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

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Heat transfer characteristics of Si and SiC nanofluids during a rapid quenching and nanoparticles deposition effects

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Title
Heat transfer characteristics of Si and SiC nanofluids during a rapid quenching and nanoparticles deposition effects
Author
Chun, Se-YoungBang, In CheolChoo, Yeon-JunSong, Chul-Hwa
Keywords
Boiling curve; Boiling heat transfer; Cooling curve; Cooling rates; Critical Heat Flux; Film boiling; Heat transfer characteristics; Nano-fluid; Nanofluids; SiC nanoparticles
Issue Date
201102
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
Citation
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, v.54, no.5-6, pp.1217 - 1223
Abstract
Experiments were conducted to investigate the effect of nanofluid on a boiling heat transfer during a rapid quenching of a thin platinum (Pt) wire. The typical overall boiling curves have been successfully obtained from the cooling curves of the Pt wire for the water, the silicon (Si) and the silicon carbide (SiC) nanofluids. Meaningful differences in the behavior of the boiling curves between the water and the nanofluids cannot be identified during a quenching. However, the Si nanofluids reveal a slightly higher CHF (critical heat flux) than that for the water. On the other hand, a slight deterioration of CHF is observed in the case of the SiC nanofluids. When the Si and SiC nanoparticle-coated Pt wires are quenched with water, a very high cooling rate is observed and a very different boiling curve from that of the water and the nanofluids appears. Consequently, a considerably large heat transfer coefficient is obtained in a wide range of the wall superheat in the boiling curve.
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DOI
http://dx.doi.org/10.1016/j.ijheatmasstransfer.2010.10.029
ISSN
0017-9310
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