VTCS overview 13 April 2006 NIKHEF Bart Verlaat 1 NIKHEF involvement in VELO ~1 m module support CO 2 cooling detector "hood" kapton cables Vacuum vessel repeater electronics LHC collision point8 « RF box » rectangul ar bellows VELO exit window Silicon modules Wake field suppress or
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VTCS overview 13 April 2006 NIKHEFBart Verlaat 1 NIKHEF involvement in VELO ~1 m module support CO 2 cooling detector "hood" kapton cables Vacuum vessel.
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VTCS overview 13 April 2006 NIKHEF Bart Verlaat 16
Components: reinforced SWEP plate condenser, modified for high pressure
High pressure Swep plate heatexchanger (50 bar) reinforced for use at 100 bar
Prototype is (almost) ready for pressure testing
VTCS overview 13 April 2006 NIKHEF Bart Verlaat 17
Components: Transfer tube
Ø4mm
Ø6mmØ14mm
Ø16mm
Ø66mm
Sub-cooled liquid feed line
2-phase return line
25mm Armaflex NH Isolation
Protective cover
Transfer line is a 55m long concentric 2-fase liquid-vapor line overcoming a 4m heightFunctions:•Transferring liquid to evaporators•Regulate liquid temperature•Pick up environmental heat in return line for unloaded evaporator cooling
•Provide low-pressure drop return flow for distant evaporator pressure control
VTCS overview 13 April 2006 NIKHEF Bart Verlaat 18
Left
Right
VELO Detector
Insulated concentric tube
TR-PT02
Insulated concentric tube
TR-PT03
50 meter
Shi
eldi
ng w
all
TR-HX28
TR-VL02
TL-PT03TL-PT08
TL-HX28
TL-VL03
TL
-HX
1
TL-HX27
TR-HX1 TR-HX27
TR-PT01
TL-FL2
TR-FL2
VTCS Right Local Control Box
VTCS Left Local Control Box
TL-VL09 TL-PT04
TL-BD03
TR-VL09TR-PT04
TR-BD03
Left Tertiary vacuum control
Right Tertiary vacuum control
Liquid in
Vapor mixture return
Liquid in
Vapor mixture return
Secondary vacuum
Primary vacuu
m
Tertiary vacuum
TR-FL1TR-VL01
TR-VL03TR-VL06
TR-VL05
TR-VL04
TL-VL06
TL-VL04
TL-VL05
TL-VL02TL-FL1TL-VL01
TR-VL08
TRL-VL01
TRL-VL02
TL-PT02TL-PT01
Test-Connection
Test-Connection
TR-VL07
TL-VL07
Secondary
Vacuum
Secondary
Vacuum
TL-BD01
TL-BD02
TR-BD01
TR-BD02
(48)
(45)
(46)
(47)
(48)
(45)
(46)
(47)
(01) = Tx-TT01(02) = Tx-TT02……(48) = Tx-TT48
Temperature sensor labeling:
Tertiary System Layout at VELO
VTCS overview 13 April 2006 NIKHEF Bart Verlaat 19
TR-AC101
TR-PM101
Tertiary VTCS Right Detector (TR)
TR-PT101TR-PT104
TR-PT102TR-VL101
TR-VL103
TR-VL104 TRL-VL105
TR-VL106
TR-VL107
TR-VL108
TR-VL109
TR-VL110
TR-VL111
TR-VL113
TR-LT101
TR-BD103
SA-HX04 / TR-HX101
SB-HX04 / TR-HX102
SA-HX06 / TR-HX103
TL-HT103
TR-HT104
SB-HX06 / TR-HX104
TR-HT101
TR-BD105
TR-VL102
TR-PT103TR-HT102
TR-BD101
TR-BD102
TR-BD104
TR-BD106
TR-BD107
TRL-VL101
TRL-PM101
TRL-VL107
TRL-VL109
TRL-VL110
TRL-VL111
Liquid to concentric tube
Vapor mixture from concentric
tube
Vapor mixture from concentric
tube
Liquid to concentric tube
TL-AC101
TL-PM101
Tertiary VTCS Left Detector (TL)
TL-PT101TL-PT104
TL-PT102TL-VL101
TL-VL103
TL-VL104TL-VL105
TL-VL106
TL-VL107
TL-VL108
TL-VL109
TL-VL110
TL-VL111
TL-VL113
TL-LT101
TL-BD103
SA-HX03 / TL-HX101
SB-HX03 / TL-HX102
SA-HX05 / TL-HX103
TL-HT103
TL-HT104
SB-HX05 / TL-HX104
TL-HT101
TL-BD105
TL-VL102
TL-PT103TL-HT102
TL-BD101
TL-BD102
TL-BD104
TL-BD106
TL-BD107
TRL-VL106
TRL-VL1108
TRL-BD105
TRL-PT103
TRL-HT102
(101)
(103) (104)
(106)(105)
(111)
(112)
(115)
(116)
(117)
(118)
(121)
(123)
(122) (114)
(113)
(120)
(107)
(102)
(119)
(110)
(108)
(109)
(101)
(103)(104)
(106) (105)
(111)
(112)
(115)
(116)
(117)
(118)
(121)
(123)
(122)(114)
(113)
(120)
(107)
(102)
(119)
(110)
(108)
(109)
Tx = TL for left detector half, TR for right detector half, TRL for combined hardware
(124) (124)
(112)
(115)
(122) (114)
(113)
TL-VL112 TR-VL112
Tertiary VTCS schematics at RB84 plant
VTCS overview 13 April 2006 NIKHEF Bart Verlaat 20
Tertiary VTCS design
Pumps
AccumulatorCondenser
s
VTCS overview 13 April 2006 NIKHEF Bart Verlaat 21
VTCS CO2 cycle in the Pressure – Enthalpy diagram
-450 -400 -350 -300 -250 -200 -1505x102
103
104
2x104
h [kJ/kg]
P [k
Pa]
-40°C
-30°C
-20°C
-10°C
0°C
10°C
0.2 0.4 0.6
Tertiary VTCS in P-H diagram
1
23
4
5
67
Accumulator pressure = detector temperature
Transfer tube heat exchange brings evaporator pre expansion per definition right above saturation
Saturation line
Capillary expansion brings evaporator blocks in saturation
Detector load
VTCS overview 13 April 2006 NIKHEF Bart Verlaat 22