Detrended fluctuation analysis of the neutronic power from a nuclear reactor

被引：11

作者：

Alvarez-Ramirez, JA ^{[1
]}

Espinosa-Paredes, G ^{[1
]}

Vazquez, A ^{[1
]}

机构：

[1] Univ Autonoma Metropolitana Iztapalapa, Dept Ingn Proc & Hidraul, Mexico City 09340, DF, Mexico

来源：

PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS | 2005年 / 351卷 / 2-4期

关键词：

neutronic power; fluctuations analysis; power-law behavior;

D O I：

10.1016/j.physa.2004.08.087

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

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. (c) 2004 Elsevier B.V. All rights reserved.

引用

页码：227 / 240

页数：14

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