Identification of Standing Pressure Waves Sources in Primary Loops of NPP with WWER and PWR

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K.N. Proskuriakov, A.I. Fedorov, M.V. Zaporozhets, G.Y. Volkov (2016). Identification of Standing Pressure Waves Sources in Primary Loops of NPP with WWER and PWRMechanics, Materials Science & Engineering, Vol 4. doi:10.13140/RG.2.1.4562.0082

Authors: K.N. Proskuriakov, A.I. Fedorov, M.V. Zaporozhets, G.Y. Volkov

ABSTRACT. Results of measurement and calculation of Eigen frequencies of coolant pressure oscillations in primary loops of NPP are presented. The simple calculation model based on equivalence of electric circuit with elastic wave propagation in liquids and gases, which gives a sensible interpretation of standing pressure waves sources is developed. It is shown, that pressurizer manifest itself as managed Helmholtz resonator generating a number of SPW (with Eigen frequencies of steam volume, water volume and their combination with coolant volume of respiratory line).

Keywords: vibration, vibro-acoustic resonance, Helmholtz resonator, Noise Analysis, electro-acoustic analogies

DOI 10.13140/RG.2.1.4562.0082

References

[1] K.N. Proskuryakov, Mathematical Models of Sources of Thermohydraulic Disturbances in Circuits of Nuclear Power Stations, Teploenergetika, No. 6, 6–11 (1999) Therm. Eng.46(6), 439–445 (1999)]

[2] K.N. Proskuriakov, A.I. Fedorov, M.V. Zaporozhets, Predicting the Conditions under Which Vibro-acoustic Resonances with External Periodic Loads Occur in the Primary Coolant Circuits of WWER_Based NPPsISSN 0040 6015, Thermal Engineering, 2015, Vol. 62, No. 8, pp. 553–559. © Pleiades Publishing, Inc., 2015

[3] J. Runkel, D. Stegemann, J. Fiedler, P. Hrosso, S. Figedy, J. Sadilek, J. Huh’n Results of Noise Analysis in the WWER 440 – Type Nuclear Power Plant Dukovany. // SMORN VII, Avignon, France, 19-23 June 1995. NEA OECD Vol. 1, pp.81-85

[4] Husemann E., Laggiard H.P. Mies, R. Oed, J. Runkel, D. Stegemann BWR Vibration Measurement by Incore Neutron Noise Analysis SMORN VI, Gatlinburg, 199155

[5] K.N. Proskuryakov, S.P. Stoyanov, G. Nidtsballa, A Theoretical Method for Determining the Natural Oscillation Frequencies of Coolant in the Primary Coolant Circuit of a Nuclear Power Station, Trudy Mosk. Energ. Inst., No. 407, 87-93 (1979)

[6] G. Por, E. Izsak and J. Valko Some results of noise measurements in a PWR NPP. Progress in Nuclear Energy. 1985. Vol. 15, pp. 387-393 Printed in Great Britain. Pergamon Press Ltd.

[7] P.S. Kaznovskii, K.G. Kas’yanov, A.D. Emel’yanova, A.P. Kaznovskii, S.I. Ryasnyi, An analysis of modern Russian and foreign approaches to estimating the seismic stability of NPP equipment under the conditions of its operation, in Proceedings of the 8th International Scientific_Technical Conference «Safety Assurance of WWER_Based NPPs», Podolsk, May 28–31, 2013. [in Russian].

[8] M.T. (Methodical Document) 1.2.2.04.0069_2012: A Procedure for Confirming the Dynamic Characteristics of NPP Power Unit Systems and Components Important to Safety (Rosenergoatom Concern, Moscow, 2012) [in Russian]

 

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