Photonically enhanced flow boiling in a channel coated with carbon nanotubes
Date of this Version
2-13-2012Citation
Appl. Phys. Lett. 100, 071601 (2012)
Abstract
High heat dissipation rates are enabled by multi-phase cooling schemes owing to latent heat uptake. We demonstrate enhanced flow boiling from a carbon nanotube (CNT)-coated copper surface exposed to low-intensity ultraviolet (UV)-visible excitation. Compared to non-illuminated results, the average boiling incipience temperature decreased by 4.6 degrees C and heat transfer coefficients improved by 41.5% with light exposure. These improved results are attributed to augmented hydrophilicity upon exposure to UV light and possible nanoscale opto-thermal effects, and suggest opportunities for active temperature control of temperature-sensitive devices. (C) 2012 American Institute of Physics. [doi:10.1063/1.3681594]
Discipline(s)
Nanoscience and Nanotechnology
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Comments
Copyright 2012 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in Appl. Phys. Lett. 100, 071601 (2012) and may be found at http://dx.doi.org/10.1063/1.3681594. The following article has been submitted to/accepted by Applied Physics Letters. Copyright 2012. Arun S. Kousalya, Chad N. Hunter, Shawn A. Putnam, Timothy Miller and Timothy S. Fisher. This article is distributed under a Creative Commons Attribution 3.0 Unported License.