AMS Tracker Thermal Control System TTCS

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AMS Tracker Thermal Control System (TTCS) TTCS
Progress July-Oct 2007 NLR-team J. van Es, P.
Dieleman, B. Verlaat (NIKHEF), A. Pauw, G. van
Donk, T. Zwartbol, SM. Bardet, M. BsibsiSun
Yat-Sen University team ZH. He, KH. Guo, JQ. Ni,
SS. Lu, XZ. Wang, XM. Qi, TX. Li, YH Huang, X.
Huang, Mo, Xiao et al INFN-AMS-team R.
Battiston, M. Menichelli, C. Gargiulo, A. Alvino,
E. Laudi, et al.CAST-team M. Jianyin, J. Cao,
G. Lin et al. MIT-team V. Koutsenko, Cai, A.
Lebedev AIDC-team B. Hong, N.J. Lin, B.C.Y. Hsu,
W.M. Hsu, A.J.M. Shue, Chun-Ching Yeh. K.M. Sun,
D. Dai, M. Tsang, YT Ho, Grand Jiang ,
Tsung-Cheng Lin , David Dai, Y.T. Ho , Chung Lai,
Robert Kuo, Mark Chen, Bill C.Y. Hsu, N.J. Lin

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Contents

• System Design Development Issues
• Last box design issues
• Box integration and functional check preparations
  
• Component Progress (July-October)
• Pump Progress (PDT/MIT)
• Accumulator progress (CAST/SYSU)
• Condenser Progress (AIDC/NLR/INFN/SYSU)
• HX progress (AIDC/NLR/INFN)
• DPS/APS (CETC/SYSU)
• Heater assemblies (cold orbit pre-heaters)
  (SYSU)
• Evaporator assemblies (NIKHEF/UNI Geneva)
• Transport tubing design and cable routing (INFN)
• Planning and points of concern

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System Design Status
Different connection
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System Design Status
Different connection
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Changes in development

• TTCS Model philosophy change
• Old EM ? 2 x QM ? 2 x FM
• New EM ? 2x FM ? 1xQM
• Start directly with FM manufacturing 
  integration of boxes prior to the QM
• Skip the TTCS FM boxes performance testing at
  SYSU and send the boxes directly from INFN to
  CERN
• Perform only performance testing on the QM box at
  SYSU
• Advantages
• FM boxes skip 2 transportations and 1 test
  campaign
• Disadvantages
• Risk (problems will show up in FM and not in QM)

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Changes in development

• Procurement is streamlined
• SYSU budget located at CERN
• Procurement communication directly from NLR (J.
  van Es) to supplier to avoid miscommunications
  and out-of-date numbers.
• Sauro Bizzaglia sends plug and play faxes to
  suppliers and co-ordinates the CERN internal
  communication with procurement officers

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System Design

• Accumulator control and emergency heaters are
  combined in order to cope with electronic filter
  issue
• Combined heater is 37.5 Watt
• Impact
• Better control for cold cases (large heat leak
  cases)
• Reduction of thermostats on accumulator heat pipe
  
• Less complex safety analysis
• Accu ground test heater combined into one heater.
  
• Accu ground test heaters are protected by
  Pt1000s, pressure relief valve and pressure
  monitoring. Thermal Switches deleted.
• System EM testing on-going at SYSU
• Condenser results
• m-g testing started
• Tube design is on-going

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Last Box Design Issues

• Design (drawings) work is shifted to NLR as no
  capability elsewhere is available
• Manufacturing drawings detailing on-going
• Internal tubing secondary box need to be adapted
  for proper two-phase flow in ground testing
• Details on bracket designs updated
• Bonding of box to USS and box components.
  Definition of surface treated (alodined
  surfaces) on-going.
• Plate bending radii to be changed
• Change box rib design to allow for AIDC cabling
  proposal
• Cabling design by AIDC on-going supported by
  Lucio Accardo

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TTCB indications of bonding surface treatment
Interface between USS side plate
I/F start-up radiator and pump brackets
Connection baseplate to start-up radiator
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TTCB
Connection baseplate to start-up radiator
Surface treatment of pump brackets at start-up
radiator attachment interface (connection
brackets to pump housing also alodine?)
Connection baseplate to USS
Connection pump electronics box TTCB baseplate
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Box integration functional check

• Integration framework and procedure formats are
  delivered (NLR)
• SYSU, NLR, INFN and AIDC can work on integration
  procedures
• Identification of possible problem areas in
  integration
• Cutting and welding accumulator feed line
  (addressed by Miaoh Tieh welding company)
• Orbital welding of dead end components (argon gas
  flow)
• Connection Pt1000s to external tubing
  (protection during transportation)

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Box integration functional check

• TTCB Functional check
• Overall set-up is agreed with Electronics group
• H/W for FM TTCB testing TTCE QM CAN I/F PC
• H/W for QM TTCB testing TTCE EM2 CAN I/F PC
• Mechanical set-up of is defined by NLR (Aswin
  Pauw)
• Labview program set-up with operating interface
  with NI DAC is delivered to AIDC and explained
  (Aswin Pauw). Program runs at AIDC.

PC station (linux 2.6)
TCP/IP
CAN-I/F (e.g. EPP-CAN)
TTCB functional check loop
TTCE
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Component Progress Pump

• EM pump runs successful in SYSU Engineering Model
  Loop
• Pre-weld QM and FM tests upto completion
• Delivery end early November
• Pump license (update) is almost ready (one last
  signature is needed and is a formality)
• Pump Functional check set-up is built by NLR
• Ready end of October
• After testing the set-up will travel with pumps
  to AIDC

NLR Pump Functional check set-up
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Component Progress Accumulator

• Manufacturing EM2 upto completion
• Peltiers to be integrated
• Proof and burst pressure testing on welded
  container performed
• with representative spot welded part of wick
  material at inside
• without fan structure
• QM/FM activities
• Brackets under manufacturing
• Integration of accumulator on-going
• Coming up
• Built Accumulator acceptance test set-up at SYSU

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Component Progress Condenser

• A huge effort with contributions from
• AIDC See Separate presentation!
• NLR
• INFN
• Activties
• EM-condensers are manufactured delivered and
  tested in the EM-loop at SYSU (see separate
  presentation)
• 1 EM condenser has been subjected to a thermal
  cycle test
• No performance degradation has been detected
• FM drawings upto completion (this week)
• Coming up
• Wire heater soldering tests
• Additional manifold soldering tests

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Component Progress Heat Exchanger

• All heat exchanger Inconel 625 plates are
  manufactured
• Weld test to determine weld parameters are
  performed (Miaoh Tieh)
• Coming up
• Soldering test needed for soldering wire heaters
  to the Heat Exchanger

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Component Progress Heat Exchanger

• Heat Exchanger brazing tests with Inconel plates
  has been performed.
• Although EM-brazing tests a NLR showed no
  problems. The brazing tests with Inconel plates
  showed locations of no connection. Possible
  causes
• Decreased flatness of plates during storage
• Deformation during brazing
• Too little brazing material available
• Measures are taken for a new brazing test
• Clamping mechanism to increase force during
  brazing
• More solder to allow for slight deformation of
  plates

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Component Progress DPS/APS Heater Assemblies

• DPS/APS
• Manufacturing FM and QM on-going
• New housing manufacturing for more weld samples
  and certificates
• Heater Assemblies
• FM and QM manufacturing in
• Tubes cold orbit heater on transport to AIDC
• Tubes pre-heater to cleaning company
• Soldering at Beijing soldering company

EM Cold orbit heater
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Component Progress Evaporator

• Top Tracker evaporator delivered
• Dallas sensor are equipped to mid planes (Divic
  Rapin)
• Bottom Tracker delivered
• TOF interference solved ?
• Bracket near hydraulic connector
• To be done
• Attach (weld) hydraulic connectors to evaporators
• Cleaning of tubes prior to final integration
  (procedure is delivered to Eric Perrin)

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Component Progress Transport tubing

• Design on-going upto finalisation on 6 November
  (by Antonio Alvino supported by Corrado Gargiulo)
• To do
• Transport tubes on transport to be cleaned
• NLR will make manufacturing drawings of tube
  design
• Manufacturing of bending tools (AIDC)

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Planning
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Conclusion

• Great progress on condensers
• Major tests were performed successfully
• Last design updates are updated and ready and of
  the week
• FM Manufacturing can be started
• Great progress box integration preparation
• Last details on components and box design take
  more time then planned. Detailed drawings need
  all information.
• Model Philosophy change resulted in a planning
  which is in-line with the overall integration
• Planning is tight and relies on few key
  personnell

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Points of concern

• Delivery of transport tubes to CERN
• No design available yet
• To keep the schedule flexibility of all involved
  parties is needed
• Components procurement
• Thermal switch lead time
• Focussing many tasks on few personnel because
  broad knowledge of TTCS is crucial for tasks
• TTCS Box Design and drawing finalisation (NLR)
• Design drawings transport tubes (Alvino/Gargiulo
  and drawings NLR)
• Procedures set-up and close support (NLR)
• Procurement (NLR)
• System design and Project Management of all
  parties (NLR)