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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.v5.i1-4.470
pages 417-424

HEAT TANSFER PERFORMANCE OF OSCILLATING HEAT PIPE BY DIFFERENCE OF SURFACE CHARACTERISTICS

Hiroki Nagai
Tohoku University, Aramaki-Aza-Aoba 6-6-01, Aoba-ku, Sendai 980-8579, Japan
Takamu Kanayama
Tohoku University, Aramaki-Aza-Aoba 6-6-01, Aoba-ku, Sendai 980-8579, Japan
Takurou Daimaru
Tohoku University, Aramaki-Aza-Aoba 6-6-01, Aoba-ku, Sendai 980-8579, Japan

ABSTRACT

A next-generation thermal control device, called an oscillating heat pipe (OHP), has been gaining attention in recent years. Many studies have been published to improve the operation limits of OHPs and satisfy the demands for higher heat transport capability. The present study focused on changing the surface properties of the flow channel in order to improve performance. The study investigates the effect of such changes in contact on the performance of OHPs by visualizing the internal flow and empirically evaluating the behavior of the gas–liquid in response to heat input, the relationship between pressure oscillation, and the heat transport properties. The results showed the difference of surface characteristic affected the heat transfer of OHP.


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