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Effect of nanoparticle deposition on capillary wicking that influences the critical heat flux in nanofluids
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10.1063/1.2754644
/content/aip/journal/apl/91/1/10.1063/1.2754644
http://aip.metastore.ingenta.com/content/aip/journal/apl/91/1/10.1063/1.2754644
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Figures

Image of FIG. 1.
FIG. 1.

(Color online) Relation between CHF phenomena and capillary wicking. (a) Reversible dry spot (see Ref. 13). (b) Capillary spreading of a liquid drop over thin porous layers with a small apparent contact angle. (c) Capillary rewetting flow toward a dry spot region during bubble growth on porous layers.

Image of FIG. 2.
FIG. 2.

Scanning electron micrographs of (a) bare NiCr wire and of nanoparticle-deposited wire produced during pool boiling of water-based nanofluids containing (b) , (c) , and (d) Ag nanoparticles with a concentration.

Image of FIG. 3.
FIG. 3.

(Color online) Relation between CHF and surface characteristics: (a) CHF of pure water vs the contact angle on nanoparticle-deposited surfaces. (b) Scanning electron micrographs and (c) maximum capillary wicking height of pure water on (A) and (B) nanoparticle-deposited surfaces with different CHF values at similar contact angles of approximately 20°.

Image of FIG. 4.
FIG. 4.

(Color online) Comparison between the heat flux gain due to the capillarity and the experimental CHF value on nanoparticle-fouled surfaces on which apparent contact angles of pure water are near 20°.

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/content/aip/journal/apl/91/1/10.1063/1.2754644
2007-07-06
2014-04-16
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Effect of nanoparticle deposition on capillary wicking that influences the critical heat flux in nanofluids
http://aip.metastore.ingenta.com/content/aip/journal/apl/91/1/10.1063/1.2754644
10.1063/1.2754644
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