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Heat Transfer Research
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ISSN Print: 1064-2285
ISSN Online: 2162-6561

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Heat Transfer Research

DOI: 10.1615/HeatTransRes.2013005702
pages 137-144

EXPERIMENTAL STUDY OF MINIATURE RADIALLY ROTATING HEAT PIPES WITH WATER AS THE WORKING FLUID

Yiding Cao
Department of Mechanical and Materials Engineering, Florida International University, Miami, Florida 33174
Brian Reding
Department of Mechanical and Materials Engineering, Florida International University, Miami, Florida 33174, USA
Jian Ling
Department of Mechanical and Materials Engineering, Florida International University, Miami, Florida 33174, USA

ABSTRACT

In this study, three copper−water rotating heat pipes having inner diameters of 1.5, 2, and 3 mm, respectively, are fabricated and tested. The effectiveness of the copper−water heat pipe is first validated by comparing its performance with that of a copper cylinder having the same outer diameter. The heat pipes are then tested to prove their reliability, high effective thermal conductance, and critical working limitation. The experimental data show that the critical limitation may be reached when the inner diameter of the heat pipe is below 1.5 mm and under the condition of a low rotational speed. The tests of these water heat pipes could also explore potential applications of radially rotating heat pipes in disks and/or blades of a high-pressure compressor.


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