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Bang, In Cheol
Nuclear Thermal-Hydraulics & Reactor Safety Lab
Research Interests
  • Nuclear Thermal-Hydraulics

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Critical heat flux for CuO nanofluid fabricated by pulsed laser ablation differentiating deposition characteristics

Cited 5 times inthomson ciCited 3 times inthomson ci
Title
Critical heat flux for CuO nanofluid fabricated by pulsed laser ablation differentiating deposition characteristics
Author
Lee, Seung WonPark, Seong DaeBang, In Cheol
Keywords
Capillary height; CHF enhancement; CuO nanofluid; CuO nanoparticles; Deposition characteristics; Deposition layers; Heated surfaces; Nanofluids; One-step methods; Pool boiling; Pure water; Rayleigh-Taylor instabilities; SEM image; Shape and size; Surface wettability; Two step method
Issue Date
201211
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
Citation
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, v.55, no.23-24, pp.6908 - 6915
Abstract
In this study, CHF characteristics in pool boiling according to CuO nanoparticles deposition characteristics are investigated compared with that of pure water. The deposition characteristics are controlled by using in-house prepared CuO nanofluids in two ways such as one-step method of pulsed laser ablation in liquid (PLAL) and two-step method of particles dispersion. Morphology of CuO nanoparticles in shape and size is analyzed by TEM while SEM images are obtained to observe the deposition structures on heated surfaces. Also, contact angle and capillary height for deposition layer on the surfaces after pool boiling experiments are measured to investigate the surface wettability. Rayleigh-Taylor instability wavelength on the surface with respect to a unified CHF enhancement mechanism is measured indirectly by a condensation method.
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DOI
http://dx.doi.org/10.1016/j.ijheatmasstransfer.2012.07.004
ISSN
0017-9310
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