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Heat Pipe Science and Technology, An International Journal

年間 4 号発行

ISSN 印刷: 2151-7975

ISSN オンライン: 2151-7991

MODELING OF TRANSFER IN THE MICROREGION IN AXIALLY GROOVED HEAT PIPES. COMPARISON OF FLUID PERFORMANCES

巻 1, 発行 1, 2010, pp. 99-112
DOI: 10.1615/HeatPipeScieTech.v1.i1.70
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要約

Axially grooved heat pipes are the devices mainly used to dissipate the heat flow arising due to latent heat of fluid phase change at the state of saturation. Part of the heat injected at the evaporator flows through a microregion where a meniscus remains hung at the top of each groove. This paper presents a 1D steady-state model constructed to study the heat and mass transfers in this zone. It allows one to show an important result concerning the respective behavior of the meniscus in the microregion and in the macroscopic one. Then, the paper compares the performances of various metal/fluid couples relative to the flux evacuated through the microregion and contact angle. Thus, the present study completes the characterization of the microregion and will directly participate in the heat pipe design improvement.

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