NONLINEAR TREATMENT OF LARGE PERTURBATION IN POWER REACTOR STABILITY

Journal Article · Sat Aug 01 04:00:00 EDT 1959 · Nuclear Sci. and Eng.

OSTI ID:4209102

Sandmeier, H A

For large perturbations the usual assuinption in power reactor stability that the flux variations delta n are small in comparison with the steady-state flux level M is not valid. Due to the product term of excess reactivity and neutron flux, harmonics are generated tn the flux. The stability under such conditions can be discussed by extracting the fundamental flux component amd obtaining a quasi frequency response as the ratio of fundamental incremental flux component to excess rcactivity as a function of frequeney and amplitude of perturbation. This approach is applied to two Argonne power reactors, the Experimental Boiling Water Reactor and the Experimental Breeder Reactor, where experimental frequency responses have been obtained and a peak has been observed. It is found that for both reactors the stability decreases as the amplitude of perturbation increases. (auth)

• Research Organization: Argonne National Lab., Lemont, Ill.
• NSA Number: NSA-13-019748
• OSTI ID: 4209102
• Journal Information: Nuclear Sci. and Eng., Journal Name: Nuclear Sci. and Eng. Vol. Vol: 6
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

BOILING-- POWER PLANTS-- REACTORS-- STABILITY-- WATER
BREEDING-- POWER PLANTS-- REACTORS-- STABILITY
FREQUENCY-- NEUTRON FLUX-- POWER PLANTS-- REACTIVITY-- REACTORS-- STABILITY-- TRANSIENTS-- VARIATIONS
REACTORS