gigatracker supporting plate cooling system simulation 1vittore carassiti - infn fecern, 11/12/2007
TRANSCRIPT
Vittore Carassiti - INFN FE 1
GIGATRACKER
SUPPORTING PLATECOOLING SYSTEM SIMULATION
CERN , 11/12/2007
2
BOUNDARY CONDITIONS
• SUPPORTING PLATE THICKNESS SPT = 0,1 mm
• SURFACE COLLECTING THE POWER SCP = 27 x60 mm^2
• HEAT FLUX HF = 2 W/cm^2 = 2E+04 W/m^2
• COOLING SYSTEM SURROUNDING THE RECTANGULAR EDGE OF THE SURFACE COLLECTING THE POWER
Vittore Carassiti - INFN FECERN , 11/12/2007
Cooling system
Supporting plate
Heat flux
Vittore Carassiti - INFN FE 3
MESH
• 1° ANALISYS : ELEMENT LENGTH = 6 mm
• 2° ANALISYS : ELEMENT LENGTH = 4 mm
• 3° ANALISYS : ELEMENT LENGTH = 2 mm
COMPARED ANALISYS
CERN , 11/12/2007
Vittore Carassiti - INFN FE 4
K-1100 CARBON FIBER - DATA SHEET
LONGITUDINAL THERMAL CONDUCTIVITY (W/mK) 1000
TRANSVERSE THERMAL CONDUCTIVITY (W/mK) 2,4
ELECTRICAL RESISTIVITY (micro-ohm/m) 1,3
FIBER DIAMETER (microns) 10
DENSITY (Kg/m^3) 2200
LONGITUDINAL MODULUS (Gpa) 931
TRANSVERSE MODULUS (Gpa) 0,7
LONGITUDINAL POISSON’S 0,3
TRANSVERSE POISSON’S 0,85
LONGOTUDINAL CTE @ 21°C (C^-1) -1,5E-06
TRANSVERSE CTE @ 21°C (C^-1) 12E-06
LONGITUDINAL STRENGTH (Gpa) 3,10
SHEAR STRENGTH (Mpa) 21
CERN , 11/12/2007
Vittore Carassiti - INFN FE 5
K1100 CARBON FIBER SUPPORTING PLATECONFIGURATION 1 – TEMPERATURE DISTRIBUTION
MAX THERMAL CONDUCTIVITY
CERN , 11/12/2007
Vittore Carassiti - INFN FE 6
K1100 CARBON FIBER SUPPORTING PLATECONFIGURATION 2 – TEMPERATURE DISTRIBUTION
MAX
TH
ERM
AL C
ON
DU
CTIV
ITY
CERN , 11/12/2007
Vittore Carassiti - INFN FE 7
K1100 CARBON FIBER SUPPORTING PLATECONFIGURATION 3 – TEMPERATURE DISTRIBUTION
MAX
TH
ERM
AL C
ON
DU
CTIV
ITY
MAX THERMAL CONDUCTIVITY
CERN , 11/12/2007
Vittore Carassiti - INFN FE 8
100200
300400
500600
700800
9001000
11001200
13001400
15001600
17001800
-200
-150
-100
-50
0
50
100
150
200
-166
-80
-52-38
-29 -23 -19 -16 -14 -18-11 -9 -8 -7 -6 -6 -5 -5
171.0
85.0
57.043.0
34.0 28.0 24.0 21.0 19.0 23.015.5 14.2 13.0 12.2 11.4 10.7 10.1 9.5
MAX PLATE TEMPERATURE = 5 °C : COOLING TEMPERATURE VS THERMAL CONDUCTIVITY
cooling Temperature CT (°C) Max Plate Temperature MT = 5 °C dT = MT - CT (°C)
thermal conductivity (W/mK)
T (°C
)
CA
RB
ON
CO
PP
ER
K-8
00X
CA
RB
ON
FIB
ER
K-1
100
CA
RB
ON
FIB
ER
DIA
MO
ND
ORTHOTROPIC MATERIAL
GO
LD
SILI
CON
ALU
MIN
UM
ISOTROPIC MATERIAL BEHAVIOUR
CERN , 11/12/2007
Vittore Carassiti - INFN FE 9
K1100 CARBON FIBER SUPPORTING PLATE
THERMAL LOAD IMPACT VS
STRESS – STRAIN DISTRIBUTION
CERN , 11/12/2007
Vittore Carassiti - INFN FE 10
K1100 CARBON FIBER SUPPORTING PLATE DISPLACEMENT (m)4 CORNERS CLAMPED @ TEMPERATURE DISTRIBUTION = CONFIGURATION 2
CERN , 11/12/2007
Vittore Carassiti - INFN FE 11
K1100 CARBON FIBER SUPPORTING PLATE DISPLACEMENT (m)2 CORNERS CLAMPED AND 2 CORNERS SLIDING @ TEMPERATURE DISTRIBUTION = CONFIGURATION 2
CERN , 11/12/2007
Vittore Carassiti - INFN FE 12
K1100 CARBON FIBER SUPPORTING PLATE DISPLACEMENT (m)VERTICAL EDGES CLAMPED @ TEMPERATURE DISTRIBUTION = CONFIGURATION 2
CERN , 11/12/2007
Vittore Carassiti - INFN FE 13
K1100 CARBON FIBER SUPPORTING PLATE DISPLACEMENT (m)HORIZONTAL EDGES CLAMPED @ TEMPERATURE DISTRIBUTION = CONFIGURATION 2
CERN , 11/12/2007
Vittore Carassiti - INFN FE 14
K1100 CARBON FIBER SUPPORTING PLATE DISPLACEMENT (m)HORIZONTAL EDGES CENTER CLAMPED @ TEMPERATURE DISTRIBUTION = CONFIGURATION 2
CERN , 11/12/2007
Vittore Carassiti - INFN FE 15
CONFIGURATION MAX DISPLACEMENT (m) MAX STRESS (Pa)
4 CORNES CLAMPED 4,18E-06 7E+07
2 CORNERS CLAMPED2 CORNERS SLIDING
1,64E-05 5,84E+07
VERTICAL EDGES CLAMPED 1,79E-03 3,23E+07
HORIZONTAL EDGES CLAMPED 1,43E-04 3,86E+07
HORIZONTAL EDGESCENTER CLAMPED
7,55E-06 7E+07
STRESS – STRAIN COMPARISON TABLE
CERN , 11/12/2007