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Experimental Study on Boiling Heat Transfer of α-Al2O3-Water Nanofluid

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An experimental installation for measuring boiling heat transfer is designed, and α-Al2O3-water nanofluid with different mass fractions is produced. The boiling heat transfer of α-Al2O3-water nanofluid is experimentally investigated. In this paper, the effects of different nanoparticle mass fractions and different heat fluxes on boiling heat transfer are experimentally discussed. The experimental results of water are in good agreement with the Rohsenow pool boiling correlation. It is found that the boiling heat transfer of nanofluid has an enhancement compared with pure water at a low nanoparticle mass fraction (wt% = 1%), as the mass fraction increases, the boiling heat transfer of nanofluid reduces to almost the same level as pure water at a nanoparticle mass fraction of 2% (wt% = 2%), and shows a reduction when compared with pure water at a high nanoparticle mass fraction (wt% = 3%). In addition, the correlation between heat flux and superheating and the correlation between boiling heat transfer coefficient and heat flux are investigated.
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Document Type: Research Article

Publication date: August 1, 2013

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  • Nanoscience and Nanotechnology Letters (NNL) is a multidisciplinary peer-reviewed journal consolidating nanoscale research activities in all disciplines of science, engineering and medicine into a single and unique reference source. NNL provides the means for scientists, engineers, medical experts and technocrats to publish original short research articles as communications/letters of important new scientific and technological findings, encompassing the fundamental and applied research in all disciplines of the physical sciences, engineering and medicine.
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