Category Archives: Nuclear Reactor Design

Lattice Calculation

[1] Purpose of lattice calculation Even using a high performance computer, a direct core calculation with several tens of thousands of fuel pins is difficult to perform in its heterogeneous geometry model form, using fine-groups (e. g., 107 groups in SRAC) of a prepared reactor constant library. The Monte Carlo method can handle such a core calculation, but it is […]

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Stability against perturbations

Nuclear reactors and their related systems have to be operated stably against various perturbations. Fluctuations in reactor power due to fluid flow characteristics and reactivity feedback, or some factors related to characteristics of reactor control systems can obstruct stable operation of the reactors. Returning to the original stable state is essential against those perturbations. As kinds of stability required in […]

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