Water flow rate pulsations with a flicker power spectrum in a commercial sodium steam generator |
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| Authors: | A V Reshetnikov V P Koverda V N Skokov A I Karpenko P P Govorov A I Bel’tyukov |
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| Affiliation: | (1) Institute of Thermophysics, Ural Branch of the Russian Academy of Sciences, Russia;(2) Beloyarsk Nuclear Power Plant, Russia |
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| Abstract: | The spectral characteristics of the water flow rate pulsations in the evaporation module of a steam generator with sodium heating in the BN-600 power-generating unit at nominal power are investigated. The results show that the power spectrum of the flow rate pulsations vary inversely as the frequency (flicker pulsations). The appearance of the high-energy low-frequency pulsations of the water flow rate is attributed to a critical heat transfer regime (nonequilibrium phase transition) which is realized in the evaporation module.__________Translated from Atomnaya Énergiya, Vol. 98, No. 2, pp. 105–110, February, 2005. |
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