CORE PERFORMANCE CALCULATION APPARATUS
A core performance calculation apparatus includes: a nuclear constant storage device that stores nuclear constants that have been evaluated in advance in analysis of a fuel assembly; and a three-dimensional core nuclear thermal-hydraulic characteristics analysis device that obtains core characterist...
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| Format: | Patent |
| Sprache: | eng |
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| Zusammenfassung: | A core performance calculation apparatus includes: a nuclear constant storage device that stores nuclear constants that have been evaluated in advance in analysis of a fuel assembly; and a three-dimensional core nuclear thermal-hydraulic characteristics analysis device that obtains core characteristics including a power of the fuel assembly. The nuclear constant storage device stores, as the nuclear constants, response relationships between a neutron that flows into a fuel assembly cell and fuel assembly nuclear characteristics, and response relationships between a neutron that is produced from a fuel rod and the fuel assembly nuclear characteristics. The three-dimensional core nuclear thermal-hydraulic characteristics analysis device obtains a neutron effective multiplication factor by using the response relationships that have been stored in the nuclear constant storage device, and obtains the power of the fuel assembly by using the neutron effective multiplication factor. |
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