Induced nuclear reactions: processes – systems – and elements – With control of reactor – By electronic signal processing circuitry
Patent
1988-09-01
1990-12-04
Walsh, Donald P.
Induced nuclear reactions: processes, systems, and elements
With control of reactor
By electronic signal processing circuitry
376215, 376219, 364494, G21C 736
Patent
active
049752383
ABSTRACT:
A control system for a nuclear steam power plant having a reactor, one or more once through steam generators and a turbine includes a reactor control subsystem responsive to a power demand input to cause the reactor to deliver thermal power commensurate with the power demand input to the once through steam generator, one or more feedwater control subsystems sensing the thermal power delivered by the reactor to control feedwater flow to the once through steam generator, such as via a regulating valve and/or a feed pump, to match the thermal power delivered by the once through steam generator to the turbine with the thermal power delivered by the reactor, and a turbine steam demand control subsystem responsive to the thermal power delivered by the once through steam generator by sensing steam pressure to control a governor valve to admit steam to the turbine to cause the turbine operation to match the steam supplied by the once through steam generator such that the nuclear steam power plant is plant process controlled and constantly maintained in energy balance.
REFERENCES:
patent: 4061533 (1977-12-01), Durrant
patent: 4424186 (1984-01-01), Cook
patent: 4651530 (1987-03-01), Omori
patent: 4728481 (1988-03-01), Geets
patent: 4738818 (1988-04-01), Cantineau
patent: 4777009 (1989-10-01), Singh
"Operational Flexibility of B&W PWR Control Systems for Load Follow," D. J. Delano, American Nuclear Society, Eighth Biennial Topical Conference on Reactor Operating Experience, Chattanooga, Tennessee, Aug. 8-10, 1977, pp. 1-10.
"Steam/its generation and Use" (Babcock and Wilcox), 1975; pp. 35-19 to 35-24.
"Dynamic Behavior of the B&W Nuclear Steam System", Galan et al., American Nuclear Society Annual Meeting, Toronto, Canada, Jun. 13-18, 1976, pp. 1-10.
Estrada, Jr. Herbert
Regan Jennifer A.
MPR, Inc.
Walsh Donald P.
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