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Detrended fluctuation analysis of the neutronic power from a nuclear reactor

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  • Alvarez-Ramirez, Jose
  • Espinosa-Paredes, Gilberto
  • Vazquez, Alejandro

Abstract

We have studied neutronic power oscillations in a (BWR) nuclear reactor for three different scenarios. Two of them correspond to stable operating conditions and the third one corresponds to an emergency event where the nuclear reactor showed unstable oscillations that led to a manual scram procedure. Our results show very well-defined power-law scaling properties with long-range correlations for the first two (stable) scenarios, and breakdown of such properties during the emergency event. Some connections between the scaling properties and turbulent two-phase flow patterns in the BWR core are also discussed. Our results suggest that DFA can help in the understanding and monitoring of the dynamics of power generation in nuclear reactors.

Suggested Citation

  • Alvarez-Ramirez, Jose & Espinosa-Paredes, Gilberto & Vazquez, Alejandro, 2005. "Detrended fluctuation analysis of the neutronic power from a nuclear reactor," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 351(2), pages 227-240.
    • Handle: RePEc:eee:phsmap:v:351:y:2005:i:2:p:227-240
    DOI: 10.1016/j.physa.2004.08.087
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    References listed on IDEAS

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    1. Stanley, H.E. & Buldyrev, S.V. & Goldberger, A.L. & Goldberger, Z.D. & Havlin, S. & Mantegna, R.N. & Ossadnik, S.M. & Peng, C.-K. & Simons, M., 1994. "Statistical mechanics in biology: how ubiquitous are long-range correlations?," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 205(1), pages 214-253.
    2. Andrade, R.F.S. & Schellnhuber, H.J. & Claussen, M., 1998. "Analysis of rainfall records: possible relation to self-organized criticality," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 254(3), pages 557-568.
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    Cited by:

    1. Ribeiro, H.V. & Mendes, R.S. & Lenzi, E.K. & Belancon, M.P. & Malacarne, L.C., 2011. "On the dynamics of bubbles in boiling water," Chaos, Solitons & Fractals, Elsevier, vol. 44(1), pages 178-183.
    2. Alvarez-Ramirez, Jose & Ibarra-Valdez, Carlos & Rodriguez, Eduardo & Dagdug, Leonardo, 2008. "1/f-Noise structures in Pollocks's drip paintings," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 387(1), pages 281-295.

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