EXPERIMENTAL INVESTIGATION OF CONVECTIVE BOILING IN MINI-CHANNELS: COOLING APPLICATION OF THE PEM FUEL CELLS

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Mounir BOUDOUH Mohamed SI AMEUR Hasna LOUAHLIA-GUALOUS

Abstract

An experimental study of convective boiling heat transfer of water flowing in minichannels at low flow rate is carried out with pure de-ionised water and copper-water nanofluids. A low concentration of copper nanometer-sized particles was used to enhance the boiling heat transfer. The aim is to characterize the surface temperature as well as to estimate the local heat transfer coefficients by using the inverse heat conduction problem IHCP.  The inlet water temperature is fixed at 60°C and mass fluxes operated in range of 212–573 kg/m².s in minichannels of dimensions 500×2000 µm². The maximum heat flux investigated in the tests is limited to 7000 W/m². The results show that the surface temperature and the local heat transfer coefficient are dependent on the axial location and the adding of copper nanoparticles can significantly improve the heat transfer.

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How to Cite
BOUDOUH, Mounir; SI AMEUR, Mohamed; LOUAHLIA-GUALOUS, Hasna. EXPERIMENTAL INVESTIGATION OF CONVECTIVE BOILING IN MINI-CHANNELS: COOLING APPLICATION OF THE PEM FUEL CELLS. Thermal Science, [S.l.], mar. 2017. ISSN 2334-7163. Available at: <http://thermal-science.tech/journal/index.php/thsci/article/view/2081>. Date accessed: 24 june 2017. doi: https://doi.org/10.2298/TSCI140521024B.
Section
Articles
Received 2017-03-01
Accepted 2017-03-13
Published 2017-03-13

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