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A fractal study for nucleate pool boiling heat transfer of nanofluids

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Abstract

In this paper, a fractal model for nucleate pool boiling heat transfer of nanofluids is developed based on the fractal distribution of nanoparticles and nucleation sites on boiling surfaces. The model shows the dependences of the heat flux on nanoparticle size and the nanoparticle volume fraction of the suspension, the fractal dimension of the nanoparticle and nucleation site, temperature of nanofluids and properties of fluids. The fractal model predictions show that the natural convection stage continues relatively longer in the case of nanofluids. The addition of nanoparticles causes a decrease of the pool nucleate boiling heat transfer. The nucleate pool boiling heat transfer coefficient is decreased by increasing particle concentration. An excellent agreement between the proposed model predictions and experimental data is found. The validity of the fractal model for nucleate pool boiling heat transfer is thus verified.

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Authors and Affiliations

  1. Department of Physics and Electromechanical Engineering, Sanming University, Sanming, 365004, China

    BoQi Xiao & LingXia Chen

  2. Earthquake Engineering Research Test Center, Guangzhou University, Guangzhou, 510405, China

    GuoPing Jiang

Authors
  1. BoQi Xiao
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  2. GuoPing Jiang
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  3. LingXia Chen
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Correspondence to BoQi Xiao.

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Xiao, B., Jiang, G. & Chen, L. A fractal study for nucleate pool boiling heat transfer of nanofluids. Sci. China Phys. Mech. Astron. 53, 30–37 (2010). https://doi.org/10.1007/s11433-010-0114-1

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  • DOI: https://doi.org/10.1007/s11433-010-0114-1

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