Progress On TRD Gas System
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Transcript of Progress On TRD Gas System
July 27 2005 Martina Green 1
Progress On TRD Gas Progress On TRD Gas SystemSystem
AMS TIM at CERNAMS TIM at CERNTRD Splinter MeetingTRD Splinter Meeting
July 27, 2005July 27, 2005
Martina GreenMartina Green
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TRD300 Liters
Manifolds
Mixing Vessel D200 psia
CO2
940 psia
Xe
1550 psia
Box S
Box C
17.6 -20.4 psia
Schematic of the AMS-TRD gas system.Schematic of the AMS-TRD gas system.All pressures are at 25 C.All pressures are at 25 C.
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Box S Sub-assembliesBox S Sub-assemblies
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Box S Pressure Relief Valve
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Status of Flight ModuleStatus of Flight Module
• COCO22 and Xe vessels and bosses (Ardé): and Xe vessels and bosses (Ardé): readyready
• Burst disks (BS Burst disks (BS && B Safety Systems): B Safety Systems): in hand @ MITin hand @ MIT
• Relief valves for Box S (Marotta):Relief valves for Box S (Marotta): in hand @ MITin hand @ MIT
• Flight qualified cables (Glenair):Flight qualified cables (Glenair): In hand @ MITIn hand @ MIT
• Brackets for Fill/Vent/Tower valves:Brackets for Fill/Vent/Tower valves: CERN CERN MIT MIT
• Three Sub-assyThree Sub-assy.. pre-assemb.pre-assemb. MIT MIT Ardé (05/2005) Ardé (05/2005)
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Preassembled Flight Sub-Preassembled Flight Sub-assembliesassemblies2-Valve GP50
2-Valve GP502-Valve GP50
2-Valve GP50
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Preassembled Flight Sub-Preassembled Flight Sub-assembliesassemblies
2-Valve Filter
22--Valve FilterValve Filter22--Valve FilterValve Filter
2-Valvev Filter
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Preassembled Flight Sub-Preassembled Flight Sub-assembliesassemblies
4-Valve4-Valve
4-Valve
4-Valve
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Box S Box S Sub-Box S Sub-assembliesassemblies
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Arde Production ScheduleAugustAugust DecembeDecembe
rr
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Box S Box S - - Mounting Mounting Platform Platform • Completed Completed Arde ( Arde (07/200507/2005))
Box S Box S Mounting Mounting PlatformPlatform
Shipping Shipping UnitUnit
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Open Issues with Flight Open Issues with Flight ModuleModule
• Vessels heatersVessels heaters• Foil or stickFoil or stick : : waiting for Arde’s feedback• InstallationInstallation: : Arde or MIT• ThermostatsThermostats: to be finalized & ordered
• TRD heaters: TRD heaters: Power? (UB’s details)Power? (UB’s details)
• Xe/COXe/CO22 vessesl: vessesl: Fill Location & Fill Location & ProcedureProcedure
• Arde Contract: Arde Contract: Subcontract? Subcontract?
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Box S EM - Previous StatusBox S EM - Previous Status
• Passed vibration test at ENSAPassed vibration test at ENSA (12/2003)
• Reduced 1st Buffer VolReduced 1st Buffer Vol. (10/2004)
COCO22:: 15 15 5 c.c 5 c.c.. XeXe: : 30 30 15 c.c 15 c.c..
• Box S + Box C Box S + Box C MIT:MIT: cabling/manual tests
(11/04)
• D-VesselD-Vessel: added a ss tube w/1-mm holes
(11/2004)
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Mixing VesselMixing Vessel
ModificationModificationS.S. Tube: with 1 mm
holes
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Progress of Box S – EM at MITProgress of Box S – EM at MIT
• Portable clean room: perform manual tests
• Ardé visited MIT: (02/2005)
• Visits of INFN-Rome & A. Lebedev @ MIT (03/2005)
• updated w/ flight module USCM (Lebedev)• new gas mixing software (Rome & Lebedev)• tested & evaluated software
• CO2 & Xe transfers tests: validate buffer
volume
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COCO22 Fill in Vessel D Fill in Vessel D
CO2 Fill Cycle
50
60
70
80
0 10 20 30 40 50Time (sec)
Pre
ssur
e in
Ves
el D
(p
sia)
Time Constant 7.2 ± .1 Sec
Time Constant 7.2 ± .1 Sec
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Xe Fill in Vessel DXe Fill in Vessel D
Xe Fill Cycle
650
700
750
800
850
900
950
1000
1050
1100
0.0 5.0 10.0 15.0 20.0 25.0 30.0 35.0 40.0 45.0 50.0
Time (sec)
P in V
esse
l D (psi
a)
τ = 6 ± 1 sec
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CO2 – Xe Transfer from Vessel D to CO2 – Xe Transfer from Vessel D to Box CBox C
CO2 - Xe Transfer from Vessel D
0
200
400
600
800
1000
1200
1400
1600
1800
0 1 2 3 4 5 6 7 8 9 10 11 12Time (min)
Pre
ssur
e in
Ves
sel D
(p
sia)
Time Constant2.8 ± .1 min
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EM 10-day Xe/COEM 10-day Xe/CO22 life cycle life cycle StudyStudy
• Xe/CO2 1% Flight mass – completed
Xe (13.4 mole/L): 27.5 L, 48.5 kg 300 mL, 500 g
CO2 (9.9 mole/L): 13.3 L, 5.8 kg 150 mL, 65 g
CO2
Xe
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High Pressure COHigh Pressure CO22 Fill Fill SetupSetup
Scale 2
IIIIIIII
Scale1
CO2
Store Bottle
To vacuum pump
Heat as needed
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High Pressure Xe Fill SetupHigh Pressure Xe Fill Setup
Xe
Cold Bath
IIIIIIII
Scale 1
Store Bottle
Scale 2
Cold Bath
To Vacuum Pump
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10-Day Life Cycle Study Result10-Day Life Cycle Study Result
Comparison of Xe % Measured by Partial Pressure & Spirometer
40.0
50.0
60.0
70.0
80.0
90.0
100.0
0 2 4 6 8 10 12
Number of Cycle
Xe
%
Partial Pr Meas.
Spirometer Meas.
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Current TRD ProgressCurrent TRD Progress
• EM of Box S + CEM of Box S + C Rome (electronic integ. 07/2005)
• Xe Xe && CO CO22 vessel fill procedure: vessel fill procedure: MIT/Linde
• Box C (Flight)Box C (Flight): : being fabricated (G. Rybka)
• Rest of Box S componentsRest of Box S components Arde ~08/05)
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Phase II Safety DataPhase II Safety Data• Pressure System Table:Pressure System Table: No open issues
• Other safety requests fulfilled:Other safety requests fulfilled:
• Fill/Drain of S, C & M - Fill/Drain of S, C & M - locations & procedures• Vessel fill port seal cap - Vessel fill port seal cap - design/drawing• COCO22 freezing issue – freezing issue – detailed writeup to
follow
• Radiation Hazard Report requestRadiation Hazard Report request• New monitor tube design & locationNew monitor tube design & location• FeFe5555 loading loading
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Monitor Tube Location
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Monitor Tube – New DesignMonitor Tube – New Design
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Quantity of Fe55 LoadingQuantity of Fe55 Loading
Fe55 Decay/MonitorTube
0
0.05
0.1
0.15
0.2
0.25
0.3
2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016
Time (year)
Fe55
Dec
ay R
ate
(micro
Ci)
@ Installation0.270 micro Ci
@ Launch0.162 micro Ci
End of Mission0.075 micro Ci
A
B
C