Single-step multiple repositionings of control rod cluster assembly during each nuclear reactor fuel cycle
This patent describes a method of movably repositioning a control rod cluster assembly of a nuclear reactor relative to a plurality of fuel assemblies in the nuclear reactor within a maximum displacement composed of a multiplicity of separate successive single steps. It comprises performing a single-step repositioning of a control rod cluster assembly in a nuclear reactor by moving the control rod cluster assembly through soley a single step of such displacement; and repeating the single-step repositioning at a plurality of separate times during a given fuel cycle of the reactor to perform a sequence of at least more than one of the separate single-step repositionings of the control rod cluster assembly during the given fuel cycle of the nuclear reactor, the separate times being spaced from one another by periods of time during which the control rod cluster assembly remains stationary; the single-step repositioning being repeated at most once every month during a twelve month fuel cycle.
- Assignee:
- Westinghouse Electric Corp., Pittsburgh, PA (United States)
- Patent Number(s):
- US 5066451; A
- Application Number:
- PPN: US 7-567465
- OSTI ID:
- 5418895
- Resource Relation:
- Patent File Date: 14 Aug 1990
- Country of Publication:
- United States
- Language:
- English
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