Reactivity modulation of a boiling water reactor to stabilize th

Details Reactivity modulation of a boiling water reactor to stabilize th Reactivity modulation of a boiling water reactor to stabilize th

1991-06-24

1992-08-25

Hunt, Brooks H.

Induced nuclear reactions: processes, systems, and elements

Testing, sensing, measuring, or detecting a fission reactor...

Flux monitoring

376277, 376349, G21C 726

Patent

active

051417103

ABSTRACT:
To stabilize boiling water reactors against neutron flux oscillations caused by thermal-hydraulic instabilities, random core-wide reactivity perturbations are induced in the reactor either to suppress the onset of asymmetric (regional) mode oscillations or, in response to the detection of asymmetric mode oscillations, to stabilize the reactor in a symmetric (core-wide) oscillation mode. The reactivity perturbations are produced by effecting random changes in dome pressure, core flow or coolant enthalpy.

REFERENCES:
patent: 3799839 (1974-03-01), Fischer et al.
patent: 3802992 (1974-04-01), Griffith et al.
patent: 5015434 (1991-05-01), Wimpee et al.
S. Andersson et al. Experimental Investigations of BWR Core and Coolant Channel Flow Stability. Idaho National Engineering Lab. Stability Symposium. Aug. 10-11, 1991.

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