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Physical mechanisms involved in grooved flat heat pipes: experimental and numerical analyses
Lips S., Lefevre F., Bonjour J.
International Journal of Thermal Sciences 50 (2011) 1243-1252 - http://hal.archives-ouvertes.fr/hal-00684132
Sciences de l'ingénieur/Mécanique/Thermique
Physique/Mécanique/Thermique
Physical mechanisms involved in grooved flat heat pipes: experimental and numerical analyses
S. Lips ()1, F. Lefevre ()2, J. Bonjour ()1
1 :  CETHIL - Centre de Thermique de Lyon
http://cethil.insa-lyon.fr
CNRS : UMR5008 – Institut National des Sciences Appliquées [INSA] – Université Claude Bernard - Lyon I
Bât. Sadi Carnot Domaine Scientifique de La Doua 69621 VILLEURBANNE CEDEX
France
2 :  SUBATECH - Laboratoire SUBATECH Nantes
http://www-subatech.in2p3.fr/
CNRS : UMR6457 – IN2P3 – Université de Nantes – École Nationale Supérieure des Mines - Nantes
4, rue Alfred Kastler - 44070 Nantes Cedex 03
France
An experimental database, obtained with flat plate heat pipes (FPHP) with longitudinal grooves is presented. The capillary pressure measured by confocal microscopy and the temperature field in the wall are presented in various experimental conditions (vapour space thickness, filing ratio, heat transfer rate, tilt angle, fluid). Coupled hydrodynamic and thermal models are developed. Experimental results are compared to results of numerical models. Physical mechanisms involved in grooved heat pipes are discussed, including the boiling limit and the effect of the interfacial shear stress. Finally, recommendations for future experimental and theoretical research to increase the knowledge on FPHP are discussed.
Anglais

International Journal of Thermal Sciences
Publisher Elsevier
ISSN 1290-0729 
internationale
Articles dans des revues avec comité de lecture
24/03/2011
50
1243-1252

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