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Investigation of the nano fluid effects on heat transfer characteristics in nuclear reactors with dual cooled annular fuel using CFD (Computational Fluid Dynamics) modeling

Author

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  • Ebrahimian, M.
  • Ansarifar, G.R.

Abstract

In this paper, thermal–hydraulic effects of nanofluid as coolant in VVER-1000 nuclear reactor with annular fuel are investigated. At the first, the core of a VVER-1000 reactor is designed based on the use of internally and externally cooled annular fuels and thermal–hydraulic parameters of the fuel rods are analyzed. From the neutronic viewpoint, Alumina is the best nanoparticle for normal operation at low concentration. In this paper, for this nanoparticle, fuel assembly is simulated in the hot channel using CFD (Computational Fluid Dynamics) simulation codes and thermal–hydraulic calculations (maximum fuel temperature, fluid outlet, MDNBR (Minimum Departure from Nucleate Boiling Ratio), etc.) are done. As one of the most important results of the analysis, using the nanoparticles, the heat transfer coefficient in outer coolant, which was already decreased using annular fuel, is increased. Also, by applying the nanoparticle with smaller size and major concentration, MDNBR is increased.

Suggested Citation

  • Ebrahimian, M. & Ansarifar, G.R., 2016. "Investigation of the nano fluid effects on heat transfer characteristics in nuclear reactors with dual cooled annular fuel using CFD (Computational Fluid Dynamics) modeling," Energy, Elsevier, vol. 98(C), pages 1-14.
    • Handle: RePEc:eee:energy:v:98:y:2016:i:c:p:1-14
    DOI: 10.1016/j.energy.2016.01.005
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    Citations

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    Cited by:

    1. Garoosi, Faroogh & Hoseininejad, Faraz & Rashidi, Mohammad Mehdi, 2016. "Numerical study of natural convection heat transfer in a heat exchanger filled with nanofluids," Energy, Elsevier, vol. 109(C), pages 664-678.
    2. Behzadnia, Hadi & Jin, Hui & Najafian, Mahyar & Hatami, Mohammad, 2021. "Geometry optimization for a rectangular corrugated tube in supercritical water reactors (SCWRs) using alumina-water nanofluid as coolant," Energy, Elsevier, vol. 221(C).
    3. Wang, Yingjie & Wang, Mingjun & Jia, Kang & Tian, Wenxi & Qiu, Suizheng & Su, Guanghui, 2022. "Thermal fatigue analysis of structures subjected to liquid metal jets at different temperatures in the Gen-IV nuclear energy system," Energy, Elsevier, vol. 256(C).
    4. Zhang, H. & Yang, H. & Chen, H.J. & Du, X. & Wen, D. & Wu, H., 2017. "Photothermal conversion characteristics of gold nanoparticles under different filter conditions," Energy, Elsevier, vol. 141(C), pages 32-39.

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