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Proceedings Papers

Suppression Methods of Acoustic Noise Generated in Main Steam Stop Valve

Shiro Takahashi, Eiji Ozaki, Atsuyuki Minenaga
Proc. ASME. ICONE26, Volume 6B: Thermal-Hydraulics and Safety Analyses, V06BT08A063, July 22–26, 2018
Publisher: American Society of Mechanical Engineers
Paper No: ICONE26-82515
https://doi.org/10.1115/ICONE26-82515
View Paper titled, Suppression Methods of Acoustic Noise Generated in Main Steam Stop Valve
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Topics: Acoustics, Noise (Sound), Steam, Valves, Flow (Dynamics), Resonance, Computational fluid dynamics, Pressure, Vortices, Emergencies
Proceedings Papers

Evaluation of Jet Impact Region and Fluid Force Generated From Ruptured Pipes: Part 4 — Numerical Evaluation of Affected Region by Flashing Jet Flow

Ryo Morita, Shun Watanabe, Shiro Takahashi, Noriyuki Takamura
Proc. ASME. ICONE26, Volume 6B: Thermal-Hydraulics and Safety Analyses, V06BT08A027, July 22–26, 2018
Publisher: American Society of Mechanical Engineers
Paper No: ICONE26-82063
https://doi.org/10.1115/ICONE26-82063
View Paper titled, Evaluation of Jet Impact Region and Fluid Force Generated From Ruptured Pipes: Part 4 — Numerical Evaluation of Affected Region by Flashing Jet Flow
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Topics: Flashing, Fluids, Jets, Pipes, Computational fluid dynamics, Safety, Steam, Damage, Design, Evaluation methods
Journal Articles

A Numerical Analysis Method of Impurity Precipitation on Mesh Wire of Cold Trap in Fast Breeder Reactor

Akinori Tamura, Shiro Takahashi, Hiroyuki Nakata, Akio Takota
Journal: Journal of Nuclear Engineering and Radiation Science
Publisher: ASME
Article Type: Research-Article
ASME J of Nuclear Rad Sci. July 2018, 4(3): 031015.
Paper No: NERS-17-1262
https://doi.org/10.1115/1.4039037
Published Online: May 16, 2018
View Article titled, A Numerical Analysis Method of Impurity Precipitation on Mesh Wire of Cold Trap in Fast Breeder Reactor
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Topics: Flow (Dynamics), Numerical analysis, Precipitation, Reynolds number, Simulation, Wire, Breeder reactors, Computer simulation, Pressure, Sodium
Proceedings Papers

Considerations in Steam Piping Design for Prevention of an Acoustic Resonance at a Closed Side Branch

Ryo Morita, Yuta Uchiyama, Fumio Inada, Shiro Takahashi
Proc. ASME. PVP2017, Volume 4: Fluid-Structure Interaction, V004T04A031, July 16–20, 2017
Publisher: American Society of Mechanical Engineers
Paper No: PVP2017-65244
https://doi.org/10.1115/PVP2017-65244
View Paper titled, Considerations in Steam Piping Design for Prevention of an Acoustic Resonance at a Closed Side Branch
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Topics: Acoustics, Piping design, Resonance, Steam, Flow (Dynamics), Boiling water reactors, Pipes, Drops, Liquid films, Computational fluid dynamics
Proceedings Papers

Development of Evaluation Method for Cold Trap in Fast Breeder Reactor: Part 2 — Analytical Evaluation of Impurity Capturing Capacity in Cold Trap

Shiro Takahashi, Akinori Tamura, Hiroyuki Nakata, Akio Takota
Proc. ASME. ICONE25, Volume 6: Thermal-Hydraulics, V006T08A109, July 2–6, 2017
Publisher: American Society of Mechanical Engineers
Paper No: ICONE25-67699
https://doi.org/10.1115/ICONE25-67699
View Paper titled, Development of Evaluation Method for Cold Trap in Fast Breeder Reactor: Part 2 — Analytical Evaluation of Impurity Capturing Capacity in Cold Trap
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Topics: Breeder reactors, Evaluation methods, Hydrogen, Sodium, Computational fluid dynamics, Oxygen, Sodium compounds, Wire, Packing (Shipments), Packings (Cushioning)
Proceedings Papers

Development of Evaluation Method for Cold Trap in Fast Breeder Reactor: Part 1 — Numerical Analysis of Impurity Precipitation on Mesh Wire

Akinori Tamura, Shiro Takahashi, Hiroyuki Nakata, Akio Takota
Proc. ASME. ICONE25, Volume 6: Thermal-Hydraulics, V006T08A110, July 2–6, 2017
Publisher: American Society of Mechanical Engineers
Paper No: ICONE25-67702
https://doi.org/10.1115/ICONE25-67702
View Paper titled, Development of Evaluation Method for Cold Trap in Fast Breeder Reactor: Part 1 — Numerical Analysis of Impurity Precipitation on Mesh Wire
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Topics: Breeder reactors, Evaluation methods, Numerical analysis, Precipitation, Wire, Sodium, Sodium compounds, Lattice Boltzmann methods, Reynolds number, Hydrogen
Proceedings Papers

Evaluation of Jet Impact Region and Fluid Force Generated From Ruptured Pipes: 1 — Numerical and Experimental Evaluation of Affected Region by Steam Jet

Ryo Morita, Yuta Uchiyama, Shun Watanabe, Shiro Takahashi, Qiang Xu, Noriyuki Takamura
Proc. ASME. ICONE24, Volume 3: Thermal-Hydraulics, V003T09A019, June 26–30, 2016
Publisher: American Society of Mechanical Engineers
Paper No: ICONE24-60341
https://doi.org/10.1115/ICONE24-60341
View Paper titled, Evaluation of Jet Impact Region and Fluid Force Generated From Ruptured Pipes: 1 — Numerical and Experimental Evaluation of Affected Region by Steam Jet
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Topics: Fluids, Pipes, Steam, Computational fluid dynamics, Safety, Damage, Design, Evaluation methods, Nuclear power stations, Particulate matter
Proceedings Papers

Evaluation of Jet Impact Region and Fluid Force Generated From Ruptured Pipes: 2 — Evaluation of Fluid Force Using Computational Fluid Dynamics Analysis

Shiro Takahashi, Qiang Xu, Noriyuki Takamura, Ryo Morita, Yuta Uchiyama, Shun Watanabe
Proc. ASME. ICONE24, Volume 3: Thermal-Hydraulics, V003T09A015, June 26–30, 2016
Publisher: American Society of Mechanical Engineers
Paper No: ICONE24-60316
https://doi.org/10.1115/ICONE24-60316
View Paper titled, Evaluation of Jet Impact Region and Fluid Force Generated From Ruptured Pipes: 2 — Evaluation of Fluid Force Using Computational Fluid Dynamics Analysis
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Topics: Computational fluid dynamics, Fluids, Pipes, Steam, Jets, Damage, Design, Evaluation methods, Nozzles, Nuclear power stations
Proceedings Papers

Evaluation of Jet Impact Region and Fluid Force Generated From Ruptured Pipes: 3 — Evaluation of Established Standards

Qiang Xu, Shiro Takahashi, Noriyuki Takamura, Ryo Morita, Yuta Uchiyama, Shun Watanabe
Proc. ASME. ICONE24, Volume 3: Thermal-Hydraulics, V003T09A016, June 26–30, 2016
Publisher: American Society of Mechanical Engineers
Paper No: ICONE24-60317
https://doi.org/10.1115/ICONE24-60317
View Paper titled, Evaluation of Jet Impact Region and Fluid Force Generated From Ruptured Pipes: 3 — Evaluation of Established Standards
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Topics: Fluids, Pipes, Computational fluid dynamics, Steam, Damage, Design, Engineering standards, Evaluation methods, Nuclear power stations, Particulate matter
Proceedings Papers

Design and Maintenance in an IAEA Technical Guidelines on Fluid-Structure Interaction

Fumio Inada, Tomomichi Nakamura, Takashi Nishihara, Shigehiko Kaneko, Manwoong Kim, Robert A. Ainsworth, Shiro Takahashi
Proc. ASME. PVP2014, Volume 4: Fluid-Structure Interaction, V004T04A085, July 20–24, 2014
Publisher: American Society of Mechanical Engineers
Paper No: PVP2014-28389
https://doi.org/10.1115/PVP2014-28389
View Paper titled, Design and Maintenance in an IAEA Technical Guidelines on Fluid-Structure Interaction
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Topics: Design, Fluid structure interaction, Maintenance, Damage, Deformation, Flow-induced vibrations, Fracture (Materials), Fracture (Process), Nuclear power, Nuclear power plant maintenance
Proceedings Papers

Nuclear Power Plants Issues in IAEA Technical Guidelines on Fluid-Structure Interactions

Shiro Takahashi, Kunio Hasegawa, Tomomichi Nakamura
Proc. ASME. PVP2014, Volume 4: Fluid-Structure Interaction, V004T04A086, July 20–24, 2014
Publisher: American Society of Mechanical Engineers
Paper No: PVP2014-28476
https://doi.org/10.1115/PVP2014-28476
View Paper titled, Nuclear Power Plants Issues in IAEA Technical Guidelines on Fluid-Structure Interactions
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Topics: Fluid structure interaction, Nuclear power stations, Flow-induced vibrations, Engineering prototypes, Nuclear power, Structural design, Vibration, Water hammer
Journal Articles

Development of Boiling Water Reactor Steam Dryer Loading Evaluation Methods Through Scale Model Tests Under Actual Steam Conditions

Shiro Takahashi, Keita Okuyama, Akinori Tamura, Yasuhiro Mabuchi, Teppei Kubota, Kazuhiro Yoshikawa
Journal: Journal of Pressure Vessel Technology
Publisher: ASME
Article Type: Research-Article
J. Pressure Vessel Technol. October 2014, 136(5): 051307.
Paper No: PVT-13-1151
https://doi.org/10.1115/1.4026580
Published Online: August 19, 2014
View Article titled, Development of Boiling Water Reactor Steam Dryer Loading Evaluation Methods Through Scale Model Tests Under Actual Steam Conditions
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Topics: Acoustics, Boiling water reactors, Flow (Dynamics), Pipes, Pressure, Resonance, Steam, Fluids
Proceedings Papers

Development of BWR Steam Dryer Loading Evaluation Methods Through Scale Model Tests Under Actual Steam Conditions

Shiro Takahashi, Keita Okuyama, Akinori Tamura, Yasuhiro Mabuchi, Teppei Kubota, Kazuhiro Yoshikawa
Proc. ASME. PVP2013, Volume 4: Fluid-Structure Interaction, V004T04A046, July 14–18, 2013
Publisher: American Society of Mechanical Engineers
Paper No: PVP2013-97564
https://doi.org/10.1115/PVP2013-97564
View Paper titled, Development of BWR Steam Dryer Loading Evaluation Methods Through Scale Model Tests Under Actual Steam Conditions
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Topics: Boiling water reactors, Evaluation methods, Steam, Pressure, Pipes, Resonance, Acoustics, Flow (Dynamics), Fluids, Vortices
Proceedings Papers

Numerical Evaluation of Fluctuating Pressure at Stub Pipes in Actual BWR Main Steam Lines

Ryo Morita, Shiro Takahashi, Fumio Inada, Yukio Ogawa
Proc. ASME. ICONE18, 18th International Conference on Nuclear Engineering: Volume 5, 463-468, May 17–21, 2010
Publisher: American Society of Mechanical Engineers
Paper No: ICONE18-29355
https://doi.org/10.1115/ICONE18-29355
View Paper titled, Numerical Evaluation of Fluctuating Pressure at Stub Pipes in Actual BWR Main Steam Lines
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Topics: Boiling water reactors, Pipes, Pressure, Steam, Resonance, Acoustics, Fluctuations (Physics), Nuclear power stations, Power uprate, Evaluation methods
Proceedings Papers

Fluctuating Pressure Generating in BWR Main Steam Lines Acoustic Excited by Safety Relief Valve Stub Pipes and Dead Legs

Shiro Takahashi, Keita Okuyama, Akinori Tamura, Masaya Ohtsuka, Masaaki Tsubaki, Mabuchi Yasuhiro, Teppei Kubota, Yukio Ogawa, Fumio Inada, Ryo Morita
Proc. ASME. ICONE18, 18th International Conference on Nuclear Engineering: Volume 5, 469-478, May 17–21, 2010
Publisher: American Society of Mechanical Engineers
Paper No: ICONE18-29361
https://doi.org/10.1115/ICONE18-29361
View Paper titled, Fluctuating Pressure Generating in BWR Main Steam Lines Acoustic Excited by Safety Relief Valve Stub Pipes and Dead Legs
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Topics: Acoustics, Boiling water reactors, Pipes, Pressure, Relief valves, Safety, Steam, Resonance, Flow (Dynamics), Finite element methods
Proceedings Papers

Computational Investigation of Pressure Fluctuations in BWR Main Steam Line

Ryo Morita, Fumio Inada, Shiro Takahashi, Kazuhiro Yoshikawa
Proc. ASME. PVP2009, Volume 4: Fluid-Structure Interaction, 309-315, July 26–30, 2009
Publisher: American Society of Mechanical Engineers
Paper No: PVP2009-77556
https://doi.org/10.1115/PVP2009-77556
View Paper titled, Computational Investigation of Pressure Fluctuations in BWR Main Steam Line
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Topics: Boiling water reactors, Fluctuations (Physics), Pressure, Steam, Pipes, Acoustics, Air flow, Computer simulation, Excitation, High cycle fatigue
Proceedings Papers

Flow Visualization of Acoustic Resonance for Safety Relief Valves in Power Uprated BWRs

Keita Okuyama, Shiro Takahashi, Akinori Tamura, Koji Nishida, Masaya Ohtsuka, Masaaki Tsubaki
Proc. ASME. ICONE17, Volume 3: Thermal Hydraulics; Current Advanced Reactors: Plant Design, Construction, Workforce and Public Acceptance, 11-18, July 12–16, 2009
Publisher: American Society of Mechanical Engineers
Paper No: ICONE17-75035
https://doi.org/10.1115/ICONE17-75035
View Paper titled, Flow Visualization of Acoustic Resonance for Safety Relief Valves in Power Uprated BWRs
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Topics: Acoustics, Boiling water reactors, Flow visualization, Relief valves, Resonance, Safety, Pipes, Pressure, Vorticity, Power uprate
Proceedings Papers

Experimental Study of Acoustic and Flow-Induced Vibrations in BWR Main Steam Lines and Steam Dryers

Shiro Takahashi, Masaya Ohtsuka, Keita Okuyama, Takashi Ito, Kazuhiro Yoshikawa
Proc. ASME. PVP2008, Volume 4: Fluid-Structure Interaction, 41-47, July 27–31, 2008
Publisher: American Society of Mechanical Engineers
Paper No: PVP2008-61318
https://doi.org/10.1115/PVP2008-61318
View Paper titled, Experimental Study of Acoustic and Flow-Induced Vibrations in BWR Main Steam Lines and Steam Dryers
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Topics: Acoustics, Boiling water reactors, Dryers, Flow-induced vibrations, Steam, Pipes, Pressure, Resonance, Flow (Dynamics), Domes (Structural elements)
Proceedings Papers

Analytical Evaluation of Unsteady Thermal Hydraulic Characteristics in Shell and Tube Heat Exchangers

Shiro Takahashi, Yuichi Narumi, Kiyoshi Ishihama, Akihito Yokoyama, Toyohiko Tsuge, Masaaki Hayashi, Hidetoshi Takehara, Norimichi Yamashita
Proc. ASME. ICONE14, Volume 2: Thermal Hydraulics, 393-400, July 17–20, 2006
Publisher: American Society of Mechanical Engineers
Paper No: ICONE14-89389
https://doi.org/10.1115/ICONE14-89389
View Paper titled, Analytical Evaluation of Unsteady Thermal Hydraulic Characteristics in Shell and Tube Heat Exchangers
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Topics: Heat exchangers, Shells, Flow (Dynamics), Vortices, Computational fluid dynamics, Eddies (Fluid dynamics), Fluctuations (Physics), Fluids, Nuclear power stations, Reliability