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Shaping of the axial power density distribution in the core to minimize the vapor volume fraction at the outlet of the VVER-1200 fuel assemblies

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Abstract

The possibility of decreasing the vapor fraction at the VVER-1200 fuel assembly outlet by shaping the axial power density field is considered. The power density field was shaped by axial redistribution of the concentration of the burnable gadolinium poison in the Gd-containing fuel rods. The mathematical modeling of the VVER-1200 core was performed using the NOSTRA computer code.

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References

  1. NOSTRA Software, Vers. 5.0, Attestation Passport No. 167 (Fed. Nadzor Rossii Yad. Rad. Bezopasn., Moscow, 2003) [in Russian].

  2. Yu. M. Semchenkov, V. A. Mil’to, A. A. Pinegin, and B. E. Shumskii, At. Energy 103, 845 (2007).

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  3. Yu. M. Semchenkov, V. A. Mil’to, and B. E. Shumskii, At. Energy 105, 99 (2008).

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Authors and Affiliations

  1. National Research Nuclear University MEPhI, Kashirskoe sh. 31, Moscow, 115409, Russia

    V. I. Savander & B. E. Shumskiy

  2. National Research Center Kurchatov Institute, pl. Akademika Kurchatova 1, Moscow, 123182, Russia

    A. A. Pinegin

Authors
  1. V. I. Savander
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  2. B. E. Shumskiy
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  3. A. A. Pinegin
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Corresponding author

Correspondence to B. E. Shumskiy.

Additional information

Original Russian Text © V.I. Savander, B.E. Shumskiy, A.A. Pinegin, 2015, published in Voprosy Atomnoi Nauki i Tekhniki, Seriya: Fizika Yadernykh Reaktorov, 2015, No. 2, pp. 25–35.

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Savander, V.I., Shumskiy, B.E. & Pinegin, A.A. Shaping of the axial power density distribution in the core to minimize the vapor volume fraction at the outlet of the VVER-1200 fuel assemblies. Phys. Atom. Nuclei 79, 1279–1289 (2016). https://doi.org/10.1134/S1063778816080172

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  • DOI: https://doi.org/10.1134/S1063778816080172

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