Capillary layer structure effect upon heat transfer in flat heat pipes

Silviu Sprinceana; Ioan Mihai; Marius Beniuga; Cornel Suciu

doi:10.1117/12.2070423

20 February 2015 Capillary layer structure effect upon heat transfer in flat heat pipes

Silviu Sprinceana, Ioan Mihai, Marius Beniuga, Cornel Suciu

Proceedings Volume 9258, Advanced Topics in Optoelectronics, Microelectronics, and Nanotechnologies VII; 92581Q (2015) https://doi.org/10.1117/12.2070423
Event: Advanced Topics in Optoelectronics, Microelectronics, and Nanotechnologies 2014, 2014, Constanta, Romania

Abstract

The research presented in this paper aimed to determine the maximum heat transfer a heat pipe can achieve. To that purpose the structure of the capillary layer which can be deposited on the walls of the heat pipe was investigated. For the analysis of different materials that can produce capillarity, the present study takes into account the optimal thickness needed for this layer so that the accumulated fluid volume determines a maximum heat transfer. Two materials that could be used to create a capillary layer for the heat pipes, were investigated, one formed by sintered copper granules (the same material by which the heat pipe is formed) and a synthetic material (cellulose sponge) which has high absorbing proprieties. In order to experimentally measure and visualize the surface characteristics for the considered capillary layers, laser profilometry was employed.

Citation Download Citation

Silviu Sprinceana, Ioan Mihai, Marius Beniuga, and Cornel Suciu "Capillary layer structure effect upon heat transfer in flat heat pipes", Proc. SPIE 9258, Advanced Topics in Optoelectronics, Microelectronics, and Nanotechnologies VII, 92581Q (20 February 2015); https://doi.org/10.1117/12.2070423

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