Method of and apparatus for controlling power of natural circula

Details Method of and apparatus for controlling power of natural circula Method of and apparatus for controlling power of natural circula

1988-03-02

1989-10-31

Walsh, Donald P.

Induced nuclear reactions: processes, systems, and elements

With control of reactor

By electronic signal processing circuitry

376210, B21C 700

Patent

active

048775746

ABSTRACT:
A natural circulation reactor includes a reactor pressure vessel, a cylindrical shroud disposed within the reactor pressure vessel to surround a reactor core and to extend to a position above the reactor core, and a coolant descending passage defined between the reactor pressure vessel and the shroud for allowing the coolant discharged from the top of the reactor core to be again supplied to the bottom of the reactor core. In such a natural circulation reactor, a liquid level of coolant in the coolant descending passage is adjusted on the basis of a reactor power request signal at a position below a liquid level of coolant in the shroud, and thus reactor power is controlled so that it may reach a predetermined reactor power by adjusting the liquid level of coolant in the coolant descending passage.

REFERENCES:
patent: 4290850 (1981-09-01), Omori
patent: 4302288 (1981-11-01), Youngborg
patent: 4651530 (1987-03-01), Omori
patent: 4738818 (1988-04-01), Cantineau
patent: 4777009 (1988-10-01), Singh
patent: 4808369 (1989-02-01), Yamanari

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