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12th B2GM • Bad Aibling • 23.07.12 • Cooling/Mockups [email protected]

Cooling & Mock-ups at DESY

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12th B2GM • Bad Aibling • 23.07.12 • Cooling/Mockups [email protected]

https://indico.desy.de/conferenceDisplay.py?ovw=True&confId=6112



[email protected] B2GM • Bad Aibling • 23.07.12 • Cooling/Mockups

Thermal Mock-up @ DESY

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Thermal Mock-up @ DESY

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XFEL Cooler




XFEL Cooler versus MARCO

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XFEL Cooler: 1330 mm x 1330 mm x 2350 mm

MARCO: 1320 mm x 1270 mm x 2300 mm

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!

"#!

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5. TECHNICAL SPECIFICATIONS XFEL COOLER

2-phase CO2 cooler XFEL Working temperature range $%! &"'()"#!Temperature stability $%! '!Maximal cooling capacity *+! ",-!Nominal cooling capacity Medium CO2 (mass flow 7.0 g/s)

$%!*+!

&"'! ! ! !",-! ./012/3!4553167!4/8/419:;! ",<!*+

! !Compressor refrigerant ! =>#>?! ! !CO2 filling volume *7! '!@!#,'!Overall dimensions 22! !Weight *7! >-#!Ambient temperature $%! &"#(<A! ! !Mains power connection BCDE! <A#!B!C!'#&F#!DE!G'&853HI!Current draw ! <!8J/KH!Power *+! >!*+!Date of production ?L7LK9!-#""!Lifespan '!:H/MK! !Cooling water pressure (in/out) N/M! ./0,!>!

Cooling water temperature $%! O!-#!

Cooling water connection ! P9/6Q/MQ!"'!22!4588HM!9LNHR!

!

R%566H49!9JH!S/9HM!4566H49156!95!S/9HM!KL883:!16!9JH!M552!S19J!/!J5KH!5M!9LNH,!

!

! !

!

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!

6. OPERATING CONTROLS AND FUNCTIONAL ELEMENTS

#$%!&'()!*++,%-!%./010!+2!3!4-/53-6!7++,/89!:8/1!38;!3!0%7+8;3-6!7++,/89!:8/1<!#$%!4-/53-6!7++,/89!:8/1!/0!3!0138;3-;!7++,/89!:8/1!=/1$!>?@?3!30!7++,/89!2,:/;<!#$%!4-/53-6!7++,/89!:8/1!7+8;%80%0!38;!7++,0!;+=8!1$%!*AB!+2!1$%!0%7+8;3-6!7++,/89!:8/1<!C8!%.4%-/5%81!1$31!8%%;0!7++,/89!738!D%!7+88%71%;!;/-%71,6!1+!1$%!0%7+8;3-6!7++,/89!:8/1<!#$%!0%7+8;3-6!7++,/89!0601%5!E%%40!1$%!7++,/89!1%54%-31:-%!7+801381!+F%-!1$%!7+54,%1%!7++,/89!0:-237%!30!/1!/0!38!%F34+-31/F%!7++,/89!0601%5<!C!-%3-!38;!2-+81!F/%=!+2!1$%!&'()!*++,%-!3-%!0$+=8!/8!'/9:-%!"<!!!

!Figure 1: Respectively the rear view and front view of the XFEL Cooler

! !

[email protected]

Marco dimensions after chiller integration

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XFEL Cooler versus MARCO

4

XFEL Cooler: 1330 mm x 1330 mm x 2350 mm

MARCO: 1320 mm x 1270 mm x 2300 mm

!

!

"#!

!

5. TECHNICAL SPECIFICATIONS XFEL COOLER

2-phase CO2 cooler XFEL Working temperature range $%! &"'()"#!Temperature stability $%! '!Maximal cooling capacity *+! ",-!Nominal cooling capacity Medium CO2 (mass flow 7.0 g/s)

$%!*+!

&"'! ! ! !",-! ./012/3!4553167!4/8/419:;! ",<!*+

! !Compressor refrigerant ! =>#>?! ! !CO2 filling volume *7! '!@!#,'!Overall dimensions 22! !Weight *7! >-#!Ambient temperature $%! &"#(<A! ! !Mains power connection BCDE! <A#!B!C!'#&F#!DE!G'&853HI!Current draw ! <!8J/KH!Power *+! >!*+!Date of production ?L7LK9!-#""!Lifespan '!:H/MK! !Cooling water pressure (in/out) N/M! ./0,!>!

Cooling water temperature $%! O!-#!

Cooling water connection ! P9/6Q/MQ!"'!22!4588HM!9LNHR!

!

R%566H49!9JH!S/9HM!4566H49156!95!S/9HM!KL883:!16!9JH!M552!S19J!/!J5KH!5M!9LNH,!

!

! !

!

!""!

!

6. OPERATING CONTROLS AND FUNCTIONAL ELEMENTS

#$%!&'()!*++,%-!%./010!+2!3!4-/53-6!7++,/89!:8/1!38;!3!0%7+8;3-6!7++,/89!:8/1<!#$%!4-/53-6!7++,/89!:8/1!/0!3!0138;3-;!7++,/89!:8/1!=/1$!>?@?3!30!7++,/89!2,:/;<!#$%!4-/53-6!7++,/89!:8/1!7+8;%80%0!38;!7++,0!;+=8!1$%!*AB!+2!1$%!0%7+8;3-6!7++,/89!:8/1<!C8!%.4%-/5%81!1$31!8%%;0!7++,/89!738!D%!7+88%71%;!;/-%71,6!1+!1$%!0%7+8;3-6!7++,/89!:8/1<!#$%!0%7+8;3-6!7++,/89!0601%5!E%%40!1$%!7++,/89!1%54%-31:-%!7+801381!+F%-!1$%!7+54,%1%!7++,/89!0:-237%!30!/1!/0!38!%F34+-31/F%!7++,/89!0601%5<!C!-%3-!38;!2-+81!F/%=!+2!1$%!&'()!*++,%-!3-%!0$+=8!/8!'/9:-%!"<!!!

!Figure 1: Respectively the rear view and front view of the XFEL Cooler

! !

[email protected]

Marco dimensions after chiller integration

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[email protected] The TRACI factory

2 have been build (Atlas & LHCb) 3 under construction (Atlas, CMS & Nikhef/AIDA for development) Investigating a start-up company for real production

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Goal: An easy to (mass) produce user friendly system • operational from +250C to -400C • cooling power up to 350 Watt

Transportable Refrigeration Apparatus for CO2 Investigation




Visit by NIKHEF experts end of June Check function of XFEL cooler- found that CO2 flow is factor 3-4 too small

Next steps- replace filter- if this does not help have to replace pump head

Status XFEL Cooler

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5. WARNING PAGE: FILTER CHECK The quality of the filter can be checked at a cooling temperature of -10°C and a sub cooling temperature -20°C while the mass flow runs via the bypass. Table 1 gives the mass flow as a function of the rotational speed of the pump when the filter must be replaced (Low limit) and the mass flow as a function of the rotational speed of the pump with a new filter (High limit). Table 1: Filter check table LOW & HIGH LIMIT

Low limit filter check High limit filter check Rotational speed (RPM) Mass Flow (g/s) Rotational speed (RPM) Mass Flow (g/s)

500 1.3 2.5 500 6.4 750 2.5 4.0 750 9.7 1000 3.9 5.6 1000 13.0 1250 5.3 7.1 1250 16.4 1500 7.0 8.6 1500 MAX ( > 17) 1750 8.6 10.2 1750 MAX ( > 17) 2000 10.3 11.7 2000 MAX ( > 17)

The mass flow limits for the filter check are given by the following equations:

Figure 6: Graph filter check equation

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Status XFEL Cooler

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500 1.3 2.5 500 6.4 750 2.5 4.0 750 9.7 1000 3.9 5.6 1000 13.0 1250 5.3 7.1 1250 16.4 1500 7.0 8.6 1500 MAX ( > 17) 1750 8.6 10.2 1750 MAX ( > 17) 2000 10.3 11.7 2000 MAX ( > 17)



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Status XFEL Cooler

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500 1.3 2.5 500 6.4 750 2.5 4.0 750 9.7 1000 3.9 5.6 1000 13.0 1250 5.3 7.1 1250 16.4 1500 7.0 8.6 1500 MAX ( > 17) 1750 8.6 10.2 1750 MAX ( > 17) 2000 10.3 11.7 2000 MAX ( > 17)



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Status XFEL Cooler

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Preparations for CO2 Systems at DESY

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Following the proposal made at dedicated MARCO meeting at MPI (March 1st) three CO2 systems are in preparation at DESY- 2 systems foreseen for Belle II (too be agreed)

- 1 test system for ATLAS/CMS phase II upgrade studiesRequired overall cooling capacity mainly determines chiller parameters - work out concept of load balancing between SVD and PXD cooling circuits‣ here we need realistic input on heat loads / losses / loop configurations (SVD & PXD)

‣ define diameter and length of cooling pipes & capillaries

CO2 part of IBBelle probably very similar to MARCO

Touchpanel

Analog/Digital I/O

S7-300PS

EthernetSwitch




Status of Thermal Mock-up

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Status of Thermal Mock-up

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Hot water chiller

Paraffin chiller

Beam pipe heating

Vacuum isolated CO2 pipes (8m)

CO2 Distributor

Beam pipe

Vacuum pump

PXD dry volume end caps




Beam pipe Mock-up

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Aluminum

Stainless Steel




Vacuum tank with over pressure protectionSimplified version of manifold- split the lines coming from CO2 system into 4

separate lines for individual cooling blocks

‣ CO2 supply line

‣ CO2 return line

‣ cold gas

CO2 Distributor

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Transferline Options

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�

CO�Manifold

� manifold to split CO� into separate lines (diameter ��mm each):forward: � for PXD, � for SVD, length �.�m

backward: � for PXD, � for SVD, length �.�m� valves foreseen to be able to steer/stop �ow on di�erent lines� transition foam isolated→ vacuum isolated� in addition, we need lines for dry nitrogen (diameter ��mm each):

forward: � for PXD, � for SVD, length �.�mbackward: � for PXD, � for SVD, length �.�m

Karl-Heinz Ackermann, Christian Kiesling, Martin Ritter Update PXD Mechanics, Status of MARCO

∆p

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8

π2· λpipe

d5ρ· M

Pros- mechanically quite flexible- integrated N2 pipe

=> number of lines can be reduced

Cons- all pipes have same

diameter- N2 and CO2 temperature

not independent

Pros- N2 and CO2 temperature

can be chosen independently

- return line has larger cross section

Cons- stiff

�

CO�Manifold

� manifold to split CO� into separate lines (diameter ��mm each):forward: � for PXD, � for SVD, length �.�m

backward: � for PXD, � for SVD, length �.�m� valves foreseen to be able to steer/stop �ow on di�erent lines� transition foam isolated→ vacuum isolated� in addition, we need lines for dry nitrogen (diameter ��mm each):

forward: � for PXD, � for SVD, length �.�mbackward: � for PXD, � for SVD, length �.�m

Karl-Heinz Ackermann, Christian Kiesling, Martin Ritter Update PXD Mechanics, Status of MARCO




What are realistic assumptions for Tcb and Tenv?How important is it to be able to independently choose TCO2 and Tgas?

Thermal Simulations

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75 µmDCD: 1.5 WDHP: 0.5 W

Tcb = -20 ºCTenv = -15 ºC

1 m/s

Tmax = 10 ºC∆TSensor = 25 ºC

Tcb = -7 ºCTenv = -20 ºC

1 m/s

Tmax = 0.5 ºC∆TSensor = 5 ºC

Carlos Marinas




Remote Vacuum Connection

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First ideas presented by K. Gadow on June 1st- several discussions with KEK vacuum experts leading to small modifications of the design

Decision to build mock-up at DESY taken on June 26th - production of parts in DESY central workshop has started- aim to have first results ~ by end of August / beginning of September




SummaryWork on thermal mock-up progressing well albeit with some delay- have to bring XFEL cooler into operation- finalize mock-up and connect to XFEL cooler to get some first experience

In parallel preparations to build CO2 cooling systems for Belle II are ongoing at DESY- soon have to agree on exact specifications

‣ CO2 part

‣ Chiller

Components for remote vacuum connection mock-up are being produced in DESY workshop- first results with mock-up expected ~ end of August / mid September

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