It is shown that addition of alumina, zinc-oxide, and diamond particles can enhance the critical heat flux (CHF) limit of water in flow boiling. The particles used here were in the nanometer range and at low concentration . The CHF tests were conducted at 0.1 MPa and at three different mass fluxes (, , and ). The thermal conditions at CHF were subcooled. The maximum CHF enhancement was 53%, 53%, and 38% for alumina, zinc oxide, and diamond, respectively, always obtained at the highest mass flux. A postmortem analysis of the boiling surface reveals that its morphology is altered by deposition of the particles during boiling. Additionally, the wettability of the surface is substantially increased, which seems to correlate well with the observed CHF enhancement.
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Micro/Nanoscale Heat Transfer—Part Ii
Experimental Study of Flow Critical Heat Flux in Alumina-Water, Zinc-Oxide-Water, and Diamond-Water Nanofluids
Sung Joong Kim,
Sung Joong Kim
Massachusetts Institute of Technology (MIT)
, 77 Massachusetts Avenue, Cambridge, MA 02139-4307
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Tom McKrell,
Tom McKrell
Massachusetts Institute of Technology (MIT)
, 77 Massachusetts Avenue, Cambridge, MA 02139-4307
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Jacopo Buongiorno,
e-mail: jacopo@mit.edu
Jacopo Buongiorno
Massachusetts Institute of Technology (MIT)
, 77 Massachusetts Avenue, Cambridge, MA 02139-4307
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Lin-Wen Hu
Lin-Wen Hu
Massachusetts Institute of Technology (MIT)
, 77 Massachusetts Avenue, Cambridge, MA 02139-4307
Search for other works by this author on:
Sung Joong Kim
Massachusetts Institute of Technology (MIT)
, 77 Massachusetts Avenue, Cambridge, MA 02139-4307
Tom McKrell
Massachusetts Institute of Technology (MIT)
, 77 Massachusetts Avenue, Cambridge, MA 02139-4307
Jacopo Buongiorno
Massachusetts Institute of Technology (MIT)
, 77 Massachusetts Avenue, Cambridge, MA 02139-4307e-mail: jacopo@mit.edu
Lin-Wen Hu
Massachusetts Institute of Technology (MIT)
, 77 Massachusetts Avenue, Cambridge, MA 02139-4307J. Heat Transfer. Apr 2009, 131(4): 043204 (7 pages)
Published Online: February 13, 2009
Article history
Received:
April 14, 2008
Revised:
July 31, 2008
Published:
February 13, 2009
Citation
Kim, S. J., McKrell, T., Buongiorno, J., and Hu, L. (February 13, 2009). "Experimental Study of Flow Critical Heat Flux in Alumina-Water, Zinc-Oxide-Water, and Diamond-Water Nanofluids." ASME. J. Heat Transfer. April 2009; 131(4): 043204. https://doi.org/10.1115/1.3072924
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