Calo Duc
4
1 TCD – Feb. 2nd, 2009 CALODUC - Heat Pipes z=L z z=0 Evaporateur Condenseur Zone adiabatique v u r l u r il v a r il v v A l A i A Objectif : augmentation du flux de chaleur de la source chaude vers la source froide
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calo duc
Transcript of Calo Duc
1TCD – Feb. 2nd, 2009
CALODUC - Heat Pipes
z=Lzz=0
Evaporateur CondenseurZone adiabatique
vurlurilv
ar
ilvvA
lA
iA
Objectif : augmentation du flux de chaleurde la source chaude vers la source froide
2TCD – Feb. 2nd, 2009
Micro heat pipes and thermal spreaders(formerly : Heat Pipes, Thermosyphons)
Micro heat pipes (~20×20×1 mm3) Flat heat pipe (thermal spreader): ~100×100×1 mm3
1 cm
AHeat sinkHeat source
A
A-A
AHeat sinkHeat source
A
A-A
• Maximum performance calculation• Optimisation of the grooves geometry/size• Temperature field in the wall• Equivalent conductivity evaluation
CondenserAdiabatic section
Electronic component
Evaporator
z = 0 z
Heat sinkA
A
lrA - A
Hr
E
1D (micro grooves, …) or2D capillary structures (meshes, wicks, …)
CondenserAdiabatic section
Electronic component
Evaporator
z = 0 z
Heat sinkA
A
lrA - A
Hr
E
1D (micro grooves, …) or2D capillary structures (meshes, wicks, …)
A - A
Hr
E
1D (micro grooves, …) or2D capillary structures (meshes, wicks, …)
Experiments and
numerical simulations
3TCD – Feb. 2nd, 2009
Capillary structure (grooves, wick, …)+ Liquid
source chaude(electronic component, fuel cell membrane, …)
Source froide(heat removal by natural or forced convection)
VapourInternal thickness e
metal : e < 2 mmsilicon : e < 1 mm
Matériau : métal (cuivre, aluminium, …)silicium
Heat Source
Heat Sink froide
Capillary Structures 1D Capillary Structures 2D
(a) (b) (c) (d) (e) (f)
Location of heat sources / sinks
4TCD – Feb. 2nd, 2009
CALODUC - Loop Heat Pipes
“COSEE” Project: COOLING OF SEAT ELECTRONIC BOXES AND CABIN EQUIPMENTTHALES AVIONICS
AVIO INTERIORS
BRITAX
RECARO
EURO HEAT PIPE
UNIVERSITAT STUTTGART
INSA LYON
VZLU
ITP EKATERINBURG
E.U. Funding – FP6
