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Atomic Energy

, Volume 127, Issue 1, pp 14–18 | Cite as

Experimental Thermophysical Studies in Validation of the Operability of Passive Safety Systems for Next-Generation VVER

  • A. V. MorozovEmail author
  • A. P. Sorokin
  • D. S. Kalyakin
  • A. R. Sakhipgareev
  • A. S. Shlepkin
Article
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The main results of experimental validation of the operability of passive core cooling systems of nextgeneration VVER are presented. It is shown that the residual heat release can be removed in 24 h on account of the operation of the second-stage water-storage system and the passive heat-removal system. As part of the validation of VVER-TOI passive safety systems the thermophysical properties of boric acid (density and viscosity) were measured experimentally with parameters characteristic for a reactor emergency. Empirical relations satisfactorily describing the experimental data are obtained.

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References

  1. 1.
    S. G. Kalyakin, A. P. Sorokin, V. A. Pivovarov, et al., “Experimental studies of thermophysical processes in support of the safety of next-generation of WWER,” At. Energ., 116, No. 4, 241–246 (2014).CrossRefGoogle Scholar
  2. 2.
    O. V. Remizov, A. V. Morozov, and A. A. Tsyganok, “An experimental study of nonequilibrium thermohydraulic processes in the passive system for flooding a VVER reactor core,” Izv. Vysh. Uchebn. Zaved. Yad. Energ., No. 4, 115–123 (2009).Google Scholar
  3. 3.
    V. M. Berkovich, G. S. Taranov, S. G. Kalyakin, et al., “Development and justification of the technology for the removal of non-condensing gases to ensure the operability of the passive heat removal system,” At. Energ., 100, No. 1, 13–19 (2006).Google Scholar
  4. 4.
    A. D. Efanov, S. G. Kalyakin, A. V. Morozov, et al., “Investigation of operation of VVER steam generator in condensation mode at the large-scale test rig,” in: Proc. 16th Int. Conf. on Nuclear Engineering ICONE16, USA (2008), pp. 793–799.Google Scholar
  5. 5.
    A. V. Morozov, O. V. Remizov, and A. A. Tsyganok, “Non-condensable gases effect on steam condensation heat transfer in horizontal tube bundle,” in: Trans. Amer. Nuc. Soc. 2010 ANS Annual Meet., USA (2010), pp. 676–677.Google Scholar
  6. 6.
    M. B. Maltsev, G. S. Taranov, A. V. Zheltoukhov, et al., “An experimental study of the joint operation of passive safety systems of the Novovoronezh NPP-2 on the large-scale stand RU-ZO,” in: 10th Int. Sci. Techn. Conf. on Safety, Economics, and Efficiency of Nuclear Energy, Moscow (2016), pp. 206–207.Google Scholar
  7. 7.
    A. V. Morozov, A. V. Pityk, S. V. Ragulin, et al., “Effect of mass transfer processes on accumulation and crystallization of boric acid in WWER core in emergency case,” J. Phys.: Conf. Ser., 899, 092010 (2017).Google Scholar
  8. 8.
    A. V. Morozov, A. P. Sorokin, A. V. Pityk, et al., “Experimental determination of the thermophysical properties of boric acid for VVER emergency conditions,” At. Energ., 125, No. 3, 159–163 (2018).Google Scholar
  9. 9.
    S. M. Balashov, E. N. Videneev, and B. I. Nigmatulin, “The effect of boric acid on the thermohydraulic characteristics of a partially drained core,” Teploenergetika, No. 9, 43–47 (1992).Google Scholar
  10. 10.
    S. A. Logvinov, Yu. A. Bezrukov, G. V. Karetnikov, et al., “A model of transport and accumulation of boric acid in a VVER-type reactor in an accident with a coolant leak,” in: Int. Conf. on Thermophysical Aspects of VVER Safety, Obninsk (1998), Vol. 1, pp. 47–57.Google Scholar
  11. 11.
    N. D. Azizov and T. S. Akhundov, “Thermal properties of aqueous solutions of boric acid at 298–573 K,” Teplofiz. Vys. Temp., 34, No. 5, 798–802 (1996).Google Scholar
  12. 12.
    Y. Hassan, S. Osturk, and S. Lee, “Rheological characterization of buffered boric acid aqueous solutions in light water reactors,” Progr. Nucl. Eng., 85, 239–253 (2015).CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2019

Authors and Affiliations

  • A. V. Morozov
    • 1
    Email author
  • A. P. Sorokin
    • 1
  • D. S. Kalyakin
    • 1
  • A. R. Sakhipgareev
    • 1
  • A. S. Shlepkin
    • 1
  1. 1.State Science Center of the Russian Federation – Leipunskii Institute for Physics and Power Engineering (IPPE)ObninskRussia

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