11

LBT Q2 2008 Eng/SW LBT Q2 2008 Eng/SW ReviewReview

ICS – Instrument Cooling SystemICS – Instrument Cooling System

22

Highlights (Q2/2008)Highlights (Q2/2008)

IC system is operating, it has not been commissionedIC system is operating, it has not been commissioned Both sides are operating, lightly loadedBoth sides are operating, lightly loaded Upper and lower tree house commissioned action item list is Upper and lower tree house commissioned action item list is

33

Open IssuesOpen Issues TechnicalTechnical

IC system not designed for fluctuating loadsIC system not designed for fluctuating loads Heat exchanger on tree houses restrict flow to 7 gpmHeat exchanger on tree houses restrict flow to 7 gpm ICS needs to be tested to determine if design requirements are ICS needs to be tested to determine if design requirements are

met, commissioningmet, commissioning Chiller and IC system operates off of siphon principle, not good Chiller and IC system operates off of siphon principle, not good

for our dynamic systemfor our dynamic system ScheduleSchedule

Verify operation, coil sizes, redo prints, proper bypassVerify operation, coil sizes, redo prints, proper bypass FinancialFinancial

Maybe large if have to redesign, however, if it meets the Maybe large if have to redesign, however, if it meets the requirements then there will be no more costrequirements then there will be no more cost

ResourceResource Searching for a consultant to address overall system design Searching for a consultant to address overall system design

issues, has been a low priority, it will become high priority as issues, has been a low priority, it will become high priority as instruments are addedinstruments are added

44

Planning (Q3/2008)Planning (Q3/2008)

Find a solution to the flow restriction in the tree housesFind a solution to the flow restriction in the tree houses Test IC system for heat load performanceTest IC system for heat load performance Install larger expansion tanks and pressure pumps near the Install larger expansion tanks and pressure pumps near the

elevation axiselevation axis