Subcooled pool boiling heat transfer in fractal nanofluids：A novel analytical model

doi:10.1088/1674-1056/23/2/026601

Abstract A novel analytical model to determine the heat flux of subcooled pool boiling in fractal nanofluids is developed. The model considers the fractal character of nanofluids in terms of the fractal dimension of nanoparticles and the fractal dimension of active cavities on the heated surfaces; it also takes into account the effect of the Brownian motion of nanoparticles, which has no empirical constant but has parameters with physical meanings. The proposed model is expressed as a function of the subcooling of fluids and the wall superheat. The fractal analytical model is verified by a reasonable agreement with the experimental data and the results obtained from existing models.

Keywords: subcooled pool boiling Brownian motion fractal nanofluids

Received: 20 May 2013
Revised: 03 July 2013
Accepted manuscript online:

PACS:	66.25.+g	(Thermal conduction in nonmetallic liquids)
	05.45.Df	(Fractals)
	44.05.+e	(Analytical and numerical techniques)

Fund: Project supported by the National Natural Science Foundation of China (Grant No. 11102100), the Natural Science Foundation of Fujian Province, China (Grant No. 2012J01017), and the Scientific Research Special Foundation for Provincial University of Education Department of Fujian Province, China (Grant No. JK2011056).

Corresponding Authors: Xiao Bo-Qi
E-mail: mr.boqi-xiao@connect.polyu.hk

About author: 66.25.+g; 05.45.Df; 44.05.+e

Cite this article:

Xiao Bo-Qi (肖波齐), Yang Yi (杨毅), Xu Xiao-Fu (许晓赋) Subcooled pool boiling heat transfer in fractal nanofluids：A novel analytical model 2014 Chin. Phys. B 23 026601

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Subcooled pool boiling heat transfer in fractal nanofluids：A novel analytical model

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