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01 Progress VanES Oct05

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    Tracker Thermal Control System

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    AMS Tracker Thermal Control

    System (TTCS)

    TTCS Progress reportTIM-meeting, October 24-28, 2005

    NLR-team: J. van Es, M.P.A.M. Brouwer, B. Verlaat (NIKHEF), A. Pauw, G.van Donk, T. Zwartbol, SM. Bardet

    Sun Yat-Sen University team: ZH. He, KH. Guo, JQ. Ni, SS. Lu, XZ. Wang,

    XM. Qi, TX. Li, YH HuangINFN-AMS-team: R. Batiston, M. Menichelli et al.

    CAST-team: Z. Hou, J. Zhang et al.

    MIT-team: V. Koutsenko, Cai, A. Lebedev

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    TTCS overall progress, component progress & safety

    issues, J. van Es (NLR)

    TTCE progress, thermal modelling progress, Z. He

    (SYSU)

    More detailed presentations during splinter meetings

    TTCS Accumulator design review CAST, Thursday 10:00-12:00

    TTCS Mechanical splinter, Wednesday 14:00-16:00 TTCS Thermal modelling meeting, SYSU, Wednesday 8:30-10:30

    Presentations

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    AMS Tracker Thermal Control

    System (TTCS)

    TTCS overall progress, componentprogress & safety issues

    CERN, October 24-28 October, 2005NLR-team: J. van Es, M.P.A.M. Brouwer, B. Verlaat (NIKHEF), A. Pauw, G.

    van Donk, T. Zwartbol, SM. BardetSun Yat-Sen University team: ZH. He, KH. Guo, JQ. Ni, SS. Lu, XZ. Wang,

    XM. Qi, TX. Li, YH HuangINFN-AMS-team: R. Batiston, M. Menichelli et al.

    CAST-team: Z. Hou, J. Zhang et al.

    MIT-team: V. Koutsenko, Cai, A. Lebedev

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    Wake heatpipe radiator

    Ram heat

    pipe radiator

    TTCS com-ponent box

    Condensers

    Evaporator System design

    Box design

    TTCS Start-up

    Component progress

    Pump status

    Valves, APS/DPS

    Evaporator

    Condenser (freezing)

    Heat Exchanger

    OHP

    Pre-heaters

    Accumulator

    Safety status

    Contents

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    Issue P3.0

    25-07-2005

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    Issue S3.0

    25-07-2005

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    Mechanical design team is reinforced by Corrado

    Gargiulo (INFN) for box design

    SYSU will perform detailed analyses on box and

    component (accumulator) design

    Progress

    Bolt sharing with a.o. main radiator bracket solved

    New draft mechanical box design available detailing

    on-going

    Components interfaces 90% finalised (see

    components)

    Preliminary stress analyses (SYSU) show sufficient

    margin

    TTCS Box design

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    TTCS box design

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    TTCS box design

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    TTCS box design

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    TTCS box design

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    Actions to tackle start-up problem decided on TWG

    meeting at NLR

    Investigate possible super-critical pump start-up

    (PDT/NLR/CAST) Start-up analyses of orbital cases (SYSU/CGS)

    Start-up radiator design decisions

    Investigation of severity of the problem (b-angles)

    TTCS Start-up

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    PDT pump tests are being performed right now

    Pressure head measurements

    suction capability with air or vapour

    Design is based on the MER-rover pump which has

    been tested for 24 hour with closed valves

    (circumstantial evidence)

    Accumulator transition tests from super- to sub-

    critical state will be implemented in EM testing toverify wetting of the wick after super-critical start-

    up

    Super-critical start-up

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    Start-up analyses have been performed & reported

    by SYSU/CGS

    Assumptions: Hot and coldest case orbital data selection by JS.

    AMS start-up configuration

    New box lay-out with start-up radiator

    start-up radiator white-painted

    side walls covered by MLI

    TTCS Start-up Modelling

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    Primary box

    Primary box can start-up from -75 b +60

    TTCS Start-up results

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    Secondary box

    Secondary box can start-up from -35 b +75

    TTCS Start-up results

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    TTCS Start-up modelling

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    TTCS Start-up modelling: Freezing check

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    Start-up radiator improves the TTCS start-up

    capabilities

    No freezing problem is present in the box with the

    start-up radiator Always one TTCS-loop able to start-up in AMS start-

    up configuration

    Additional analyses required for start-up in AMS-on

    configuration

    Supercritical start-up is investigated. If possible it

    is detrimental for pump lifetime (however a system

    operational decision and option) and makes switch

    between P and S at all times possible

    TTCS Start-up summary and remarks

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    Component Status

    Pump (PDT)

    Design Review at PDT

    Electronically pump design is progressing well

    Motor design mature (proven design) BBM curve test performed

    pump can deliver more flow then required

    Impeller adaptations are being implemented to have better

    control Hall effect sensor issue solved (no Pressure dependence)

    Super-critical start-up testing on-going

    Planning EM delivery early December 2005

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    Component Status

    Valves (BE)

    Bradford Engineering BV

    pst-file with envelope on its way (smaller envelope)

    Electrical interface specification update (in specs doc)

    APS & DPS (CETC)

    China Electronics Technology Group Corporation (CETC) isselected as supplier

    Supplier specifications are available

    Contract to be signed next week

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    Evaporator (NIKHEF) (shown in Tracker presentation)

    FM inner rings ready

    FM outer ring in manufacturing

    Condenser (NLR/UNIG)

    Condenser design is freeze proof

    Condenser tubing resistant for MDP of 3000 bar at 5

    C Low-T resistant thermostats are available

    However transport tubing on conical flange can

    reach T

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    Condenser safety conclusion (TWG meeting at NLR)

    Transport tubing have to show leak before burst

    approval required from safety panel

    Advantage is that the condenser manifolds can go

    back to the old upper trunnion bridge locations with

    shorter (lower pressure drop) condenser lines

    Condenser design progress (NLR/UNIG)

    CTE difference between Inconel tubing and aluminium

    plate

    Glue test sample in manufacturing at CERN

    Component status

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    Primary TTCS

    Secondary TTCSCircular tube routing using outercylinder generic hole pattern

    Condenser manifold locationsat the inside of the USS upper

    trunnion bridges.

    Two tube support beams

    Condenser tubes supported

    by radiator diagonal strut

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    Component status

    Heat Exchanger (NLR)

    EM manufacturing upto finalisation

    QM design change agreed

    Split of two-phase part exterior to HX (to avoid phase separationduring ground testing)

    Pre-heater design (NLR)

    Preliminary design finished

    Heaters designed and selected

    Detailed mech design on-going

    NLR Manufactured EM

    Liquid Line

    Q1 Q2Tin Tout

    First copperblock

    T1

    Second copperblock

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    Component Status

    OHP-design (NLR)

    Heaters selected

    Thermal Modelling

    Mechanical design finalised

    Structural analyses to be performedHeater Side

    Loop Tubing Side

    20mm

    100mm

    5 mm20mm

    WireHeater

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    Component Status

    Accumulator (CAST)

    Accumulator component testing

    heat pipe testing

    test programme defined

    Accumulator EM design

    Pressure calculations

    Wick calculations

    Structural design

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    Component Status

    Accumulator (CAST)

    EM manufacturing on-going

    QM design to be started

    More details and reviewon design in splinter session

    on Thursday

    Accumulator shell

    Accumulator with wick structure

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    Safety Status

    Pressurised systems table almost complete

    Component information coming in APS, DPS, valves (TBD)

    Mechanical

    Mechanical material and component list far from complete(suppliers information needed)

    Structural analysis for box and components to be finalised

    Thermal Models are running and can provide safety

    information Radiator heater design updated


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