Global Nuclear Safety
National Research Nuclear University "MEPhI"
online version: ISSN 2499-9733
print version: ISSN 2305-414Х
2018-2(27)
Operation of nuclear industry facilities
| Article Name | Development the Methods of Standing Wave Fraquency Calculation in Operating of NPP with WWER Reactor |
|---|---|
| Authors | K.N. Proskuryakov*, A.V. Anikeev, K.I. Belyaev, D.A. Pisareva |
| Address | National Research University «MPEI», |
| Abstract | The paper carries out a comparison of calculation results of acoustic standing waves frequencies with auto-spectral power densities of the sensor signals of pressure fluctuations for complex combinations of acoustic elements of the 1st contour of nuclear power plants with WWER-440. The calculation results of acoustic standing wave frequencies are found to be in satisfactory agreement with the measurement data. A new approach to the formation of combinational acoustic circuits in the coolant system in WWER-440 is presented. The oscillating circuit of the coolant including the reactor and pressure compensator connected by pipelines is investigated for the first time. It is found that the frequency of acoustic standing waves in this circuit is close to 2 Hz in the investigated modes. The possibility of this frequency shift in the area of resonant interaction with FA when changing the system layout is shown. |
| Keywords | standing waves, vibration, vibration, acoustic resonance, acoustic standing waves |
| Language | Russian |
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| Papers | 74 - 81 |
| URL Article | URL Article |
| Open Article |