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Heat Pipe Science and Technology, An International Journal

ISSN Print: 2151-7975
ISSN Online: 2151-7991

Archives: Volume 1, 2010 to Volume 8, 2017

Heat Pipe Science and Technology, An International Journal

DOI: 10.1615/HeatPipeScieTech.2011002703
pages 219-236

GROOVED HEAT PIPES WITH A NANOPOROUS DEPOSIT IN AN EVAPORATOR

Leonard L. Vasiliev
Porous Media Laboratory Luikov Heat and Mass Transfer Institute, National Academy of Sciences of Belarus 15, Str. P.Brovka, 220072 Minsk, Belarus
Leonid P. Grakovich
Luikov Heat and Mass Transfer Institute, National Academy of Sciences of Belarus, P. Brovka 15, 220072, Minsk, Belarus
Mikhail I. Rabetskii
Laboratory of Porous Media, A.V.Luikov Heat and Mass Transfer Institute, National Academy of Sciences, P.Brovka 15, 220072, Minsk, Belarus
Vladimir Romanenkov
Luikov Heat and Mass Transfer Institute, Brovka 15, 220072, Minsk, Belarus
Leonid L. Vasiliev, Jr.
Byelorussian Academy of Sciences; and Luikov Heat & Mass Transfer Institute, Porous Media Laboratory, P. Brovka Str. 15, 220072 Minsk, Belarus
Vincent Ayel
Département Fluide, Thermique et Combustion, Institut Prime, CNRS-ENSMA-Université de Poitiers, UPR 33461, 86961 Futuroscope Chasseneuil Cedex, France
Yves Bertin
CNRS - Institut Prime-Université de Poitiers - ENSMA UPR 3346, Département Fluides, Thermique, Combustion, 1, avenue Clément Ader BP 40109, 86961 FUTUROSCOPE CHASSENEUIL Cedex France
Cyril Romestant
CNRS - Institut Prime-Université de Poitiers - ENSMA UPR 3346, Département Fluides, Thermique, Combustion, 1, avenue Clément Ader BP 40109, 86961 FUTUROSCOPE CHASSENEUIL Cedex France; Universita di Bergamo, Dipartimento di Ingegneria Industriale, Viale Marconi 5, 24044 Dalmine, Bergamo, Italy
Julien Hugon
Platforms and Satellites Group, Research Department, Thales Alenia Space, BP 99 06322 Cannes La Bocca, France

ABSTRACT

This paper is devoted to the research and development of the advanced nanotechnology design of grooved heat pipes (GHPs) with a thin porous layer (TPL) on their inner surface. Nanotechnologies have a strong impact on the hydrodynamic and heat transfers found in some heat- and power-generating devices. As an object for the investigations, high thermal performance GHPs, manufactured by Thales Alenia Space (France), have been chosen for this study. The coating was designed to improve the cooling capability of GHPs with trapezoid grooves. The tested samples are ammonia/aluminum heat pipes. The GHPs are 1 m long with an external diameter of 12.2 mm. The main goal was to validate through tests the thermal behavior of the GHPs with and without a porous coating on the heat pipe groove surface. It was found that a porous coating on the evaporator significantly contributes to improved GHP thermal performance; on the condenser, however, it has the opposite effect.


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