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Enhancement of flow boiling heat transfer in microchannels by nano- and micro-surface treatments

Published online by Cambridge University Press:  20 July 2011

Hai Trieu Phan ,
Nadia Caney ,
Philippe Marty ,
Stéphane Colasson  and
Jérôme Gavillet
Hai Trieu Phan*
Affiliation:
UniversitéJoseph Fourier, LEGI, BP 53, 38041 Grenoble Cedex 9, France LITEN/LETH, CEA Grenoble, 17 rue des martyrs, 38054 Grenoble Cedex 9, France
Nadia Caney
Affiliation:
UniversitéJoseph Fourier, LEGI, BP 53, 38041 Grenoble Cedex 9, France
Philippe Marty
Affiliation:
UniversitéJoseph Fourier, LEGI, BP 53, 38041 Grenoble Cedex 9, France
Stéphane Colasson
Affiliation:
LITEN/LETH, CEA Grenoble, 17 rue des martyrs, 38054 Grenoble Cedex 9, France
Jérôme Gavillet
Affiliation:
LITEN/LTS, CEA Grenoble, 17 rue des martyrs, 38054 Grenoble Cedex 9, France
*
a Corresponding author: haitrieu.phan@laplace.univ-tlse.fr
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Abstract

This paper investigates the flow boiling heat transfer in microchannels with the aim of developing compact cooling systems which can be adapted to miniaturized power components. Nano- and micro-surface treatments were used as innovative techniques to improve the heat transfer performance as well as to delay the intermittent dryout. It was observed that the micro-structured surfaces show significant enhancements (up to 85%) in heat transfer compared to the smooth surfaces. Especially, using the highly-wetted structured surface, the intermittent dryout is improved.

Keywords

Contact angleconvective boilingmicrochannelmicro-patterningnanocoatingAngle de contactébullition convectivemicrocanalmicro-stucturationnano-structuration
Type
Research Article
Information
Mechanics & Industry , Volume 12 , Issue 3: CFM 2011 , 2011 , pp. 151 - 155
Copyright
© AFM, EDP Sciences 2011

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References

Références

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