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Tracker Thermal Control System

AMS TTCS Status ReportAMS-TTCS Status ReportAMS TIM ti CERN J l 18th 2009AMS-TIM meeting, CERN, July 18th, 2009

ZH HeZH He

On behalf of SYSU team:

ZC Huang, SS Lu, DC Mo, XM Qi, ZP Song, XH Sun, GL TongZX. Wang, ZS Wu, Z Zhang, JP Zhou.

2009年8月31日星期一 1

Aswin is working at Aswin is working at ZhuhaiZhuhaifor TTCB QM performance testfor TTCB QM performance testTracker Thermal Control Systemfor TTCB QM performance testfor TTCB QM performance test



O tliO tliOutlineOutline

• TTCS Integration and Test SupportsTTCB QM P f T t• TTCB QM Performance Test

• Ground Support SW to be discussedGround Support SW to be discussed• Documents



TTCS I t ti d T t S tTTCS I t ti d T t S tTTCS Integration and Test SupportsTTCS Integration and Test Supports• Zhang Zhan in SERMS • Zhou Jingpeng is coming to CERN on July 25th.ou J gpe g s co g to C N o Ju y 5 .• Prof. Qi Xinmei will be present at CERN from Aug

8th t 14th f th t f i t ti f TTCB8th to 14th for the support of integration of TTCB.• Zhang Zhan and Sun Xihui will be at CERN from g

Sept.22 to Nov.11 for the support of CO2 filling.• Supports for the TVT test at ESTEC is under• Supports for the TVT test at ESTEC is under

schedule.


Incoming Inspection of TTCB QM andIncoming Inspection of TTCB QM andIncoming Inspection of TTCB QM and Incoming Inspection of TTCB QM and TTCE TTCE

2009-6-5 2009-6-26

Passed


Preliminary Test Results of TTCBPreliminary Test Results of TTCBPreliminary Test Results of TTCB Preliminary Test Results of TTCB QM Performance TestQM Performance Test

Cleaning RoomWalk-in Climate Chamber Power Power TTCS 2nd loop supplysupply

TTCBQM

TTCE TTCE QMQM EPPEPP--CANCAN

Li Li DASDAS

Linux Linux PCPC

For monitoring the system For commanding and reading


> 150 pages of test sheets



Health Guard TestHealth Guard TestHealth Guard TestHealth Guard Test• Low pump speed alarm passedLow pump speed alarm passed• Pump inlet subcooling passed(*)• Start-up heater passed• Cold orbit heater passed• Tracker alarm passed• Tracker alarm passed• Preheater overheating to be doneg• GAC overheating to be done



Performance TestsPerformance TestsPerformance TestsPerformance Tests• Pump start-up (passed)Pump start up (passed)• Pump start-up in vapor phase (passed)• Temperature control (passed)

– Set-point changep g– Stability of temperature when switching on the heat load

Press re drop at ario s p mp speeds (passed)• Pressure drop at various pump speeds (passed)– Pressure drop when two pumps are running

• Cold switch between TTCE A and TTCE B (passed)• Hot switch between TTCE A and TTCE B (to be done)• Hot switch between TTCE A and TTCE B (to be done)2009年8月31日星期一 9


Pump startPump start--up in vapor phaseup in vapor phasePump startPump start up in vapor phaseup in vapor phase

2009年8月31日星期一 10


Pump speed should not be lower than 3300RPM in cold casep p

QM modelQM model

2009年8月31日星期一 11


Pump speed should not be lower than 3300RPM in cold casep p

EM modelEM model

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Start-up heater is needed to suppress the long-last superheating during Tracker start-up

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cooling rates cooling rates (in nominal case)(in nominal case)gg ( )( )

One set of Peltier

Two sets of Peltier

B: 0.05C/minA+B:0.2C/min

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DPS signal OscillationDPS signal OscillationDPS signal OscillationDPS signal Oscillation

V 11 7kPVpp=11.7kPa

DPS-B T =-15C in two-phase flow

7500 RPM5000 RPM

2009年8月31日星期一 15

DPS B, Tacc= 15 C, in two phase flow


DPS noise is not filtered by TTCEDPS noise is not filtered by TTCEDPS noise is not filtered by TTCEDPS noise is not filtered by TTCE

2009年8月31日星期一 16

DPS noise appears DPS noise appears Tracker Thermal Control Systemwhen a pump is driving liquid COwhen a pump is driving liquid CO22

2009年8月31日星期一 17

TwoTwo--pump running mode depressespump running mode depressesDPS noiseDPS noiseTracker Thermal Control SystemDPS noiseDPS noise

Hot case2009年8月31日星期一 18

Hot case


TTCB QM Test on GoingTTCB QM Test on GoingTTCB QM Test on GoingTTCB QM Test on Going• TTCS control parameter optimizationTTCS control parameter optimization

• TS Function Checkld bi h– on cold orbit heater

– on start-up heaterp– on Peltier elements– on accumulator wire heaters

2009年8月31日星期一 19


Ground Support SW itemsGround Support SW itemsGround Support SW items Ground Support SW items • Based on the test results, we propose to add the

following items in the ground support SW:– Set low-pump-speed online warning to avoid dryout of theSet low pump speed online warning to avoid dryout of the

evaporators;– Set low-subcooling online warning defining subcoolingSet low subcooling online warning, defining subcoolingT=Tacc-Tpump_inlet; and request for the downlink band width during the change of set-point.during the change of set point.

– Filter noise of the DPSs’ signals.U t t h t ll d i t k t t• Use start-up heater manually during tracker start up.

2009年8月31日星期一 20


Documents Written since last TIMDocuments Written since last TIMDocuments Written since last TIMDocuments Written since last TIM

Titl DOC # D t Prepared Title DOC.# Date pby

TTCB QM TEST PROCEDURE IN 2ND MICRO G LOOP

TTCS-SYSU-TEST-TPR-016-1.0 2009-4-26 X.H.SunMICRO-G LOOP

TTCB LIMITED FUNCTIONAL CHECKPROCEDURE

TTCS-SYSU-TEST-TPR-017-1.0 2009-4-27 Z.Zhang

TTCS BOX QM, FM FUNCTIONAL CHECKPROCEDURE (SERMS) DURING TTCB TVTEST

TTCS-SYSU-TEST-TPR-018-1.0 2009-6-8 Z.Zhang

TTCS EM RUNNING IN HIGH AND LOW EXTREME USS TEMPERATURE CASES

TTCS-SYSU-TEST-TRP-015-1.0 2009-4-20 Jinpeng Zhou

SIMPLE WAY TO CHECK THE TTCB TTCS-SYSU-TEST-TPR-015-1.0 2009-3-6 X.H.Sun

CO2 FILLING PROCEDURE FOR TTCB TTCS SYSU GS TN 005 1 0 2009 7 6 X H S /Z H HPERFORMANCE TEST TTCS-SYSU-GS-TN-005-1.0 2009-7-6 X.H.Sun/Z.H.He


2009年8月31日星期一 22