A new fabrication method (hot-powder compaction) is developed to readily make 2-D and 3-D modulated coatings for enhanced pool-boiling performance. The modulated coatings are 2-D and 3-D stacks with different height, width, and pitch (modulation wavelength), and made with different particle diameters and porosities. The maximum measured critical heat flux ( q CHF ) of 2-D and 3-D modulated coatings are 3.3 and 2.0 times that of the surface without coatings (plain). As expected from the hydrodynamic stability theory, the experimental results for 2-D coatings are similar to 3-D coatings and show that q CHF strongly depends on the modulation wavelength, while particle diameter and porosity have a little effects. The results also suggest that a stack aspect ratio (height to pitch) larger than unity is needed for modulation enhancement of the critical heat flux.
%0 Journal Article
%1 Min20092D
%A Min, D. H.
%A Hwang, G. S.
%A Usta, Y.
%A Cora, O. N.
%A Koc, M.
%A Kaviany, M.
%D 2009
%J International Journal of Heat and Mass Transfer
%K 2009-apr-read-list boiling porous
%N 11-12
%P 2607--2613
%R 10.1016/j.ijheatmasstransfer.2008.12.018
%T 2-D and 3-D modulated porous coatings for enhanced pool boiling
%U http://dx.doi.org/10.1016/j.ijheatmasstransfer.2008.12.018
%V 52
%X A new fabrication method (hot-powder compaction) is developed to readily make 2-D and 3-D modulated coatings for enhanced pool-boiling performance. The modulated coatings are 2-D and 3-D stacks with different height, width, and pitch (modulation wavelength), and made with different particle diameters and porosities. The maximum measured critical heat flux ( q CHF ) of 2-D and 3-D modulated coatings are 3.3 and 2.0 times that of the surface without coatings (plain). As expected from the hydrodynamic stability theory, the experimental results for 2-D coatings are similar to 3-D coatings and show that q CHF strongly depends on the modulation wavelength, while particle diameter and porosity have a little effects. The results also suggest that a stack aspect ratio (height to pitch) larger than unity is needed for modulation enhancement of the critical heat flux.
@article{Min20092D,
abstract = {A new fabrication method (hot-powder compaction) is developed to readily make 2-D and 3-D modulated coatings for enhanced pool-boiling performance. The modulated coatings are 2-D and 3-D stacks with different height, width, and pitch (modulation wavelength), and made with different particle diameters and porosities. The maximum measured critical heat flux ( q CHF ) of 2-D and 3-D modulated coatings are 3.3 and 2.0 times that of the surface without coatings (plain). As expected from the hydrodynamic stability theory, the experimental results for 2-D coatings are similar to 3-D coatings and show that q CHF strongly depends on the modulation wavelength, while particle diameter and porosity have a little effects. The results also suggest that a stack aspect ratio (height to pitch) larger than unity is needed for modulation enhancement of the critical heat flux.},
added-at = {2009-06-26T20:06:47.000+0200},
author = {Min, D. H. and Hwang, G. S. and Usta, Y. and Cora, O. N. and Koc, M. and Kaviany, M.},
biburl = {https://www.bibsonomy.org/bibtex/23031d6b9e7efe5d04616d2d5664179e4/ommachi},
citeulike-article-id = {4298674},
doi = {10.1016/j.ijheatmasstransfer.2008.12.018},
interhash = {cfe20a3fa3e559d162fdcd93039ecd77},
intrahash = {3031d6b9e7efe5d04616d2d5664179e4},
issn = {00179310},
journal = {International Journal of Heat and Mass Transfer},
keywords = {2009-apr-read-list boiling porous},
month = May,
number = {11-12},
pages = {2607--2613},
posted-at = {2009-04-10 19:07:23},
priority = {2},
timestamp = {2009-06-28T16:19:20.000+0200},
title = {2-D and 3-D modulated porous coatings for enhanced pool boiling},
url = {http://dx.doi.org/10.1016/j.ijheatmasstransfer.2008.12.018},
volume = 52,
year = 2009
}