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Serviceability of Phase-1 RBMK-1000 FA After Service-Life Characteristics Restoration

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Atomic Energy Aims and scope

The serviceability of fuel assemblies during operation in the reactor core after restoration of the service-life characteristics of the graphite stack of phase-1 power-generation units with RBMK-1000 is evaluated. The results of FA loading and unloading operations in bent fuel channels and evaluations of the interrelation of the degree and profile of the bending of the fuel channels with a gap between the fuel elements of the outer row and inner surface of the channel tube and the conditions of FA operation in the fuel channels of the modified as well as restored geometry of the actual state of the FA recorded during inspections are presented. It is concluded that the RBMK-1000 FA are serviceable during operation before restoration of the service-life characteristics of the graphite stack as well as after restorative repairs.

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References

  1. A. A. Petrov, Yu. S. Cherepnin, A. V. Ivanov, et al, “Ensuring the serviceability of RBMK-1000 fuel assemblies during the final stage of operation of power units,” in: Abstr. 9th Int. Sci.-Techn. Conf. on Safety, Efficiency, and Economics of Nuclear Energy, Rosenergoatom, Moscow (2014), pp. 47–48.

  2. A. A. Petrov, Yu. S. Cherepnin, A. V. Ivanov, et al., “Ensuring the serviceability of RBMK-1000 fuel assemblies in power-generating units with restored service life characteristics,” in: Abstr. Sci.-Techn. Conf. on Nuclear Fuel for Next-Generation Nuclear Power Plants, TVEL, Moscow (2014), pp. 40–41.

  3. M. A. Abramov, V. I. Avdeev, E. O. Adamov, et al., Channel-Type Nuclear Power Reactor, Yu. M. Cherkashev (ed.), NIKIET, Moscow (2006).

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Authors and Affiliations

  1. Dollezhal Research and Development Institute of Power Engineering (NIKIET), Moscow, Russia

    Yu. S. Cherepnin, A. V. Slobodchikov, A. V. Ivanov, I. A. Dmitrieva, M. V. Zaporozhets & A. A. Artsybashev

Authors
  1. Yu. S. Cherepnin
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  2. A. V. Slobodchikov
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  3. A. V. Ivanov
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  4. I. A. Dmitrieva
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  5. M. V. Zaporozhets
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  6. A. A. Artsybashev
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Translated from Atomnaya Énergiya, Vol. 123, No. 5, pp. 296–300, November, 2017.

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Cherepnin, Y.S., Slobodchikov, A.V., Ivanov, A.V. et al. Serviceability of Phase-1 RBMK-1000 FA After Service-Life Characteristics Restoration. At Energy 123, 358–363 (2018). https://doi.org/10.1007/s10512-018-0353-1

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  • DOI: https://doi.org/10.1007/s10512-018-0353-1

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