1. LS1 Day EN-CV M. Nonis on behalf of CV group / CERN - 12.06.2012

2. Contents Introduction Projects for LS1 – PS and Meyrin site – LHC and Experiments – SPS – North Area Overview on maintenance Operation 2 M. Nonis - LS1 Day - 12.06.2012

3. Preamble The object of this presentation is to show what will be done by CV Group during LS1 with respect to the requests received and consolidation needs; the focus is made mainly in the projects that cannot be performed during LS1. In addition, some activities (projects, maintenance) that have a major impact in the availability of circuits will be mentioned in order to allow everyone to have the full picture of the constraints to face in LS1. The presentation is divided in geographical zones, almost corresponding to the different machines complex. In this talk we take into account requests created in Plan.cern until Wednesday 5 th June; later ones are not included and not accepted at today. 3 M. Nonis - LS1 Day - 12.06.2012 I n t r o d u c t i o n

4. Terms and Definitions When is LS1 for CV? In order to be able to allow the cool down of LHC and the powering tests, the LS1 for CV Group is from January to December 2013. We are requested that in 2014, all plants linked to the run of any accelerator shall be operational, only maintenance work will be allowed in view to minimize the time without maintenance until December 2015. 4 M. Nonis - LS1 Day - 12.06.2012 I n t r o d u c t i o n

5. General overview of CV Activities PS + MeyrinSPS + NALHC + ExpTotal Consolidation4 / 1 / 210 / 0 / 630 / - / 255 Upgrade existing plants5 / 3 / 12 / 1 / 116 / - / 029 New requests/plants13 / 6 / 33 / 3 / 48 / - / 444 Not clear requests24 Total152 Operation interventions33 / 11 / -12 / - / -10 / - / -64 CV maintenance (hrs*) 15000 / 1200024000 / 1800064000 / 54000103000 / 84000 Activities confirmed for 2013 (CV LS1) 91 60% Activities that will start in 201414 10% Activities postponed after 201423 15% Pending requests24 15% 49% of request not declared before end May * Base 2012: 71’000 hours 5 I n t r o d u c t i o n

6. Other figures New major supply & installation contracts: 26 Massive use of existing contracts: > 50 orders – Number of additional contractors’ staff depends on final dates of maintenance interventions but it can’t be considered unlimited (supervision work for CERN, need to know circuits before working on them). 6

7. General Organization CV External help from INFN for engineering activities? – Ok on some projects – not on any – Time is (almost) late, decision is more than urgent. During LS1 all possible resources will be moved from operation activity to work supervision. However, the maintenance workload will increase. Operation requests: most of the dates are not defined so that we cannot confirm whether they can be satisfied according to installation availability, or if they cumulate at the same period and represent a too high workload. It will not be possible to cumulate the workload for projects and maintenance (and operation) in the same period, therefore maintenance work must be distributed all along the 12 months of 2013. This implies that maintenance will not be limited to the very first few months of 2013. 7 M. Nonis - LS1 Day - 12.06.2012 I n t r o d u c t i o n

8. Demin. Water make up from bldg 378 Simplified Scheme CV Cooling Circuit 8 M. Nonis - LS1 Day - 12.06.2012 I n t r o d u c t i o n

9. Test & Commissioning Given the quantity of CV systems concerned and the important modifications to be performed, the test & commissioning of each CV plant will be a major activity requiring several days per plant. In addition, each equipment Group will need to test & commission his equipment before considering his work completed. During each of these steps the effort required to CV team is not negligible (drain, fill up, balancing of circuits…) and, only after their successful completion, CERN can enter the commissioning phase of each accelerator. I am convinced that all this should not be under evaluated. 9 M. Nonis - LS1 Day - 12.06.2012 I n t r o d u c t i o n

10. Done in LS1 Not done in LS1 nTOF ELENA ISOLDE PSB L4 FAIR Meyrin - PS 10 M. Nonis - LS1 Day - 12.06.2012 Projects in LS1

11. LINAC 4 HVAC plant is completed July 2012 Cooling plant is completed September 2012 The decision of delaying the commissioning phase of L4 of 1 year does not have an effect on the CV installation work; however it will avoid clashes between operational needs for L4 and CV maintenance/project work during 2013. 11 M. Nonis - LS1 Day - 12.06.2012 Projects in LS1

12. ISOLDE COOLINGHVAC building 197 Cooling – Dec 12 to May 13: 1 circuit for existing + extension, 27-37°C 1 circuit for BTY magnets (RP safety), 27-37°C 1 circuit for RF cavities, 20-30°C (primary: chilled water) Ventilation – Sept 12 to Febr 13: Bldg 170, 199, 198 Faraday cage Cryo cold box Air conditioning Labo class C bldg 115 Refurbishment existing station (open loop): no cooling possible until June 2013 12 Projects in LS1

13. Other ISOLDE activities CV work (design and installation) linked to the following requests: New ventilation for the extension of storage for target area ISOLDE robot installation Hot cell installation Integration of Rabit in the ventilation system to be moved during 2014 or later if not compatible with beam program. 13 M. Nonis - LS1 Day - 12.06.2012 Projects in LS1

14. Other Projects ELENA: ventilation new building nTOF EAR2: ventilation new building DESIGN ACTIVITIES WILL START BEGINNING 2014 AND WORK PERFORMED ACCORDING TO THEIR COMPLEXITY AND THE TIME SLOTS MADE AVAILABLE BY 2014 RUNS. 14 M. Nonis - LS1 Day - 12.06.2012 Projects in LS1

15. Meyrin + PS - Requested Projects 2013Start in 2014Start Later L4OK PSB new circuitsOK (dump)X (HVAC - bldg)X (water - bldg) PSB new connections (MSC)pending PS new connections (TS15 – ABT, longitudinal damper – RF) pending New bldg 107OK ISOLDEOK (HIE)X nTOFX ELENAX Laboratories, halls: EPC (269, 171, 363, 287…) EL (Diesel, 192) FAIR New HUB – IT Dept. CLIC (185) X XXXXXXXX 15 M. Nonis - LS1 Day - 12.06.2012 Projects in LS1

16. PS Ventilation: Planning Dismantling: 4 weeks GS/SE room repairs: 2 weeks Ventilation work: 3 months Overall duration per local: 5 months Parallel work on 4 technical rooms (ideally) Installation fresh air 353: Jan-Feb 2013 Reduced ventilation during all work duration Dismantling Commissioning Installation 16 Projects in LS1

17. Chilled Water: Concerned Areas Priority 2 Priority 1 Already done! First phase, completion in LS2 Work duration: around 6 months Stop of chilled water plant: LINAC3 cooling Ventilation of PS complex bldgs. 17 Projects in LS1

18. Consolidation of the demineralized water production station for all CERN; power and control cubicles for cooling circuits ISR, nTOF, chilled water concerned. Duration: – 6 months with 3 months of full stop (May till mid August) – 4 weeks stop of cooling circuits. Consolidation Bldg 378 NO circuit make up or refill in any CERN complex possible: WHAT IS FULL, STAYS FULL, WHAT IS EMPTY (because of drain, leaks…) CANNOT BE FILLED  strong impact in operating and in start up of any circuit between May to August + the delay to refill all the circuits throughout CERN. 18 Projects in LS1

19. LHC Done in LS1 Not done in LS1 SMS18 SL53 offices UPS bldg Pt 2 New offices New bldg + data center SR1, SR5 cooling circuits ECAL circuit 19 M. Nonis - LS1 Day - 12.06.2012 Storage bldg Projects in LS1 SR1 clean room

20. LHC + Exp - Requested Projects 2013Start in 2014Start Later R2EX Collimators (incl. walls Pt 7)X Chilled water upgrade Pt 2XX Back up cooling towers (cryo)X New cooling circuits SR1 SR5 - EPCX Cooling circuits racks BE-BI in SRsX Modification control SVC for EPCX SR1 clean room modificationX Pt 18: ventilation storage bldg + SMS18X Modification controls ATLASX Modification CMS ECAL cooling circuitX Ventilation ALICE L3X ALICE cooling jacketX HR% control in USA15X Detector cooling work (ALICE, ATLAS, CMS)X Consolidation air conditioning control room LHCbX New office bldgs for ALICE; CMS, LHCb(GS) Mixed water circuit USA15, SR1, SDX1X (*) (*) : workload needed might be a blocking point 20 M. Nonis - LS1 Day - 12.06.2012 Projects in LS1

21. Detector Cooling Work 21 M. Nonis - LS1 Day - 12.06.2012 Projects in LS1

22. One Typical CV Installation Powering and ELQA tests prior to Warm-up (4+4 d) qualify circuits except mains to 7TeV fault localization.. CSCM (1 sector) Warm-up: incl. vacuum leak tests at 80K (1wk) to localize leaks Extended Maintenance (stop) Powering tests From an original idea by K Foraz Work, test, commissioning (stop) Maintenance (lighter) Preparation for cool-down 22 Projects in LS1

23. Equipment and cabling PLCs and code PCVue, PVSS Projects on Controls PCVue - Upgrade PCVue: USC55 water, DC plants, UAPT, SFs, BAs, cooling PS. Wizcon - Migration Wizcon: Cooling CNGS, cooling USA15, ventilation ATLAS, CMS, CNGS, cooling PS EST-SUD. Replacement of Wizcon by UNICOS, SCADA, PLC - LHC cooling: SFs, UWs - LHC HVAC surface bldg. Pt 1, 18, 4, 5, 6, 8. - 378 cooling towers - SPS 863 towers Schedule - Preparation of test on platform before LS1. - Deployment/downtime 1 to 2 week/project. - Planned: end of each plant maintenance Supervision Process control Field 23 M. Nonis - LS1 Day - 12.06.2012 Projects in LS1

24. Cooling Towers Availability Point 1 Point 8 Point 6 Point 4 Back up cooling towers for cryo: downtime 2 weeks/Point Maintenance work: duration 2 months/Point Controls modifications:duration 1 week/Point Back up workMaintenance Point 1October 2013June to August 2013 Point 2n.a.August to mid October 2013 Point 4August 2013October to mid December 2013 (including new primary pumps) Point 5n.a.December 2013 to January 2013 Point 6March 2013April to June 2013 Point 8June 2013February to April 2013 24 M. Nonis - LS1 Day - 12.06.2012 Projects in LS1

25. Pumps Replacement in UWs Further increase of flow rate in the sectors shall require change of all piping. Planning Work duration: 2 months per UW During work no cooling for UPS in REs UW25 and UW85: not refilled until mid August (bldg 378 project). UW65 no spare days in planning for filling circuit before bldg 378 project 25 M. Nonis - LS1 Day - 12.06.2012 Projects in LS1

26. SPS Done in LS1 Not done in LS1 26 M. Nonis - LS1 Day - 12.06.2012 Projects in LS1 Bypass BA2 New RF bldg New cell cooling towers

27. Consolidation Valves BAs BuldingsValve supply Valves return Valves hydrants Disconnectors BA1xx BA2xxxx BA3xxn.a. BA4xxxx BA5xxxx BA6xxxx BA7 & Point 1.8xxxx 27 M. Nonis - LS1 Day - 12.06.2012 Projects in LS1

28. SPS Cooling Towers Carbonatation of concrete + waterproofing of basins  GS/SE: – Civil engineering works: 3 months complete stop from March 2013 Complementary work for CV: – Equipment dismantling (fans, gearboxes, motors, packing etc.) and remounting. – Start 21 January 2013 cells 1 and 2 (cells 3 and 4 to remain in service). Cooling tower can remain in service until end February/beginning March 2013 and will return to service end May 2013 – On completion of civil engineering works 3 weeks to return to service with 2 cells operational Storage: – outside, fencing required to prevent packing being displaced by strong winds – packing volume 550 m 3 - 1242 pieces at 30cm x 120cm x 32cm – Miscellaneous equipment 80 m 2 28 M. Nonis - LS1 Day - 12.06.2012 Projects in LS1

29. Availability of SPS Loop Carbonatation of cooling towers Replacement of valves and fire fighting disconnectors SPS loop has to be emptied (difficult task): 4 months at least starting from March-April 2013 No fire hydrants in SPS complex (BAs) Point 18 cooling towers stopped (budget requested to solve problem in 2012) Waste water discharge from each BA and cooling towers North Area? Air conditioning BA1 and BA5 affected 29 M. Nonis - LS1 Day - 12.06.2012 Projects in LS1

30. Prevessin, North Area Done in LS1 Not done in LS1 30 M. Nonis - LS1 Day - 12.06.2012 Projects in LS1 NA62 TDC2 – TCC2 HVAC Consolidation chilled water

31. CCC HVAC Upgrade BE91 construction - completion in May 2013; Demolition of bldg. 936 and construction of new bldg. 774; Primary water modifications for BA3 and future BAF3; GS replacing area drains; Space will be highly constrained - workspace, material storage, unloading, crane maneuvering, car parks, waste sorting and collection. HVAC shutdown for final connection and testing (CCC will remain operational). 2 – 27 September 2013 Commissioning (perturbations)30 September – 18 October 31 M. Nonis - LS1 Day - 12.06.2012 Projects in LS1

32. NA62 Ventilation surface premises: completed 2012 T10 Cooling station: completed 2012 Ventilation underground TCC8 and ECN3: work between December 2014 – March 2015 (pending derogation from RP for 2014 run). Surface racks cooling: design start beginning 2014 - 3 months delay Cooling Gigatracker: design start beginning 2014 - 3 months delay 32 M. Nonis - LS1 Day - 12.06.2012 Projects in LS1

33. SPS + NA - Requested Projects 2013Start in 2014Start Later Consolidation HVAC CCCX BE91 - ELX SPS Upgrade – BA3 work - RFXX Refurbishment cooling towers(GS) Consolidation drain TT20X NA62: HVAC ECN3 Cooling racks gigatracker XXXXXX Consolidation HVAC TCC2 / TDC2X North Area consolidationX BA2 bypass - EPCpending Cooling renovation LSS1 dump - EPCpending Compressed air sectorization SPS_IVM, sectors X10 and X60, 136, 142 - VSC pending 33 M. Nonis - LS1 Day - 12.06.2012 Projects in LS1

34. ONE COMMON ACTIVITY: MAINTENANCE one complete intervention in 2013 one lighter intervention in 2014 …..and its impact M. Nonis - LS1 Day - 12.06.2012 34

35. 20132 months 20143 weeks (cryo excepted) 20131 month 20142 weeks 20131 month 20142 weeks 20131 week 20141 day CV Installations’ Availability – Any Complex M. Nonis - LS1 Day - 12.06.2012 35 Maintenance

36. Maintenance Planning for LHC Experiments ATLAS: June to September 2013 ALICE: June to September 2013 CMS: November 2012 to January 2013 LHCb: January to April 2013 M. Nonis - LS1 Day - 12.06.2012 36 Maintenance

37. Functional Tests CV needs to perform functional tests in order to ensure the functionality of the installations during operation: – Safety tests or back up; – Valves manipulation (e.g: in concrete floor); – Degraded mode scenario (ventilation systems); During maintenance and tests, the availability of CV services shall be affected and/or stopped. Estimated 1-2 days per Point 37 M. Nonis - LS1 Day - 12.06.2012 Maintenance

38. REQUESTS FOR OPERATION OF CV SYSTEMS IN 2013 M. Nonis - LS1 Day - 12.06.2012 38

39. CV Services Available during LS1 CV will ensure only essential services: – Ventilation of underground and surface premises (tunnel, experimental areas, buildings…) but not the ones dedicated to specific equipment. – Chilled water only for ventilation purposes – Compressed air – Raising systems – Drinking water supplies – Fire hydrants network Temporary stop of these installations might take place according to modification work or maintenance interventions to be performed. Operation 39 M. Nonis - LS1 Day - 12.06.2012

40. Operation 2013 Requests received have not enough details: “need water for 130 weeks from December 2012”. Received requests (full list): PS LINAC 2, 3 and 4 CTF3 Cloud ISR area AD RF (mainly SPS) CAST CMS, LHCb These requests can be satisfied provided that they do not clash with the planning for projects and maintenance. Requests 2014 are ok: maintenance interventions will be adapted accordingly. 40 M. Nonis - LS1 Day - 12.06.2012 Operation

41. Conclusions M. Nonis - LS1 Day - 12.06.2012 41 Still lot of details have to be defined. Present situation is tight but CV is confident we can succeed. What we do not know is whether the picture we have is complete or someone has still to show up and formulate additional requests. This is the most sensible and urgent point: CV has to evaluate, launch or complete the studies now, there is no possibility to change direction in a few weeks.

42. Thank you for your attention Questions? 42 M. Nonis - LS1 Day - 12.06.2012