To improve design and troubleshooting techniques of piping systems for operating power plants, it is necessary to investigate, by experiment and simulation, the behavior of fluid inside the piping system in detail. This study was conducted using full-scale piping system under conditions that could seriously threaten the plant operation, by matching pressure pulsations, acoustic resonance, and piping natural frequency. Although piping vibration is reported to influence fluid pressure pulsations, there were no such examples of influence in this experiment. Knowing that the opening ratio of the pressure control valve affects the boundary condition for acoustic resonance, experiment and simulation at different opening ratios were conducted. It has been suggested that the cases in which a valve partially open at 25% or less should not be taken as a closed end. This finding conflicts with such a widespread design assumption.
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April 2017
Research-Article
Experimental and Numerical Study on Pressure Pulsations Under Various Acoustic Boundary Conditions in Piping Systems
Akira Maekawa,
Akira Maekawa
Institute of Nuclear Safety System, Inc.,
64 Sata, Mihama-cho,
Mikata-gun, Fukui 919-1205, Japan
e-mails: maekawa@inss.co.jp;
maekawa.akira@e3.kepco.co.jp
64 Sata, Mihama-cho,
Mikata-gun, Fukui 919-1205, Japan
e-mails: maekawa@inss.co.jp;
maekawa.akira@e3.kepco.co.jp
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Takashi Tsuji,
Takashi Tsuji
The Kansai Electric Power Co., Inc.,
13-8 Goichi, Mihama-cho,
Mikata-gun, Fukui 919-1141, Japan
e-mail: tsuji.takashi@e4.kepco.co.jp
13-8 Goichi, Mihama-cho,
Mikata-gun, Fukui 919-1141, Japan
e-mail: tsuji.takashi@e4.kepco.co.jp
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Michiyasu Noda,
Michiyasu Noda
The Kansai Electric Power Co., Inc.,
13-8 Goichi, Mihama-cho,
Mikata-gun, Fukui 919-1141, Japan
e-mail: noda.michiyasu@c4.kepco.co.jp
13-8 Goichi, Mihama-cho,
Mikata-gun, Fukui 919-1141, Japan
e-mail: noda.michiyasu@c4.kepco.co.jp
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Tsuneo Takahashi,
Tsuneo Takahashi
Institute of Nuclear Safety System, Inc.,
64 Sata, Mihama-cho,
Mikata-gun, Fukui 919-1205, Japan
e-mails: takahashi.tsuneo@inss.co.jp;
takahashi_tsuneo@khi.co.jp
64 Sata, Mihama-cho,
Mikata-gun, Fukui 919-1205, Japan
e-mails: takahashi.tsuneo@inss.co.jp;
takahashi_tsuneo@khi.co.jp
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Minoru Kato,
Minoru Kato
Kobelco Research Institute, Inc.,
1-5-5 Takatsukadai,
Nishi-ku, Kobe 651-2271, Japan
e-mail: kato.minoru@kki.kobelco.com
1-5-5 Takatsukadai,
Nishi-ku, Kobe 651-2271, Japan
e-mail: kato.minoru@kki.kobelco.com
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Katsuhisa Fujita
Katsuhisa Fujita
Department of Mechanical Engineering,
Osaka City University,
3-3-138 Sugimoto,
Sumiyoshi-ku, Osaka 558-8585, Japan
e-mail: fujita@mech.eng.osaka-cu.ac.jp
Osaka City University,
3-3-138 Sugimoto,
Sumiyoshi-ku, Osaka 558-8585, Japan
e-mail: fujita@mech.eng.osaka-cu.ac.jp
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Akira Maekawa
Institute of Nuclear Safety System, Inc.,
64 Sata, Mihama-cho,
Mikata-gun, Fukui 919-1205, Japan
e-mails: maekawa@inss.co.jp;
maekawa.akira@e3.kepco.co.jp
64 Sata, Mihama-cho,
Mikata-gun, Fukui 919-1205, Japan
e-mails: maekawa@inss.co.jp;
maekawa.akira@e3.kepco.co.jp
Takashi Tsuji
The Kansai Electric Power Co., Inc.,
13-8 Goichi, Mihama-cho,
Mikata-gun, Fukui 919-1141, Japan
e-mail: tsuji.takashi@e4.kepco.co.jp
13-8 Goichi, Mihama-cho,
Mikata-gun, Fukui 919-1141, Japan
e-mail: tsuji.takashi@e4.kepco.co.jp
Michiyasu Noda
The Kansai Electric Power Co., Inc.,
13-8 Goichi, Mihama-cho,
Mikata-gun, Fukui 919-1141, Japan
e-mail: noda.michiyasu@c4.kepco.co.jp
13-8 Goichi, Mihama-cho,
Mikata-gun, Fukui 919-1141, Japan
e-mail: noda.michiyasu@c4.kepco.co.jp
Tsuneo Takahashi
Institute of Nuclear Safety System, Inc.,
64 Sata, Mihama-cho,
Mikata-gun, Fukui 919-1205, Japan
e-mails: takahashi.tsuneo@inss.co.jp;
takahashi_tsuneo@khi.co.jp
64 Sata, Mihama-cho,
Mikata-gun, Fukui 919-1205, Japan
e-mails: takahashi.tsuneo@inss.co.jp;
takahashi_tsuneo@khi.co.jp
Minoru Kato
Kobelco Research Institute, Inc.,
1-5-5 Takatsukadai,
Nishi-ku, Kobe 651-2271, Japan
e-mail: kato.minoru@kki.kobelco.com
1-5-5 Takatsukadai,
Nishi-ku, Kobe 651-2271, Japan
e-mail: kato.minoru@kki.kobelco.com
Katsuhisa Fujita
Department of Mechanical Engineering,
Osaka City University,
3-3-138 Sugimoto,
Sumiyoshi-ku, Osaka 558-8585, Japan
e-mail: fujita@mech.eng.osaka-cu.ac.jp
Osaka City University,
3-3-138 Sugimoto,
Sumiyoshi-ku, Osaka 558-8585, Japan
e-mail: fujita@mech.eng.osaka-cu.ac.jp
1Corresponding author.
2Present address: The Kansai Electric Power Co., Inc., 13-8 Goichi, Mihama-cho, Mikata-gun, Fukui 919-1141, Japan.
3Present address: Kawasaki Heavy Industries, Ltd., 3-1-1, Higashikawasaki-cho, Chuo-ku, Kobe 650-8670, Japan.
Contributed by the Pressure Vessel and Piping Division of ASME for publication in the JOURNAL OF PRESSURE VESSEL TECHNOLOGY. Manuscript received May 21, 2016; final manuscript received December 24, 2016; published online February 3, 2017. Assoc. Editor: Reza Adibiasl.
J. Pressure Vessel Technol. Apr 2017, 139(2): 021703 (10 pages)
Published Online: February 3, 2017
Article history
Received:
May 21, 2016
Revised:
December 24, 2016
Citation
Maekawa, A., Tsuji, T., Noda, M., Takahashi, T., Kato, M., and Fujita, K. (February 3, 2017). "Experimental and Numerical Study on Pressure Pulsations Under Various Acoustic Boundary Conditions in Piping Systems." ASME. J. Pressure Vessel Technol. April 2017; 139(2): 021703. https://doi.org/10.1115/1.4035698
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