Note on the stability of coupled nuclear reactors

Goryachenko, V. D.

doi:10.1007/bf01182179

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2018

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“…It should be noted that, though the stability of a linearized system allows us to conclude that the original nonlinear system is "stable in the small" also, however, the linear analysis gives only a qualitative picture of the effect of a parameter on stability boundaries. So, quantitative estimates of stability boundaries obtained using the linear approximation must be experimentally verified [9].…”

Section: The "Alpha" Parametermentioning

confidence: 99%

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The physics and regularities of the neutron-thermoacoustic instability

Pelykh¹,

Zhou²,

Maksymova³

2018

Nucl. Phys. At. Energy

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The physics and regularities of the neutron-thermoacoustic instability (NTAI) in nuclear channels with subcooled nucleate boiling flows are explained. The method for obtaining the characteristic equation of NTAI in a VVER-type reactor is given. The influence of steam reactivity coefficienton NTAI boundaries is studied and the effect of a negative / k   favouring the oscillatory instability of neutron flux and pressure is shown.

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Section: The "Alpha" Parametermentioning

confidence: 99%

“…To determine instability areas, evidently stable points are marked on the complex frequency response (CFR) plane[9]. For example, the onephase mode is evidently stable.…”

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confidence: 99%