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Schedule: Still on time ?

Schedule: Still on time ?. Content: Part I: status of installation and present delay What was planned a year ago Status of the QRL, magnet transport and interconnect Part II: can we limit the increase of the delay? The “hard limits”

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Schedule: Still on time ?

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  1. Schedule: Still on time ? • Content: • Part I: status of installation and present delay • What was planned a year ago • Status of the QRL, magnet transport and interconnect • Part II: can we limit the increase of the delay? • The “hard limits” • Dates for hand over to the Hardware Commissioning • Conclusions S.Weisz

  2. Situation a year ago: • Civil Engineering: • Last underground area at Point 5 (RB/UJ56) delivered mid-November 04 • General services: • Close to completion in most sectors • Collimation region at Point 7 just being re-designed • QRL: • Sector 7-8: all elements to be repaired and re-installed • Sector 8-1: 2 validation cells installed • Cryo-dipoles: • 480 magnets to store at the surface • Struggling to find storage space • New installation strategy: • Compressed schedule – beams in summer 2007 • Skip QRL cold tests (except 7-8 & 8-1) • Install cryo-magnets (transport & interconnect) in parallel with QRL installation and leak tests S.Weisz

  3. QRL (re-)Installation & Cold tests Sectors 7-8 & 8-1: installation validation S.Weisz

  4. Status of QRL installation: • QRL in sector 7-8: • Sub-sector A & B expected ready in July, cold tests started mid-September • Completion of the full sector expected for September, done in December • QRL in sector 8-1: • Cold tests expected in September, done in December • On-going installation: • Sector 4-5: installed and pressure tested (except JR) • Sector 3-4: about to finish, pressure test scheduled for February 18-19 • Sectors 5-6 & 6-7: in progress • 3 months delay with respect to last year estimate S.Weisz

  5. LSS8L power tests: • Postponed, DFBM were not available … • Impact on HW commissioning (short circuit tests in July - on time) S.Weisz

  6. DFBM for LSS8L 5 months delay DFB Project Short term: schedule for DFBs of sector 7-8 and 8-1 A. Perin – MARIC, December 21st, 2005 S.Weisz

  7. Magnet Transport S.Weisz

  8. 4 months delay assuming a rate of 20 magnets/week* *20 transports/week achieved during wk 2 & wk 3, 2006 Status of cryo-magnet transport: • Sector 7-8: • LSS8L: expected magnet transport in October, Low-/DFBX/D1/D2/Q4 installed in December, Q5 not ready • Arc: all magnet in place expected for September, 40 dipoles and 17 SSS transported by December 22th, 2006 • Sector 8-1: • Arc: all magnet in place expected for September, 111 dipoles and 18 SSS transported by December 22th, 2005 • No installation during 6 weeks of QRL cold tests • Sector 4-5: • Arc: all magnet in place expected for December, 48 dipoles and 9 SSS transported by December 22th, 2005 Expected to transport ~600 cryo-magnets in 2005, 249 done S.Weisz

  9. Problems with cryo-magnet transport: • Slot availability: • QRL sub-sectors not ready, leak tests much longer than anticipated in sector 7-8 • Slots for SSS with jumper not available: cold tests and repair of SM modules in sector 8-1, new leaks in sector 4-5 • Magnet availability: • Dipoles non-conformity problem now solved • SSS with plugs are late (required for partial leak tests of interconnect) • Special quadrupoles for LSS and DS are also very late • Reliability of transport system: • Problem with EL power distribution line  replace all breakers (~1 month) • Problem with safety valve of unloading equipment (risk to drop a magnet!)  test and replace all valves (~1 month) • Problems with overheat, guiding line, oil for axle, etc… • “Small incidents” create discontinuities and have severe consequences on the organisation of co-activities in the tunnel S.Weisz

  10. Cryo-magnet Interconnect S.Weisz

  11. ~3 months delay assuming 6 months* to interconnect a sector *foresee 7 months for the 1st sector, then 5 months per sector Status of cryo-magnet interconnect: • Sector 7-8: • LSS8L: expected for November, not started yet • Arc: expected 50% done by end of year, 29 in progress (14%) • Sector 8-1: • Arc: expected 70% done by end of year, 52 in progress (25%) • Sector 4-5: • Arc: expected 25% done by end of year, about to start … S.Weisz

  12. Part I: status of installation and present delay Still on time? • No, minimal delay of 3 months, up to 5 months on procurement of certain elements What did we learn? • Experience with new activities: QRL pressure & cold tests, magnet transport & interconnect, installation & test of power converters, etc… • Leak tests and leak finding are very delicate, they consume more time than expected • Co-activities versus efficiency, we are close to saturation! S.Weisz

  13. Part II: can we limit the increase of the delay? • The “hard limits”: • Present schedule for QRL installation • Magnet transport rates • Procurement of the special SSS • Present schedule for the DFBs • Hand over to the Hardware Commissioning: • Interconnect, global leak tests & cryostat closure scenario • Dates when sectors are ready for Hardware Commissioning S.Weisz

  14. New schedule for QRL installation: Last sector (sector 1-2) expected by August 06, now scheduled for November • maintain present delay on QRL installation S.Weisz

  15. Cryo-magnet transport rate: • Cryo-magnet transport vehicles: • 2 “CTV” convoys for dipoles only • 2 “MCTV” convoys for dipoles and long special SSS • 2 “STV” convoys for arc SSS and short special SSS • Transport with CTV & MCTV convoys: • 1232 MB, 24 Low-, 24 long special SSS, 16 D1/2/3/4 = 1296 elements • 240 are now in place  1056 to go • Assume transport rate with CTV & MCTV at 15/week until Easter, then at 18/week takes 61 weeks in total  March 2007* • Transport with STV convoys: • 376 arc SSS and 74 short special SSS = 450 elements • 52 are now in place  398 to go (7.5 on average over 61 weeks!) • SSS(arc + short special) for sector 5-6 & 6-7 will come through Point 6 (storage & final preparation in UX65, could reach 2 transports/day/STV) • Reduce delay with respect to present schedule to 3 months *assuming no interference with QRL installation in UJ22 S.Weisz

  16. Special SSS dashboard previsions at increased rate Rate of cryostating of special SSS in 904 has to increase (1.15 S4/week) Rate of cold tests of special SSS has to go up to 1.25 S4 /week. Last special SSS installed in the tunnel at the end of March 07. S.Weisz N. Catalan Lasheras, S4 coordination – January 13th, 2006

  17. Latest DFB in sector 15-Apr-06 7-8 8-1 15-Jul-06 15-Sep-06 4-5 3-4 11-Aug-06 07-Sep-06 5-6 23-Oct-06 6-7 1-2 02-Dec-06 2-3 04-Feb-07 DFB Project A Perin – MARIC December 21st, 2005 S.Weisz

  18. Up to 4 months lag behind magnet transport DFB versus Cryo-magnet Installation S.Weisz

  19. Welding V1, V2, E, X, C’, K2, Brazing BP, spools, Y - ic/ic - 8 days - CRI Partial Assembly Qualification - 2 cell / 2 cell- 1day - MEL Welding : M1, M2, M3, K1 - 2 cell / 2 cell - 1day -CRI Line N insertion - 2 cell / 2 cell - 3 days- CRI 6 weeks for a late isolated element Line N cabling - 2 cell / 2 cell - 1 day - CRI AIV - 2 cell is tested with its successor and predecessor - 3 days - MEL Provisionnal closure - ic/ic - 4 days - CRI Vacuum tests - Between 2 SSS with plugs - 2 wks - VAC 9 weeks between transport of cryo-magnets and end of Interconnect Phase I Interconnect Phase I: S.Weisz

  20. Interconnect, global pressure & leak tests, and cryostat closure • Interconnect Phase I: • Requires at least 9 weeks after transport of cryo-magnets • Allocate 6 weeks after the transport of a late and isolated DFBA • Global pressure & leak tests: • Requires all cryo-magnets and DFB’s connected • 2 weeks allocated in present schedule (probably very optimistic) • Cryostat closure - Interconnect Phase II: • Re-open the cryostat to install thermal shield and MLI • Close and check leak tightness of the external compensators • 8 weeks allocated in present schedule (probably pessimistic) • Assume a minimum of 95 days between end of magnet transport and availability of sector for HW commissioning • Assume a minimum of 80 days between installation of DFBA’s and availability of sector for HW commissioning S.Weisz

  21. 5 sectors ready within 4 months Sectors ready for Hardware Commissioning S.Weisz

  22. Conclusions: • Ramping-up of many new activities in 2005: • Repair, installation and tests of the QRL • Surface logistics, preparation and underground transports of magnets • Alignment, interconnect in a difficult environment (space & co-activities) • Status of installation versus planning: • We are not on time, actual delays spans from 3 to 4 months • We are worried by the late procurement of DFB’s, Special SSS’s, and SSS’s with plugs, where peak delays of 5 months with respect to planning occurred • Cryo-magnet transport approaching nominal rates, SSS installation through Point 6 should allow to catch-up the SSS backlog • Leak test and leak finding require more time than expected • Hardware commissioning: • Sector 7-8 should be ready for hardware commissioning by August 2006 • The hardware commissioning of Sector 8-1 will not be finished this year • Last Sectors (1-2 & 2-3) should be ready for HW commissioning by August 2007 • The present schedule of the DFB’s will impose drastic time & geographical constraints for the hardware commissioning  Situation radically different from last year S.Weisz

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