Oral presentation

[1L01-06] External PRA

Wed. Sep 16, 2020 10:00 AM - 11:45 AM Room L (Zoom room 12)

Chair:Takahiro Kuramoto(NEL)

10:00 AM - 10:15 AM

[1L01] Development of Dynamic PRA Methodology

(1)Overview of the Methodology in JAEA

*Hitoshi TAMAKI¹, Xiaoyu Zheng¹, Yoichi TANAKA¹, kotaro KUBO¹, Tomoyuki SUGIYAMA¹, Yu MARUYAMA¹ (1. JAEA)

10:15 AM - 10:30 AM

[1L02] Development of Dynamic PRA Methodology

(2)Methodology Construction and Tool Development

*Xiaoyu Zheng¹, Kotaro Kubo¹, Yoichi Tanaka¹, Hitoshi Tamaki¹, Tomoyuki Sugiyama¹, Yu Maruyama¹ (1. JAEA)

10:30 AM - 10:45 AM

[1L03] A Framework of RI-PB Design Application for Seismic Events

Part 5: Evaluation of Seismic Diversity and Robustness for Nuclear Power Plants

*Yoshifumi Katayama¹, Yasuki Ohtori², Toshiaki Sakai¹, Hitoshi Muta², Tadashi Annaka³ (1. CRIEPI, 2. Tokyo City Univ., 3. TEPSCO)

10:45 AM - 11:00 AM

[1L04] A Framework of RI-PB Design Application for Seismic Events

Part 6:Development of system analysis code considering diversity of period characteristics of nuclear facilities

*Mituharu Ohara¹, Yasuki Ohtori¹, Hitoshi Muta¹, Yoshifumi Katayama², Toshiro Sakai² (1. Tokyo City Univ. , 2. CRIEPI)

11:00 AM - 11:15 AM

[1L05] Development of Seismic-Tsunami PRA methodology

Part 5: Probabilistic Seismic-Tsunami Hazard Assessment for PRA

*Yasuki Ohtori¹, Ryu Harada¹, Tadashi Annaka², Hitoshi Muta¹ (1. Tokyo City University, 2. Tokyo Electric Power Services Co., Ltd.)

11:15 AM - 11:30 AM

[1L06] Development of Seismic-Tsunami PRA methodology

Part 6: Conclusion and Insight from Development of Seismic-Tsunami PRA Methodology

*Hitoshi Muta¹, Yasuki Ohtori¹, Ryu Harada¹, Hirohisa Yamakawa¹ (1. Tokyo City University)

Time reserved for Chair （11:30 AM - 11:45 AM）

Oral presentation

[1L07-14] Flood PRA

Wed. Sep 16, 2020 2:45 PM - 5:00 PM Room L (Zoom room 12)

Chair:katsumi ebisawa(CRIEPI)

2:45 PM - 3:00 PM

[1L07] Construction of the technical basis for tsunami PRA

Part 6: Practical approach for making tsunami input waveforms reflecting hazard evaluation

*Takumi Yoshii¹, Masafumi Matsuyama¹, Yoshiaki Watanuki¹, Yoshinori Satou², Mitsuharu Asaka², Masashi Otsu³, Katsuhide Kato³ (1. CRIEPI, 2. Unic, 3. Chubu Electric Power)

3:00 PM - 3:15 PM

[1L08] Construction of the technical basis for tsunami PRA<gdiv></gdiv>

Part 7: Tsunami input waveforms for fragility evaluation in consideration of tsunami impact on protective facilities<gdiv></gdiv>

*Masafumi Matsuyama¹, Takumi Yoshii¹, Yoshiaki Watanuki¹, Yoshinori Sato², Mitsuharu Asaka², Masaaki Wani³, Kouto Ito³ (1. CRIEPI, 2. UNIC Corporation, 3. Chubu Electric Power Co., Inc.)

3:15 PM - 3:30 PM

[1L09] Construction of the technical basis for tsunami PRA

Part 8 : Proposal of evaluation method of the leakage flow through the building wall induced by tsunami wave pressure

*Hideki Kaida¹, Masafumi Matsuyama¹, Yoshiaki Watanuki¹, Yoshinori Mihara², Takafumi Hiraki³, Atsushi Onoouchi³ (1. CRIEPI, 2. Kajima Corp, 3. Chubu Electric Power Co., Inc.)

3:30 PM - 3:45 PM

[1L10] Construction of the technical basis for tsunami PRA

Part 9: A method for development of inundation propagation model due to tsunami based on the deterministic internal flooding model

*Yuichiro Miyake¹, Hiroyuki Yamada², Akio Okamoto³, Kentarou Nakamura³ (1. Toshiba Energy Systems & Solutions Corporation, 2. CRIEPI, 3. Chubu Electric Power Co., Inc.)

3:45 PM - 4:00 PM

[1L11] Construction of the technical basis for tsunami PRA

Part 10: Development of the component fragility evaluation method considering inundation in nuclear reactor buildings

*Hiroyuki Yamada¹, Hiromichi Miura¹, Atsushi Ui¹, Tatsuya Katoh², Shingo Tsumura³ (1. CRIEPI, 2. Toshiba Energy Systems & Solutions Corporation, 3. Chubu Electric Power Co., Inc.)

4:00 PM - 4:15 PM

[1L12] Construction of the technical basis for tsunami PRA

Part 11: Outline of Accident Sequence Evaluation for Actual Nuclear Power Plant

*Hiromichi Miura¹, Yoshiaki Watanuki¹, Hiroki Kurasawa², Yuji Komori³, Takashi Kato³, Nobuhiro Hara³, Naoto Kitahara³ (1. CRIEPI, 2. Chubu Electric Power, 3. TOSHIBA ESS)

4:15 PM - 4:30 PM

[1L13] Construction of the technical basis for tsunami PRA

Part 12: Improvement of human reliability analysis (HRA) with consideration of tsunami effects

*Yukihiro Kirimoto¹, Daisuke Takeda¹, Kohei Nonose¹, Kenichi Hayase¹, Hiroki Kurasawa² (1. CRIEPI, 2. Chubu Electric Power)

4:30 PM - 4:45 PM

[1L14] Construction of the technical basis for tsunami PRA

Part 13:Construction of Accident Sequence Evaluation Model for Actual Nuclear Power Plant

*Kato Takashi¹, Komori Yuji¹, Hara Nobuhiro¹, Kitahara Naoto¹, Miura Hiromichi², Suzuki Motomu², Kurasawa Hiroki³ (1. Toshiba Energy Systems & Solutions Corporation, 2. Central Research Institute of Electric Power Industry, 3. Chubu Electric Power Co., Inc.)

Time reserved for Chair （4:45 PM - 5:00 PM）

Oral presentation

[2L01-06] New PRA

Thu. Sep 17, 2020 10:00 AM - 11:45 AM Room L (Zoom room 12)

Chair:Yoshihiro IDE(AdvanceSoft)

10:00 AM - 10:15 AM

[2L01] Effect of Failure Modes and Evaluation Methods on Fragility Results in Seismic Fragility Evaluation of Piping Systems

*Yohei Ono¹, Michiya Sakai¹, Ryuya Shimazu¹, Shinichi Matsuura¹ (1. Central Research Institute of Electric Power Industry)

10:15 AM - 10:30 AM

[2L02] Probabilistic Risk Assessment on Combined Event of Earthquake and Internal Flooding with Effect of After shock

*SUNGHYON JANG¹, Kazuki Ogushi¹, Takashi Takata¹, Akira Yamaguchi¹ (1. The University of Tokyo)

10:30 AM - 10:45 AM

[2L03] Development of the risk assessment technique for EAL

(1)The assessment technique using Level 1 PRA model

Mika Tahara², *Takanori Aoki¹, Nobuhisa Takezawa², Takahiro Nakagawa¹ (1. Toshiba Plant Systems & Services Corporation, 2. Toshiba Energy Systems & Solutions Corporation)

10:45 AM - 11:00 AM

[2L04] Development of Integrated Risk Assessment Methodology for External Event

Part 4: Study of dynamic risk assessment method using interaction multi-layer model

*Kenji MORI¹, Hitoshi MUTA¹, Yasuki OHTORI¹ (1. Corporative Major in Nuclear Energy, Graduate School, Tokyo City University)

11:00 AM - 11:15 AM

[2L05] Study on cluster analysis methodology for uncertainty of level 3 PRA models

*Ryohei Ichikawa¹ (1. NRA)

11:15 AM - 11:30 AM

[2L06] A Social Cost Model for Nuclear Damage Compensation with the Concept of Risk

A study on the possibility of avoiding Judgment Proof problem under the limited liability

*Takashi MIYAKE¹, Sunghyon Jang¹, Takashi Takata¹, Akira Yamaguchi¹ (1. univ.of Tokyo)

Time reserved for Chair （11:30 AM - 11:45 AM）

Oral presentation

[2L07-08] CCF Evaluation

Thu. Sep 17, 2020 2:45 PM - 3:30 PM Room L (Zoom room 12)

Chair:Hiroshi Ujita(AdvanceSoft)

2:45 PM - 3:00 PM

[2L07] Study on PRA considering Correlation between Multiple Safety Systems using the Continuous Markov Monte Carlo Methods

*Kento Sawada¹, Tomohiro Endo¹, Akio Yamamoto¹, Sunghyon Jang², Daisuke Fujiwara³, Chikahiro Sato³ (1. Nagoya Univ., 2. Univ. of Tokyo, 3. TEPSYS)

3:00 PM - 3:15 PM

[2L08] Trial estimation of CCF parameters for 16 safety relief valves by using prior distribution evaluation method in U.S.

*Tomohiko Ikegawa¹, Ryusuke Kimura² (1. Hitachi, 2. HGNE)

Time reserved for Chair （3:15 PM - 3:30 PM）

Sessions

IV. Nuclear Plant Technologies » 403-1 Risk Assessment Technology, Application of Risk Information

[1L01-06] External PRA

(1)Overview of the Methodology in JAEA

(2)Methodology Construction and Tool Development

Part 5: Evaluation of Seismic Diversity and Robustness for Nuclear Power Plants

Part 6:Development of system analysis code considering diversity of period characteristics of nuclear facilities

Part 5: Probabilistic Seismic-Tsunami Hazard Assessment for PRA

Part 6: Conclusion and Insight from Development of Seismic-Tsunami PRA Methodology

[1L07-14] Flood PRA

Part 6: Practical approach for making tsunami input waveforms reflecting hazard evaluation

Part 7: Tsunami input waveforms for fragility evaluation in consideration of tsunami impact on protective facilities<gdiv></gdiv>

Part 8 : Proposal of evaluation method of the leakage flow through the building wall induced by tsunami wave pressure

Part 9: A method for development of inundation propagation model due to tsunami based on the deterministic internal flooding model

Part 10: Development of the component fragility evaluation method considering inundation in nuclear reactor buildings

Part 11: Outline of Accident Sequence Evaluation for Actual Nuclear Power Plant

Part 12: Improvement of human reliability analysis (HRA) with consideration of tsunami effects

Part 13:Construction of Accident Sequence Evaluation Model for Actual Nuclear Power Plant

[2L01-06] New PRA

(1)The assessment technique using Level 1 PRA model

Part 4: Study of dynamic risk assessment method using interaction multi-layer model

A study on the possibility of avoiding Judgment Proof problem under the limited liability

[2L07-08] CCF Evaluation

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