Vibration experiments for pressure pulsation behavior were made using actual size mock-up piping of nuclear power facilities. The mock-up was a closed loop consisting of a three-strand plunger pump, tanks, piping and valves. It was 40 m long to allow interaction of the acoustic resonance frequency of fluid inside with the mechanical natural frequency of the piping. The influence of valve closing and opening operations to change inner pressure during pump operations on the pulsation boundary condition was investigated in this study. A drastic change in the boundary condition of the acoustic resonance behavior by using a slightly different valve opening ratio to set a different inner pressure was shown in the experimental results. The phenomenon was numerically simulated by using the method of characteristics. The simulation results showed that the boundary condition of the acoustic resonance changed from the closing-opening condition to the closing-closing condition when the valve opening ratio was changed slightly from 10% to 15%. This indicated that the boundary condition of the acoustic resonance had a pulsed change. Therefore, the boundary condition of the acoustic resonance was sensitive to a slight change of the valve opening ratio.
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ASME 2010 3rd Joint US-European Fluids Engineering Summer Meeting collocated with 8th International Conference on Nanochannels, Microchannels, and Minichannels
August 1–5, 2010
Montreal, Quebec, Canada
Conference Sponsors:
- Fluids Engineering Division
ISBN:
978-0-7918-5451-8
PROCEEDINGS PAPER
Vibration Experiments and Numerical Simulations of Pulsation Behavior in Actual Size Mock-Up Piping Available to Purchase
Akira Maekawa,
Akira Maekawa
Institute of Nuclear Safety System, Inc., Mihama, Fukui, Japan
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Tsuneo Takahashi,
Tsuneo Takahashi
Institute of Nuclear Safety System, Inc., Mihama, Fukui, Japan
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Takashi Tsuji,
Takashi Tsuji
Institute of Nuclear Safety System, Inc., Mihama, Fukui, Japan
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Michiyasu Noda,
Michiyasu Noda
Kansai Electric Power Co., Inc., Mihama, Fukui, Japan
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Minoru Kato,
Minoru Kato
Kobelco Research Institute, Inc., Kobe, Japan
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Katsuhisa Fujita
Katsuhisa Fujita
Osaka City University, Osaka, Japan
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Akira Maekawa
Institute of Nuclear Safety System, Inc., Mihama, Fukui, Japan
Tsuneo Takahashi
Institute of Nuclear Safety System, Inc., Mihama, Fukui, Japan
Takashi Tsuji
Institute of Nuclear Safety System, Inc., Mihama, Fukui, Japan
Michiyasu Noda
Kansai Electric Power Co., Inc., Mihama, Fukui, Japan
Minoru Kato
Kobelco Research Institute, Inc., Kobe, Japan
Katsuhisa Fujita
Osaka City University, Osaka, Japan
Paper No:
FEDSM-ICNMM2010-30280, pp. 913-920; 8 pages
Published Online:
March 1, 2011
Citation
Maekawa, A, Takahashi, T, Tsuji, T, Noda, M, Kato, M, & Fujita, K. "Vibration Experiments and Numerical Simulations of Pulsation Behavior in Actual Size Mock-Up Piping." Proceedings of the ASME 2010 3rd Joint US-European Fluids Engineering Summer Meeting collocated with 8th International Conference on Nanochannels, Microchannels, and Minichannels. ASME 2010 7th International Symposium on Fluid-Structure Interactions, Flow-Sound Interactions, and Flow-Induced Vibration and Noise: Volume 3, Parts A and B. Montreal, Quebec, Canada. August 1–5, 2010. pp. 913-920. ASME. https://doi.org/10.1115/FEDSM-ICNMM2010-30280
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