical Review

20. Raw water 20 RW requirements UR are still pending ! Number, location and racks type… to be confirmed 4 solutions studied (email sent on 13 April by JR to Users) 10 May 2016 Technical Review Solution Cooling power [kW] Maximum number of racks (18 kW/rack) Budget impactSchedule impact 1724 (max 5)NO 235018 (max 20)Minor Some works during EYETS 372040Major Most of the works during EYETS 472040Major Some works during EYETS

21. Raw water 21 RW production and distribution KSB Pump PED0501 (PED0502): 90 m3/h @ 56 mwc GEA heat exchanger (CW 7-12°C / RW 17-22°C) RW flow margin ~ 60 m3/h (350 kW) Solutions studied See draft P&IDs annexed 10 May 2016 Technical Review

22. Thanks for your attention!