LS1 DayEN-CV

M. Nonis on behalf of CV group / CERN - 12.06.2012

Contents• Introduction• Projects for LS1

– PS and Meyrin site– LHC and Experiments– SPS– North Area

• Overview on maintenance• Operation

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PreambleThe 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 5th June; later ones are not included and not accepted at today.

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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.

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General overview of CV ActivitiesPS + Meyrin SPS + NA LHC + Exp Total

Consolidation 4 / 1 / 2 10 / 0 / 6 30 / - / 2 55

Upgrade existing plants 5 / 3 / 1 2 / 1 / 1 16 / - / 0 29

New requests/plants 13 / 6 / 3 3 / 3 / 4 8 / - / 4 44

Not clear requests 24 24

Total 152

Operation interventions 33 / 11 / - 12 / - / - 10 / - / - 64

CV maintenance (hrs*) 15000 / 12000 24000 / 18000 64000 / 54000 103000 / 84000

Activities confirmed for 2013 (CV LS1) 91 60% Activities that will start in 2014 14 10%Activities postponed after 2014 23 15%Pending requests 24 15%49% of request not declared before end May

* Base 2012: 71’000 hours

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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).

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.

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Demin. Water make up from bldg 378

Simplified Scheme CV Cooling Circuit

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Test & CommissioningGiven 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.

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Done in LS1Not done in LS1

nTOF

ELENA

ISOLDE

PSB

L4

FAIR

Meyrin - PS

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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.

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ISOLDECOOLINGHVAC

building 197

Cooling – Dec 12 to May 13:1 circuit for existing + extension, 27-37°C1 circuit for BTY magnets (RP safety), 27-37°C1 circuit for RF cavities, 20-30°C (primary: chilled water)

• Ventilation – Sept 12 to Febr 13:Bldg 170, 199, 198Faraday cageCryo cold boxAir conditioning Labo class C bldg 115

Refurbishment existing station (open loop): no

cooling possible until June 2013

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Other ISOLDE activitiesCV 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.

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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.

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Meyrin + PS - Requested Projects2013 Start in 2014 Start Later

L4 OK

PSB new circuits OK (dump) X (HVAC - bldg) X (water - bldg)

PSB new connections (MSC) pending

PS new connections (TS15 – ABT, longitudinal damper – RF)

pending

New bldg 107 OK

ISOLDE OK (HIE) X

nTOF X

ELENA X

Laboratories, halls:• EPC (269, 171, 363, 287…)• EL (Diesel, 192)• FAIR• New HUB – IT Dept.• CLIC (185)

XXXXX

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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 CommissioningInstallation16

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Chilled Water: Concerned Areas

Priority 2Priority 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.

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• 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.

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LHC

Done in LS1Not done in LS1

SMS18

SL53 offices

UPS bldg Pt 2

New offices

New bldg + data center

SR1, SR5 cooling circuits

ECAL circuit

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Storage bldg

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SR1 clean room

LHC + Exp - Requested Projects2013 Start in 2014 Start Later

R2E X

Collimators (incl. walls Pt 7) X

Chilled water upgrade Pt 2 X X

Back up cooling towers (cryo) X

New cooling circuits SR1 SR5 - EPC X

Cooling circuits racks BE-BI in SRs X

Modification control SVC for EPC X

SR1 clean room modification X

Pt 18: ventilation storage bldg + SMS18 X

Modification controls ATLAS X

Modification CMS ECAL cooling circuit X

Ventilation ALICE L3 X

ALICE cooling jacket X

HR% control in USA15 X

Detector cooling work (ALICE, ATLAS, CMS) X

Consolidation air conditioning control room LHCb X

New office bldgs for ALICE; CMS, LHCb (GS)

Mixed water circuit USA15, SR1, SDX1 X (*)

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Circuit concerned Works Consequences

ATLAS Muons, TRT, cables, LAr, Tile

September 2013 No cooling on concerned circuit

ALICE TRD, TPC March 2013 No cooling on concerned circuit

CMS Electrical system,Brine, SS, Compressed air

First 2: March 2013Third: September 2013

No cooling on concerned circuit

Detector Cooling Work

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One Typical CV InstallationPowering 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

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Work, test, commissioning (stop)

Maintenance (lighter)

Preparation for cool-down

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Equipmentand cabling

PLCsand 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

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Cooling Towers Availability

Point 1

Point 8

Point 6

Point 4

Back up cooling towers for cryo: downtime 2 weeks/PointMaintenance work: duration 2 months/PointControls modifications: duration 1 week/Point

Back up work Maintenance

Point 1 October 2013 June to August 2013

Point 2 n.a. August to mid October 2013

Point 4 August 2013 October to mid December 2013 (including new primary pumps)

Point 5 n.a. December 2013 to January 2013

Point 6 March 2013 April to June 2013

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Pumps Replacement in UWsFurther increase of flow ratein the sectors shall requirechange 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

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SPS

Done in LS1Not done in LS1

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Bypass BA2New RF bldg

New cell cooling towers

Consolidation Valves BAsBuldings Valve supply Valves

returnValves

hydrantsDisconnectors

BA1 x x

BA2 x x x x

BA3 x x n.a. n.a.

BA4 x x x x

BA5 x x x x

BA6 x x x x

BA7 & Point 1.8 x x x x

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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 m3 - 1242 pieces at 30cm x 120cm x 32cm– Miscellaneous equipment 80 m2

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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

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Prevessin, North Area

Done in LS1Not done in LS1

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NA62

TDC2 – TCC2 HVAC

Consolidation chilled water

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

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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

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SPS + NA - Requested Projects2013 Start in 2014 Start Later

Consolidation HVAC CCC X

BE91 - EL X

SPS Upgrade – BA3 work - RF X X

Refurbishment cooling towers (GS)

Consolidation drain TT20 X

NA62:• HVAC ECN3• Cooling racks• gigatracker

XXX

Consolidation HVAC TCC2 / TDC2 X

North Area consolidation X

BA2 bypass - EPC pending

Cooling renovation LSS1 dump - EPC pending

Compressed air sectorization SPS_IVM, sectors X10 and X60, 136, 142 - VSC

pending

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ONE COMMON ACTIVITY: MAINTENANCE

one complete intervention in 2013one lighter intervention in 2014

…..and its impact

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2013 2 months

2014 3 weeks (cryo excepted)

2013 1 month

2014 2 weeks

2013 1 month

2014 2 weeks

2013 1 week

2014 1 day

CV Installations’ Availability – Any Complex

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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

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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

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REQUESTS FOR OPERATION OF CV SYSTEMSIN 2013

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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.

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Operation 2013Requests 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, LHCbThese 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.

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Conclusions

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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.

Thank you for your attention

Questions? 42M. Nonis - LS1 Day - 12.06.2012