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LBT Q4 2007 Engineering Review

PLMG: Plumbing, includes chiller systems, instrument lab cooling, and LUCIFER cryo -compressor cooling. LBT Q4 2007 Engineering Review. Highlights (Q4/2007). Chiller systems operate off of siphon principle, not good for our dynamic system

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LBT Q4 2007 Engineering Review

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  1. PLMG: Plumbing, includes chiller systems, instrument lab cooling, and LUCIFER cryo-compressor cooling LBT Q4 2007 Engineering Review

  2. Highlights (Q4/2007) • Chiller systems operate off of siphon principle, not good for our dynamic system • 47 deg chill water loop needs modified, we continue to have issues with the secondary loop Primary Loop Secondary Loop

  3. Open Issues Technical Chill water lines are not to print Chill water system design for variable viscosity needs review 47 deg chill water loop not adequate expansion Schedule Verify operation, coil sizes, redo prints, put in expansion tanks, proper bypass Financial Costs have not been fully identified Resource Slowly moving ahead on definition and solution of issues, not found consultant to address overall system design issues Progress limited by other high priority tasks

  4. Progress (Q4/2007) 47 deg chill water loop control valves working properly Some chiller problems identified, i.e. flow in secondary loop and glycol/water expansion and contraction Instrument room completed, except for the floor and crane certification

  5. Planning (Q1/2008) • Determine what is happening with the chill water pipe • Redesign 47 deg water system, still needs to be done

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