P5: UJ56 Relocation StudyContributions from
BE -ABP -ASR -BI -CO
DG -RP EN -CV -EL -MEF -STI
GS -SEM -ASE
IT -CS PH -CMX TE -CRG -EPC -MPE
09/06/2010
Project overview and scope
Current knowledge:→ Expected levels of radiation in UJ56 are known→ Shielding along the LHC side of the tunnel will not provide a long
term solution to avoid single event upset in the electronics systems installed in the UJ56
→We cannot wait until the second long shutdown (~2014) without major risks to the electronics
→ Relocation of equipment has to be considered
Purpose of study:→ Identify what can be done during the next shutdown in 2012→ Identify potential showstoppers
09/06/2010
What equipment is at risk?
09/06/2010
Gnd floor:Infrastructure electronics for EN-EL,EN-CV and GS-ASE
S Maridor EN-MEF
→ First attempt – build a shielding wall on the tunnel side of the UJ56→ Initial assessment made in 2009 and presented on Feb 9th 2010.
09/06/2010
Is there any quick fix?... No
Shielding Effectiveness:
- Ground floor: ~10
- First floor: ~2Without shielding With shielding
© R. Versaci et al.
→Goal: Find a permanent solution to relocate the electronics currently in the UJ56 during the 2012 shutdown
→Limitation: For some equipment the cable length is critical (compensators)
→Priority: Racks located on the first floor should be taken care of first since they are the most vulnerable
→Asset: CMS has offered to assist in finding space in its experimental area
→Synergies: Opportunity to improve accessibility to equipment during operation
09/06/2010
Introducing the relocation effort
[email protected] 709/06/2010
Proposal
→Move sensitive equipment from 1st floor and GND floor→Use the UJ561 personnel galley as much as possible
→ Choice of escape route for CMS/LHC personnel to be revisited
→Use parts of the USC55 when needed→Use UL55 Bypass tunnel when needed
[email protected] 809/06/2010
Scenarios
→Common approach: use the UJ561 and USC55 S4→ 3 options for the CMS escape route
→Scenario A: use space UL55 bypass tunnel in addition→Scenario B: use space in USC55 control room in addition
S4 CTRLUJ561
UL55
[email protected] 909/06/2010
Investing the space in UJ561
→Step 1: Assess what pieces of equipment need to move
All power converters17 racksSome racks will stay, others will be merged or eliminated
[email protected] 1009/06/2010
Investing the space in UJ561
→Step 1: Assess what equipment needs to move
5 Components of the safe room targeted for relocation in the UJ561
[email protected] 1109/06/2010
Investing the space in UJ561
→Step 2: suggest a layout
Philippe Orlandi, JC Guillaume, N Dos Santos [EN-EL]
Equipment organised by cable lengthlimitations
New safe room
Rack AreaPower converters
Evacuating the UJ561 might require new openings to the Bypass
[email protected] 1209/06/2010
Investing the space in UJ561
RQX.R5
RTQX2.R5
RYCA01-02
GYPOS 01 à 03
DYPG01 & 02CYCIP01
CYNET01EYC01 à 03
EYU01 – EYP01
RYMCB01 à 05
RYLB01RYLC01RYSC01
→Step 3: Assign location to equipment
Philippe Orlandi, JC Guillaume, N Dos Santos [EN-EL]
→Remarks:→ If adequately equipped, UJ561 could be accessible
through the USC55 at all times→Sectorisation scheme would have to be revisited→Space left between the power converters and the wall
is ~1m. →Cooling will require demineralised water→Ventilation scheme would include fan coils with a
chilled water link→New cable tray capacity will have to be found→ Cable ducts to be created using coring techniques
→ Impact on the CMS escape route to be assessed09/06/2010
Investing the space in UJ561
[email protected] 1409/06/2010
Insertion of service ducts through coring
Cooled cablesCtrl cables
DC Power cables
Bottle neck Ø=350mmL<12m
From 1st floor
[email protected] 1509/06/2010
Alternative to study for water cooled cablesLength ~ 15m, Ø=350mmSimilar jobs were done between UA and RA
UP56UJ56
1st floor
2nd floor
Insertion of service ducts through coring
If excavation could start from bypass:Better for scheduleAllows work in UP56 in parallel
→Feasibility studies will have to be carried out by GS-SEM→ Impact on neighbouring equipment to be assessed→ Impact on overall schedule to be assessed
09/06/2010
Insertion of service ducts through coring
→3 options should be considered1. Keep the CMS escape route going through the UJ561
- Presence of flammable material- Small clearance between equipment and wall ~1m- Escape route would go through a safe room No need for civil engineering Identical to existing path
09/06/2010
CMS escape route – Option 1
→3 options should be considered2. Use the UL55 Bypass as escape route
- More complicated and longer escape path- Less favourable for ALARA (breezing of potentially
activated air) Limited need for civil engineering work No need to enter the UJ561
09/06/2010
CMS escape route – Option 2
→3 options should be considered3. Create a new escape gallery Width >1.2m Height=2.3m
- Civil engineering work required for ~ 3 months- Insertion in PM56 to be defined Shorter and safer escape route Fully compliant with standard emergency routes
09/06/2010
CMS escape route – Option 3
UXC55
USC55
Pillar WallUPX56
Shelter
PM56
09/06/2010
UP56
UJ561
UJ561?
A
BC
UJ56
3 routes considered at firstOnly limited tooling can be used
CMS escape route – Option 3
[email protected] 2209/06/2010
CMS escape route – Option 3.a
Formal request from CMS to consider a different position for the junction galleryThe new gallery should not introduce any risk to compromise the classificationof the USC55 as a non designated area
Meeting with DG-RP (S Roesler) on 27/05@14:00Possibility that the new junction gallery could introduce RP risk in the USC55No time to produce simulations before the workshop
JP Corso EN-MEF
[email protected] 2409/06/2010
CMS escape route – Option 3.c
CV equipmentTo relocate for
R2E
BRAN GasCan be moved
6.92m
J Bos PH-CMX
→Connection of route3 inside the UJ56 allows keeping most of the services in place
09/06/2010
CMS escape route – Option 3.c
J Bos PH-CMX
→Remarks:→CMS would like route 3.c to become the baseline→ Impact of CE work on the overall work sequence to be assessed
→Where should the excavation start from?→How to remove the spoil? →How to ventilate the work site?→How to seal off CMS and sensitive equipment in the UJ56?
09/06/2010
CMS escape route
Likely configuration of CMS during the 2012 shut down
[email protected] 2709/06/2010
Relocation in USC55 S4
TYCFL02
DYXF01
YYACS01RYSA01 - 02
CYCIB01
→ Some rack users wish to group their electronics in the USC55 S4
Philippe Orlandi, JC Guillaume, N Dos Santos [EN-EL]
[email protected] 2809/06/2010
Relocation in USC55 S4
S Maridor EN-MEF
Link between Bypass andUSC55 is nearing saturationBut should still be OK
S4 area is part of the USC55AUG network
→ In addition to the UJ561 and the USC55S4 area, the UL55 bypass would be used. Because of the existing cable trays, smaller racks would have to be used- Equipment installed there would not be available during operation- Using space for future upgrade projects+ No need for additional CE work+ Work in an area relatively empty
09/06/2010
Relocation scenario A
[email protected] 3009/06/2010
ERD1/56
EOD1/56 - EOD3/56
EBS1/56 - UPS machine
QYC01 - 03
RYSA01- 02
CYTIM01 – CYFRE01
Relocation scenario A
Philippe Orlandi, JC Guillaume, N Dos Santos [EN-EL]
→ In addition to the UJ561 and the USC55S4 area, the USC55 control room area would be used
- Need for new metallic structures- Need for 1 service duct (CE work) between UJ561 and USC55- Additional mixing of LHC/CMS networks (already the case in S4)+ Equipment available at all times+ Work on the metallic structures could be done during operation => no
penalty for schedule+ Space in Bypass remains available for future projects such as inner
triplet upgrade+ Synergies with CMS upgrade programs
09/06/2010
Relocation scenario B
[email protected] 3309/06/2010
[email protected] 3409/06/2010
A second emergency exit has to be foreseen for theEvacuation of personnel in the new control room
[email protected] 3509/06/2010
[email protected] 3609/06/2010
→Whatever scenario is chosen the UJ56 will still host some equipment→Radiation Hard or Radiation Tolerant→The space freed by the relocation will allow the
erection of a shielding wall inside the UJ56, possibly with a roof
→Such a wall might not be needed after all, depending on tests to be performed on EN-EL equipment at CNGS
State of the UJ56 after relocation
[email protected] 3709/06/2010
State of the UJ56 after relocation
Work method to be used to assemble the shielding wall still to be designed
[email protected] 3809/06/2010
ESD2/56ESD3/56
ESD1/56
Commutation et distrib. 48 Vdc
Chargeurs et bat. 48 Vdc
4 racks patch pannel
Tabl. HT 18 kV
Transfo 18/.4 kV
EBD1/56
EBD2/56EAD1/56
Ep. 1 m
State of the UJ56 after relocation
Philippe Orlandi, JC Guillaume, N Dos Santos [EN-EL]
State of the UJ56 after relocation
→During relocation work, essential services would be powered through temporary switchboards installed on the 1st floor of the UJ56
Space left free by relocation of Power Converters
[email protected] 4009/06/2010
State of the UJ56 after relocation
→Should all equipment in the safe room be made radiation tolerant or be relocated, substantial cost saving would be made on both the inner and outer shielding of the UJ56
[email protected] 4109/06/2010
Remaining issues to study
→Installation/construction methods and impact on schedule/cost→Shielding wall→CE work gallery/ducts→CV work (Water cooling and ventilation)→Cable tray capacity
→Impact of work on CMS & LHC (loss of services, dust..)
→Requests of a few racks owners
[email protected] 4209/06/2010
ID Task Name Duration
1 Install cooling pipes in UJ561 (demi and chilled water) 6 wks
2 Prepare removal Power Converters from UJ56 1st floor 30 days
6 Prepare UJ561, UL55 and USC55 for relocation 40 days
12 Move Power Converters to UJ561 10 days
15 Install cables for UPS/ERD/Pcters 20 days
16 Install and connect cables to UPS and Power Converters 4 wks
17 Install and connect cables to control racks (AU, switchboards…) 4 wks
18 Prepare UJ56 for reorganisation 20 days
19 Remove cables linked to Ctrl protection and Survey 4 wks
20 Prepare relocation of EL safe room 30 days
21 Install temporary switchboards in UJ56 1st floor 6 wks
22 Install short cables between switchboards 6 wks
23 Connect temporary switchboards 6 wks
24 Switch on temporary switchboards 6 wks
25 Remove existing equiipment in safe room 6 wks
26 Build shilding wall 6 wks
27 Excavate escape gallery + coring jobs 12 wks
28 Build new UJ56 saferoom 20 days
29 Erect new partit ion walls 2 wks
30 Modify false floor 2 wks
31 Reinstall safe room in UJ56 40 days
32 Install cable trays 8 wks
33 Install new switchboards 8 wks
34 Install cables to new switchboards 8 wks
35 Switch on new switchboards 8 wks
36 Form service ducts 8 wks
37 Install ctrl and DC cables 100 days
38 Install ctrl and DC cables between UJ56 and UJ561, UL55 and USC55 20 wks
39 Install patch panels in UJ56 racks (not relocated) 20 wks
40 Install connectors 20 wks
41 Commiss ion new cables + connectors 20 wks
42 Install cooled cable trays 30 days
43 Install cable supports 6 wks
44 Install cooled cables + test 6 wks
45 Commiss ion full system 6 wks
Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug SepQtr 4, 2011 Qtr 1, 2012 Qtr 2, 2012 Qtr 3, 2012 Qtr 4, 2012 Qtr 1, 2013 Qtr 2, 2013 Qtr 3, 2013
Very first draft time estimates
Time window for CE and shielding work
Total EN-EL work ~ 14.5 Months CE gallery ~ 3 months
[email protected] 4309/06/2010
Very first draft time estimates
→Once the work methods will have been designed, opportunities to work in parallel could emerge.
→Many pieces of information are still missing. This prevents the design of a reliable schedule.
→It looks reasonable to assume that the work could not take less than 15 months.
[email protected] 4409/06/2010
Very first draft cost estimates
→EN-EL work: ~ CHFM2.3→Not including work to be done by other service groups
contributing to the relocation of EN-EL equipment→GS-SEM work:→Escape gallery: < CHFM1→Service ducts: CHF4,000/m→E.g: 15m link between UJ56 and bypass = CHF60,000
→Costs of fire doors, smoke detection, metallic structures, cooling and ventilation, re-commissioning still not assessed
[email protected] 4509/06/2010
Summary
→The relocation program at point 5 is a major undertaking.
→It will remain a cross department effort→It will be a multimillion CHF project→It will be difficult to fit it into a 1 year shutdown→Many pieces of information are still missing→Defining a baseline scenario is urgently needed to
focus the few resources available on detailed studies
CERN, February 9th Extended R2E Seminar & Workshop PreparationCERN, February 9th Extended R2E Seminar & Workshop Preparation
F. DELSAUX
ENVIRON 18 MHT LIBRE 2600 mm
CHICANE
UJ56
1500
R562
VERS UJ56
VERS UJ57
UJ56 Shielding Option
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CERN, February 9th Extended R2E Seminar & Workshop PreparationCERN, February 9th Extended R2E Seminar & Workshop Preparation
BLINDAGE UJ56
MUR FIXE ACIERHAUTEUR 2000mm
COMPLEMENTBRIQUETTES ACIERHAUTEUR 600mm
BLINDAGE ACIERDEMONTABLEEP. 400mmHAUTEUR 2000mm
MONORAIL
RAIL DE MANUTENTIONDES BLOCS DE BLINDAGE
300mm
800mm
300mm
400mmxz view
UJ56 Shielding Option
F. DELSAUX
47
Added shilding
CERN, February 9th Extended R2E Seminar & Workshop PreparationCERN, February 9th Extended R2E Seminar & Workshop Preparation
xz view
UJ56 Shielding OptionAssuming 1 year of operation at nominal luminosity (100 fb-1)
Shielding Effectiveness:
- Ground floor: ~10
- First floor: ~2
Upstream weak-point could be improved, so could be the maze … BUT
48
© R. Versaci et al.
CERN, February 9th Extended R2E Seminar & Workshop PreparationCERN, February 9th Extended R2E Seminar & Workshop Preparation
Assuming 1 year of operation at nominal luminosity (100 fb-1)
Shielding Effectiveness:
- Ground floor: ~10
- First floor: ~2
w/o shielding
UJ56 Shielding Option
with shielding
1st Floor-Shielding can hardly be improved
-> First Floor Critical
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© R. Versaci et al.