5th November 2010

R2E Mitigation Project

Review of UJ56 relocation options

A. L. Perrot, EN/MEF & R2E Study Group

Main contributions from EN/CV, EN/EL, EN/MEF, GS/ASE, GS/SEM & equipments owners

Option A: full relocation in the by-pass (A. L. Perrot)

Option B: partial relocation in the by-pass & the UJ561 (UJ561 being the CMS exit path) (A. L. Perrot)

Option C: partial relocation in the by-pass & the UJ561 finding another CMS exit path (M. Gastal)

Mitigation options studied

UJ56 1rst floorEquipment to be moved : power converters + 17 racks

Power converters

UJ56 ground floor - ‘safe room’Equipment to be moved : 5 racks + internal part of SYAFD01 (fire detection) rack

EYP01 (anti-panic lightning), EYC01/02/03 (electric network control), EYU01 (AUG)

Option A: full relocation in the by-pass

N.B. request of the equipments owners: 6 racks in the USC55/machine area and 1 rack in the USC55/CMS area

- Technically feasible

- Constraints/consequences: • mini safe – room construction in the by-pass (likely) • interference with transport volume: Power Converter calibrations racks• remaining free space along the USC55 wall before the PAD =20m

RQX.R5RTQX2.R5

RYCA01-02

RYMCB01-05

RYLB01RYLC01

ERD1/56

DYPG01 & 02

CYCIP01

GYPOS01 à 03

CYNET01 – RYSC01

EYU01 & 02 – EYP01 & 02EYC01 à 04 (h=1.8m)

EOD1/56 – EOD3/56

EBS1/56 – UPS machine

QYC01 à 04 (h=2.00m)

CYTIM01 – CYFRE01 (h=2.00m)

RYSA01 – 02 (h=2.00m)

mini- safe room

UJ561 by-pass

Oct. 2010- Ph. Orlandi, JC Guillaume EN/ELJP Corso, Y. Muttoni, EN/MEF

TYCFL02

DYXF01

YYACS01RYSA01 - 02

CYCIB01

6 racks moved from UJ56 1rst floor to USC55 /machine area

SYAFD01 eqpt moved from UJ56 ‘safe room’ to USC55/ CMS racks room (S2A19)

USC55 machine area

Option B partial relocation in the by-pass & the UJ561 (UJ561 being the CMS exit path)

N.B. request of the equipments owners: 6 racks in the USC55/machine area and 1 rack in the USC55/CMS area

- Option B1: install 1 raw of racks in the UJ561= technically feasible=> remaining free thickness for the CMS exit path is 1.2 m

- Option B2: install the mini safe-room in the UJ561 = technically feasible=> remaining free thickness for the CMS exit path is 1.1 m thick

Safety requirements concerning exit path (CERN/TIS-GS/2002-03) depends on the number of persons to evacuate and the number of exits foreseen => 0.9m thick for less than 100 persons

RQX.R5

RTQX2.R5

RYCA01-02

RYMCB01-05RYLB01RYLC01ERD1/56

DYPG01 & 02

CYCIP01GYPOS01 à 03CYNET01 – RYSC01

EYU01 & 02 – EYP01 & 02EYC01 à 04 (h=1.8m)

QYC01 à 04CYTIM01 – CYFRE01RYSA01 – 02

Option B: partial relocation in the by-pass & the UJ561 CMS exit path

Oct. 2010- Ph. Orlandi, JC Guillaume EN/ELJP Corso, Y. Muttoni, EN/MEF

Option B: partial relocation in the by-pass & the UJ561 CMS exit path

Oct. 2010- Ph. Orlandi, JC Guillaume EN/ELJP Corso, Y. Muttoni, EN/MEF

TYCFL02

DYXF01

YYACS01RYSA01 - 02

CYCIB01

6 racks moved from UJ56 1rst floor to USC55 /machine area

SYAFD01 eqpt moved from UJ56 ‘safe room’ to USC55/ CMS racks room (S2A19)

USC55 machine area

Civil engineering – Ducts to be drilled

5 new ductsØ mm – length 2m

‘mur tympan’ : 5 new ducts Ø 350mm – length 2m

Civil engineering – Ducts to be drilled

Main work to be performed for both Options A & B

Civil engineering activities: - drill 4 ducts between UJ56 and by-pass for PC cables,- drill ducts in the wall between by-pass and UJ561 CMS exit path (cables & ventilation)- drill 5 ducts in the wall UJ56- machine- reinforce the by-pass vault structure (under study)

CV activities: UTAs and cooling system installation

EL activities: cables trays displacement/installation, cables installation

Access : sector door to be moved from by-pass to the UL56 (displt of 11 m)

Mini-‘safe room’ construction in the by-pass/UJ561 (under study),

BRAN pipes to be rerouted

Draft time estimate – main activities

- EL activities: - 15 months (1 shift)- 11.5 months (2 shifts)

- CE activities: 4 ducts between UJ56/ by-pass - 3 months 5 between UJ56- machine - 1 month 4 ducts in the UJ561/by-pass wall: - 3 weeks

- CV activities: - 2.5 months (1 shift)

- AFD activities: - 5 weeks (detection interruption 5 days) ( 1 shift)

- Safe room : - 3 weeks ( 1 shift)

- Displacement sector door: GS/ASE: - 2 days mechanical work :- 1 week

The work load equivalent for options A/B => identical time estimate

for the options A/B/C

compatibility between EL, CE, and CV activities => Planning

negotiation needed with contractor

Draft cost estimate – main activities- EL activities: opt A: 2.405 MCHF /opt B: 2.355 MCHF (1 shift)

opt A: 2.555 MCHF /opt B: 2.502 MCHF (2 shifts: 10% manpower)

- CE activities: 4 ducts between UJ56/ by-pass: 200 KCHF 5 between UJ56- machine: 25 KCHF 4 ducts in the UJ561/by-pass wall: 40 KCHF - CV activities: opt. A: 420 KCHF/ opt. B: 445 KCHF (1 shift)

- AFD activities: 96 KCHF (1 shift)

- Safe room : 57 KCHF

- Displacement sector door: GS/ASE: 30 KCHF mechanical work : t.b. estimated

EL 1 shift: opt. A: 3.233 MCHF / opt. B: 3.2 MCHFEL 2 shifts: opt. A: 3.383 MCHF / opt. B: 3.355 MCHF

Provisional budget~ 3.4 MCHF

for the options A/B/C

Open issues

integration study (details) precise schedule (co-activities) and impact on other LHC activities negotiate the 2 shifts scenario with EL contractor final budget

To be done after the decision on the baseline for the mitigation option

- Integration studies: - 1 month (completion and compatibility CV/EL/LHC drawings, documentation preparation, approval loop)

- Planning : - 1 month (sequence, co-activities)

- EL activities: - DC/CTR: 1 year (Market Survey for special cables?, supply)- power distrib. : 8 months (study, supply)

- CE activities: - 3 months (offers, contractor, work set-up)

- CV activities: - 6 months (Market Survey for special UTAs?, supply)

- AFD activities: - 3 months (supply, work set-up)

Time to get ready for installationonce baseline mitigation is chosen

1 year and 1 month process

Installation in Jan. 2012decision on the baseline end of Nov. 2011

Summary

Option A: full relocation in the by-pass = technically feasible

Option B: partial relocation in the by-pass & the UJ561 (UJ561 being the CMS exit path) = technically feasible (CMS exit path 1.2m-1.1 m thick)

It looks reasonable to assume that the work could not be performed in less than 15 months for a budget of about 3.4 MCHF

Decision on the mitigation option is needed this month to be ready in January 2012.

Many thanks to all the involved teams for their work during this last month

Especially to GS/SEM: John Osborne and Antoine KosmickiEN/EL: Jean-Claude Guillaume, Philippe Orlandi , Nuno dos SantosEN/CV: Piero Valente EN/MEF-INT: Yvon Muttoni, Jean Pierre Corso

Back –up slides

Interferences with loading volume:PC: 52 mm PC calibration racks: 338mm UTA: 40 mm

PC calibration racks

PCs

Interferences with loading volume : UTA: 40 mm

On UJ561 wall side: dedicated racks with height of 1.8 m in the safe room and 2m elsewhere to stay below the cable trays of ‘forward detectors’(2.4m high).

Safe room 1rst door at 21 mm from loading volume -> ok

20 m free between the last UTA control box and the PAD door

Safe room:9 fire resisting doors (l. 1 m, h. 2.1 m) Structure in ‘siporex’ 15 cm thick (external dims. L. 16m, h. 2.4 m, d. 0.85 m)

- Note by TIS/GS in October 2001 concerning the minimum requirements in terms of access / evacuation of an experimental area

- 79th SAFETY CO-ORDINATION MEETING FOR LHC EXPERIMENTS (19/10/2001) https://edms.cern.ch/document/327707/1

Safety requirement for evacuation exit path(documentation)

Source: 79th safety coordination meeting for LHC experiments (19/10/2001)

Source: 79th safety coordination meeting for LHC experiments (19/10/2001)

Source: 79th safety coordination meeting for LHC experiments (19/10/2001)

Source: 79th safety coordination meeting for LHC experiments (19/10/2001)

Source: 79th safety coordination meeting for LHC experiments (19/10/2001)

Cost /schedule estimate - breakdownSafe room (options A & B):- devis Ingo: 9 fire resisting doors (material + manpower)= 36 KCHF / max 9 days- external contractor: the full safe room (structure + doors)

- material: 27 KCHF- manpower: 30 KCHF- schedule: 2-3 weeks- delay for material delivery: 10 weeks

Civil engineering (options A & B)-Drilling 4 ducts between UJ56 and by-pass (diam. 350mm, l. 16.7m): ???- drilling apertures in the UJ561/by-pass wall (3 apertures h25cm, t. 60 cm or 1 aperture h.75cm, t. 60 cm): 30 KCHF /1-2 weeks

-EL activities:-Control and DC cables: 1.5 MCHF (option A); 1.45 MCHF (option B); shift work +10%-Puissance: 1.2 MCHF (options A & B), shift work +10%-Total: 2.7 MCHF (option A); 2.65 MCHF (option B) ; shift work +10% -Planning (see table): one shift: 17.5 months / 2 shifts: 12 months

-CV activities-Budget (material + manpower)= 380-420 KCHF-planning (see table): cooling: demi water: 3 weeks -3 persons/1 shift; iced water: idem

- ventil: 3 weeks -3 persons/1 shift; elec: 3 weeks -3 persons/1 shift- control: 1 week- 2 persons/1 shift

EN/EL planning tentative 9th October 2010

J. –C. GuillaumeGiven for the 1 shift option: total= 15 monthsGain 2 months vs previous version (activities in the safe room in // control cable inst. In UL55

compatibility between CE, CV and EL activities ?=> planning