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Effect of ionic additive on pool boiling critical heat flux of titania/water nanofluids

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Abstract

TiO2/water nanofluids were prepared and tested to investigate the effects of an ionic additive (i.e., nitric acid in this study) on the critical heat flux (CHF) behavior in pool boiling. Experimental results showed that the ionic additive improved the dispersion stability but reduced the CHF increase in the nanofluid. The additive affected the self-assembled nanoparticle structures formed on the heater surfaces by creating a more uniform and smoother structure, thus diminishing the CHF enhancement in nanofluids.

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Acknowledgments

This work was supported by a grant from the Kyung Hee University in 2010. (KHU-20100605).

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Authors and Affiliations

  1. Marine Safety & Pollution Response Research Department, Korea Ocean Research and Development Institute, Daejeon, 305-343, Korea

    Jung-Yeul Jung

  2. Department of Nuclear Engineering, Kyung Hee University, Yongin, Gyeonggi, 446-701, Korea

    Hyungdae Kim

  3. Division of Advanced Nuclear Engineering, POSTECH, Pohang, Kyoungbuk, 790-784, Korea

    Moo Hwan Kim

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  1. Jung-Yeul Jung
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  2. Hyungdae Kim
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Correspondence to Hyungdae Kim.

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Jung, JY., Kim, H. & Kim, M.H. Effect of ionic additive on pool boiling critical heat flux of titania/water nanofluids. Heat Mass Transfer 49, 1–10 (2013). https://doi.org/10.1007/s00231-012-1055-1

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