Irreversible circulation of fluctuation in coupled-core nuclear reactors.

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概要

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• The irreversible circulation of fluctuation a for a coupled-core nuclear reactors is derived. Neutrons in this system are transported from a certain core to another one with a finite time lag and their fluctuations are generally described by a set of non-Markoffian Langevin equations.<BR>This system cannot accept Tomita's original theory based on the Markoffian stochastic process. When the system has the exp(-t/τ)-type memory kernel, we can, however, build up an equivalent Markoffian model-4-points model-by introducing "transit zones", and we can evaluate the irreversible circulation of fluctuation α. The a for symmetrically coupled-cores takes null-value, while for an asymmetrical case the α becomes finite and turns out to be a new information from which the coupling parameters between the cores can be extracted.

• 一般社団法人 日本原子力学会の論文

著者

• Saito Keiichi

  Faculty Of Engineering Hokkaido University

• KONNO Hidetoshi

  Faculty of Engineering, Hokkaido University

• Konno Hidetoshi

  Faculty Of Engineering Hokkaido University

関連論文

• Stochastic Processes Having Fractional Order Nonlinearity Associated with Hyper Gamma Distribution (General)
• Derivation of a Generalized Fokker-Planck Equation for a Non-Markoffian System with the Time Reversal Asymmetry
• Irreversible circulation of fluctuation in coupled-core nuclear reactors.

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