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Bang, In Cheol
Nuclear Thermal-Hydraulics & Reactor Safety Lab
Research Interests
  • Nuclear Thermal-Hydraulics
  • Nuclear Safety
  • Nuclear System Design & Analysis
  • Nanofluids
  • Critical Heat Flux

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Boiling heat transfer performance and phenomena of Al2O3-water nano-fluids from a plain surface in a pool

Cited 297 times inthomson ciCited 337 times inthomson ci
Title
Boiling heat transfer performance and phenomena of Al2O3-water nano-fluids from a plain surface in a pool
Author
Bang, In CheolChang, SH
Issue Date
2005-06
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
Citation
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, v.48, no.12, pp.2407 - 2419
Abstract
Boiling heat transfer characteristics of nano-fluids with nano-particles suspended in water are studied using different volume concentrations of alumina nano-particles. Pool boiling heat transfer coefficients and phenomena of nano-fluids are compared with those of pure water, which are acquired on a smooth horizontal flat surface (roughness of a few tens nano-meters). The experimental results show that these nano-fluids have poor heat transfer performance compared to pure water in natural convection and nucleate boiling. On the other hand, CHF has been enhanced in not only horizontal but also vertical pool boiling. This is related to a change of surface characteristics by the deposition of nano-particles. In addition, comparisons between the heat transfer data and the Rhosenow correlation show that the correlation can potentially predict the performance with an appropriate modified liquid-surface combination factor and changed physical properties of the base liquid.
URI
https://scholarworks.unist.ac.kr/handle/201301/7273
URL
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=17944373694
DOI
10.1016/j.ijheatmasstransfer.2004.12.047
ISSN
0017-9310
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