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Proceedings Papers

Prediction of the Operating Control Rod Position of the HTTR With Supervised Machine Learning

Hai Quan Ho, Satoru Nagasumi, Yosuke Shimazaki, Toshiaki Ishii, Kazuhiko Iigaki, Minoru Goto, Irwan Liapto Simanullang, Nozomu Fujimoto, Etsuo Ishitsuka

Proc. ASME. ICONE29, Volume 2: Nuclear Fuel and Material, Reactor Physics and Transport Theory, and Fuel Cycle Technology, V002T02A025, August 8–12, 2022

Paper No: ICONE29-90826

DOI: https://doi.org/10.1115/ICONE29-90826

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Topics: Machine learning, Safety

Proceedings Papers

Preparation Method of ORIGEN2 Library for High Temperature Gas-Cooled Reactors

Irwan Liapto Simanullang, Katsuki Fukuhara, Keisuke Morita, Yuji Fukaya, Hai Quan Ho, Satoru Nagasumi, Kazuhiko Iigaki, Etsuo Ishitsuka, Nozomu Fujimoto

Proc. ASME. ICONE29, Volume 2: Nuclear Fuel and Material, Reactor Physics and Transport Theory, and Fuel Cycle Technology, V002T02A023, August 8–12, 2022

Paper No: ICONE29-90802

DOI: https://doi.org/10.1115/ICONE29-90802

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Topics: Very high temperature reactors

Proceedings Papers

Estimation of Vibration Characteristics of Nuclear Facilities Based on Seismic Observation Records

Kouki Yamakawa, Masaaki Saruta, Hiroshi Moritani, Hiroaki Yamazaki, Akemi Nishida, Manabu Kawata, Kazuhiko Iigaki

Proc. ASME. ICONE28, Volume 1: Operating Plant Challenges, Successes, and Lessons Learned; Nuclear Plant Engineering; Advanced Reactors and Fusion; Small Modular and Micro-Reactors Technologies and Applications, V001T02A010, August 4–6, 2021

Paper No: ICONE28-64337

DOI: https://doi.org/10.1115/ICONE28-64337

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Topics: Nuclear power stations, Vibration, Displacement, Earthquakes, Excitation, Finite element model, Deformation, Pacific Ocean, Shorelines

Journal Articles

Comprehensive Seismic Evaluation of HTTR Against the 2011 Off the Pacific Coast of Tohoku Earthquake

Masato Ono, Kazuhiko Iigaki, Hiroaki Sawahata, Yosuke Shimazaki, Atsushi Shimizu, Hiroyuki Inoi, Toshinari Kondo, Keidai Kojima, Shoji Takada, Kazuhiro Sawa

ASME J of Nuclear Rad Sci. April 2018, 4(2): 020906.

Paper No: NERS-16-1104

DOI: https://doi.org/10.1115/1.4039288

Published Online: March 5, 2018

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Topics: Earthquakes, Inspection, Instrumentation, Pacific Ocean, Shorelines, Optical quality control

Proceedings Papers

Thermal Mixing Behavior in the Annulus of Co-Axial Double-Walled Piping in HTGR

Daisuke Tochio, Yusuke Fujiwara, Masato Ono, Masanori Shinohara, Shimpei Hamamoto, Kazuhiko Iigaki, Shoji Takada

Proc. ASME. ICONE24, Volume 2: Smart Grids, Grid Stability, and Offsite and Emergency Power; Advanced and Next Generation Reactors, Fusion Technology; Safety, Security, and Cyber Security; Codes, Standards, Conformity Assessment, Licensing, and Regulatory Issues, V002T06A034, June 26–30, 2016

Paper No: ICONE24-60843

DOI: https://doi.org/10.1115/ICONE24-60843

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Topics: Annulus, Pipes, Very high temperature reactors, Helium, Temperature, Flow (Dynamics), Coolants, Cooling systems, Gas flow, Gases

Proceedings Papers

Characteristic Confirmation Test by Using HTTR and Investigation of Absorbing Thermal Load Fluctuation

Yuki Honda, Daisuke Tochio, Hiroyuki Sato, Shigeaki Nakagawa, Masato Ono, Yusuke Fujiwara, Shimpei Hamamoto, Kazuhiko Iigaki, Shoji Takada

Paper No: ICONE24-60355

DOI: https://doi.org/10.1115/ICONE24-60355

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Topics: Stress, Very high temperature reactors, Temperature, Graphite, Heat, Testing performance, Combined heat and power, Fuels, High temperature, Nuclear power stations

Proceedings Papers

Loss of Core Cooling Test Without One Cooling Line in Vessel Cooling System (VCS) of High Temperature Engineering Test Reactor (HTTR)

Yusuke Fujiwara, Takahiro Nemoto, Daisuke Tochio, Masanori Shinohara, Masato Ono, Shimpei Hamamoto, Kazuhiko Iigaki, Shoji Takada

Paper No: ICONE24-60858

DOI: https://doi.org/10.1115/ICONE24-60858

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Topics: Cooling, Cooling systems, High temperature, Vessels, Temperature, Reactor vessels, Concretes, Heat, Helium, Control systems

Proceedings Papers

Confirmation of Seismic Integrity of HTTR Against 2011 Great East Japan Earthquake

Masato Ono, Kazuhiko Iigaki, Yosuke Shimazaki, Atsushi Shimizu, Hiroyuki Inoi, Daisuke Tochio, Shimpei Hamamoto, Tetsuo Nishihara, Shoji Takada, Kazuhiro Sawa, Toshinari Kondo, Keidai Kojima

Paper No: ICONE24-60571

DOI: https://doi.org/10.1115/ICONE24-60571

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Topics: Earthquakes, Inspection, Instrumentation, Very high temperature reactors, Damage, Earthquake resistant design, High temperature, Industrial research, Maintenance, Nuclear power

Journal Articles

Investigation of Countermeasure Against Local Temperature Rise in Vessel Cooling System in Loss of Core Cooling Test Without Nuclear Heating

Masato Ono, Atsushi Shimizu, Makoto Kondo, Yosuke Shimazaki, Masanori Shinohara, Daisuke Tochio, Kazuhiko Iigaki, Shigeaki Nakagawa, Shoji Takada, Kazuhiro Sawa

ASME J of Nuclear Rad Sci. October 2016, 2(4): 044502.

Paper No: NERS-15-1178

DOI: https://doi.org/10.1115/1.4032478

Published Online: October 12, 2016

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Topics: Cooling, Heating, Temperature, Water, Cooling systems, Vessels, Flow (Dynamics), Heat

Proceedings Papers

Influence of Differences Between Seismic Safety Evaluation Methods for Equipment and Piping of a Nuclear Facility

Akemi Nishida, Kazuhiko Iigaki, Kazuhiro Sawa, Yinsheng Li

Proc. ASME. PVP2015, Volume 8: Seismic Engineering, V008T08A014, July 19–23, 2015

Paper No: PVP2015-45913

DOI: https://doi.org/10.1115/PVP2015-45913

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Topics: Evaluation methods, Pipes, Safety, Waves, Cooling systems, Piping systems

Proceedings Papers

Structural Analysis for Assembly by Integrating Parts

Norihiro Nakajima, Akemi Nishida, Yoshiaki Kawakami, Tatsuo Okada, Osamu Tsuruta, Kazuhiro Sawa, Kazuhiko Iigaki

Proc. ASME. ICONE22, Volume 1: Plant Operations, Maintenance, Engineering, Modifications, Life Cycle and Balance of Plant; Nuclear Fuel and Materials; Plant Systems, Structures and Components; Codes, Standards, Licensing and Regulatory Issues, V001T03A009, July 7–11, 2014

Paper No: ICONE22-30251

DOI: https://doi.org/10.1115/ICONE22-30251

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Topics: Manufacturing, Structural analysis, Computers, Finite element analysis, High temperature, Nuclear power

Proceedings Papers

Preliminary Study on Thermal-Load Fluctuation Test Using HTTR

Daisuke Tochio, Yosuke Shimazaki, Kazuhiko Iigaki, Shigeaki Nakagawa, Shoji Takada, Nariaki Sakaba, Kazuhiro Sawa

Proc. ASME. ICONE21, Volume 2: Plant Systems, Construction, Structures and Components; Next Generation Reactors and Advanced Reactors, V002T05A034, July 29–August 2, 2013

Paper No: ICONE21-16082

DOI: https://doi.org/10.1115/ICONE21-16082

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Topics: Stress, Dynamics (Mechanics), Hydrogen production, Combined heat and power, Design, Hydrogen, Industrial plants, Scram, Steady state, Very high temperature reactors

Proceedings Papers

A Safety Evaluation of HTTR Core Components Against 2011 Tohoku Earthquake

Kazuhiko Iigaki, Masato Ono, Yosuke Shimazaki, Daisuke Tochio, Atsushi Shimizu, Hiroyuki Inoi, Shoji Takada, Kazuhiro Sawa

Proc. ASME. ICONE21, Volume 2: Plant Systems, Construction, Structures and Components; Next Generation Reactors and Advanced Reactors, V002T05A035, July 29–August 2, 2013

Paper No: ICONE21-16091

DOI: https://doi.org/10.1115/ICONE21-16091

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Topics: Earthquakes, Safety, Seismic analysis, Design, Graphite, Inspection, Magnification, Optical quality control, Seismic waves, Stress

Proceedings Papers

Improvement of Temperature Evaluation Model of Biological Shielding Concrete for HTTR Test Simulating LOFC With VCS Inactive

Shoji Takada, Shunki Yanagi, Kazuhiko Iigaki, Masanori Shinohara, Daisuke Tochio, Yosuke Shimazaki, Masato Ono, Kazuhiro Sawa

Proc. ASME. ICONE21, Volume 2: Plant Systems, Construction, Structures and Components; Next Generation Reactors and Advanced Reactors, V002T05A036, July 29–August 2, 2013

Paper No: ICONE21-16095

DOI: https://doi.org/10.1115/ICONE21-16095

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Topics: Concretes, Temperature, Cooling, Heat transfer, Fins, Heat conduction, Natural convection, Thermal radiation, Very high temperature reactors, Water

Proceedings Papers

Impact Response Analysis of a Coaxial Double-Pipe Structure by Using Spectral Element Method

Akemi Nishida, Kazuhiko Iigaki

Proc. ASME. PVP2011, Volume 8: Seismic Engineering, 269-277, July 17–21, 2011

Paper No: PVP2011-57187

DOI: https://doi.org/10.1115/PVP2011-57187

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Topics: Pipes, Damping, Coolants, Structural response analysis, Very high temperature reactors, Vibration

Journal citation

NARROW

Prediction of the Operating Control Rod Position of the HTTR With Supervised Machine Learning

Preparation Method of ORIGEN2 Library for High Temperature Gas-Cooled Reactors

Estimation of Vibration Characteristics of Nuclear Facilities Based on Seismic Observation Records

Comprehensive Seismic Evaluation of HTTR Against the 2011 Off the Pacific Coast of Tohoku Earthquake

Thermal Mixing Behavior in the Annulus of Co-Axial Double-Walled Piping in HTGR

Characteristic Confirmation Test by Using HTTR and Investigation of Absorbing Thermal Load Fluctuation

Loss of Core Cooling Test Without One Cooling Line in Vessel Cooling System (VCS) of High Temperature Engineering Test Reactor (HTTR)

Confirmation of Seismic Integrity of HTTR Against 2011 Great East Japan Earthquake

Investigation of Countermeasure Against Local Temperature Rise in Vessel Cooling System in Loss of Core Cooling Test Without Nuclear Heating

Influence of Differences Between Seismic Safety Evaluation Methods for Equipment and Piping of a Nuclear Facility

Structural Analysis for Assembly by Integrating Parts

Preliminary Study on Thermal-Load Fluctuation Test Using HTTR

A Safety Evaluation of HTTR Core Components Against 2011 Tohoku Earthquake

Improvement of Temperature Evaluation Model of Biological Shielding Concrete for HTTR Test Simulating LOFC With VCS Inactive

Impact Response Analysis of a Coaxial Double-Pipe Structure by Using Spectral Element Method

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