Induced nuclear reactions: processes – systems – and elements – With control of reactor – By electronic signal processing circuitry
Patent
1991-01-22
1992-12-29
Hunt, Brooks H.
Induced nuclear reactions: processes, systems, and elements
With control of reactor
By electronic signal processing circuitry
376217, 376278, G21C 700
Patent
active
051749467
ABSTRACT:
To detect core-wide and regional neutron flux oxcillations in a nuclear reactor core induced by thermal-hydraulic instabilities, local power range monitoring (LPRM) strings radially distributed throughout the core and having plural vertically spaced neutron flux detectors are locally assigned to individual oscillation power range monitoring (OPRM) cells radially distributed throughout the core. Groups of OPRM cells are assigned to different OPRM channels based on their geographical positions. Detector signals of the LPRM strings assigned to each OPRM cell are processed pursuant to a unique trip algorithm to detect neutron flux oscillations, and, upon meeting prescribed amplitude and frequency criteria, the assigned OPRM channel is tripped. Suppression of a thermal hydraulic instability is initiated when at least two OPRM channels assigned to geographically adjacent OPRM cells are tripped.
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patent: 4770843 (1988-09-01), Taleyarkhan
patent: 4839134 (1989-06-01), Impink, Jr. et al.
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Kumar Kiran
Watford Glen A.
General Electric Company
Hunt Brooks H.
Schroeder Robert R.
Voss Frederick H.
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