Oral presentation

[3J01-05] SeismicPRA

Fri. Sep 9, 2022 9:30 AM - 10:55 AM Room J (E1 Bildg.4F No.42)

Chair:Sunghyon Jang(Hokkaido Univ.)

9:30 AM - 9:45 AM

[3J01] A Framework of RI-PB Design Application for Seismic Events

Part 13 : Balancing system risk in existing plants

*Noa Matsumaru¹, Yasuki Ohtori¹, Hitoshi Muta¹, Toshiaki Sakai², Yoshifumi Katayama³ (1. TCU, 2. CRIEPI, 3. Chuden Engineering Consultants)

9:45 AM - 10:00 AM

[3J02] Development of a random number generation method for earthquake risk assessment

(3) Streamlining DQFM

*Daichi Ogawa¹, Shota Terayama¹, Yasuki Ohtori¹, Hitoshi Muta¹ (1. TOKYO CITY UNIVERSITY)

10:00 AM - 10:15 AM

[3J03] Evaluation of Seismic Diversity of SSC system in PRA

Part3 : Examination of the influence of seismic source characteristics on the seismic diversity system

*Katayama Yoshifumi¹, Yasuki Ohtori², Toshiaki Sakai³, Hitoshi Muta² (1. Chuden Engineering Consultants, 2. TCU, 3. CRIEPI)

10:15 AM - 10:30 AM

[3J04] Evaluation of Seismic Diversity of SSC system in PRA

Part 4: Improvement of calculation method for floor response spectrum

*Mitsuharu Ohara¹, Yasuki Ohtori¹, Hitoshi Muta¹, Yoshifumi Katayama², Toshiaki Sakai³ (1. TCU, 2. CEC, 3. CRIEPI)

10:30 AM - 10:45 AM

[3J05] Industry's activities to refine direct core damage scenarios in Seismic PRA

*Takahiro Watanabe¹, Shudai Fujimoto², Shuhei Matsunaka³, Bumpei Fujioka⁴, Ryusuke Haraguchi⁵, Takashi KATO⁶, Kensuke Toyoshima⁷ (1. TEPCO HD, 2. KEPCO, 3. TEPSYS, 4. HGNE, 5. MHI, 6. TOSHIBA ESS, 7. NEL)

Time reserved for Chair （10:45 AM - 10:55 AM）

Oral presentation

[3J06-09] External/DynamicPRA

Fri. Sep 9, 2022 10:55 AM - 12:00 PM Room J (E1 Bildg.4F No.42)

Chair:Hitoshi Muta(TCU)

10:55 AM - 11:10 AM

[3J06] Improvement of Evaluation Method for Flooding Propagation for Internal Flooding PRA

*Daichi Nagai¹, Koji Tasaka¹, Koji Shirai¹ (1. CRIEPI)

11:10 AM - 11:25 AM

[3J07] Applicability of computer codes of tornado-borne missile strike probability toward tornado-PRA

*YUZURU EGUCHI¹, TAKAHIRO MURAKAMI¹, KOSUKE NAMBA¹, YASUO HATTORI¹ (1. Central Research Institute of Electric Power Industry)

11:25 AM - 11:40 AM

[3J08] Study on improvement of the efficiency of statistical sampling of rare event evaluation applicable for Multi-Unit Dynamic PRA using Continuous Markov process Monte Carlo method

*Tomomi Hanai¹, Satoshi Shinzaki¹, Takamasa Kurokawa¹, Kensuke Toyoshima¹, Masayuki Hijiya¹, Sunghyon Jang², Akira Yamaguchi² (1. NEL, 2. UTokyo)

11:40 AM - 11:55 AM

[3J09] Approach Comparison of Uncertainty Treatment in PRA and Dynamic PRA

*Xiaoyu Zheng¹, Hitoshi Tamaki¹, Tomoyuki Sugiyama¹ (1. JAEA)

Time reserved for Chair （11:55 AM - 12:00 PM）

Oral presentation

[3J10-14] HRA/CMF/Decommissioning

Fri. Sep 9, 2022 2:45 PM - 4:10 PM Room J (E1 Bildg.4F No.42)

Chair:Tomohiko Ikegawa(Hitachi)

2:45 PM - 3:00 PM

[3J10] A Study on Human Error Probability Considering Environmental Change caused by Multi-unit Effect

- Evaluation of Impact of Skill and Manual using Fuzzy Inference

*Sunghyon Jang¹, Akira Yamaguchi², Tomomi Hanai³, Satoshi Shinzaki³, Takamasa Kurokawa³, Kensuke Toyoshima³, Masayuki Hijiya³ (1. The University of Tokyo (Currently,Hokkaido University), 2. The University of Tokyo (Currently, NSRA), 3. Nuclear Engineering, Ltd)

3:00 PM - 3:15 PM

[3J11] Consideration of human factors in safety of spent fuel pool using the CMMC method

*Kaito Mori¹, Yuki Morishita¹, Akio Yamamoto¹, Tomohiro Endo¹ (1. Nagoya Univ.)

3:15 PM - 3:30 PM

[3J12] Importance Measure Considering Common Cause Failure

Part 2: seismic vulnerability meaure against unexpected multiple damage

*Yasuki Ohtori¹, Hitoshi Muta¹, Toshiaki Sakai² (1. Tokyo City University, 2. CRIEPI)

3:30 PM - 3:45 PM

[3J13] Research on problem-solving strategies and processes to achieve safe and smooth decommissioning

(1) Summary of risk and safety concepts for decommissioning

*Toshiyuki Takeda¹, Masaki ONODERA¹, Shintaro YAGI¹, Tomoaki SUENAGA¹, Harunaga YANAGAWA¹, Kiyoshi NAKAJIMA¹, Junji ETO¹, Hiroshi SUZUKI¹ (1. Mitsubishi Research Institute, Inc.)

3:45 PM - 4:00 PM

[3J14] Research on problem-solving strategies and processes to achieve safe and smooth decommissioning

(2) Disposal options for low-level radioactive waste generated as a result of decommissioning

*Masaki Onodera¹, TOshiyuki Takeda¹, Shintaro Yagi¹, Tomoaki Suenaga¹, Harunaga Yanagawa¹, Kiyoshi Nakajima¹, Junji Eto¹, Hiroshi Suzuki¹ (1. MRI)

Time reserved for Chair （4:00 PM - 4:10 PM）

Sessions

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

[3J01-05] SeismicPRA

[3J01] A Framework of RI-PB Design Application for Seismic Events

Part 13 : Balancing system risk in existing plants

[3J02] Development of a random number generation method for earthquake risk assessment

(3) Streamlining DQFM

[3J03] Evaluation of Seismic Diversity of SSC system in PRA

Part3 : Examination of the influence of seismic source characteristics on the seismic diversity system

[3J04] Evaluation of Seismic Diversity of SSC system in PRA

Part 4: Improvement of calculation method for floor response spectrum

[3J05] Industry's activities to refine direct core damage scenarios in Seismic PRA

[3J06-09] External/DynamicPRA

[3J06] Improvement of Evaluation Method for Flooding Propagation for Internal Flooding PRA

[3J07] Applicability of computer codes of tornado-borne missile strike probability toward tornado-PRA

[3J08] Study on improvement of the efficiency of statistical sampling of rare event evaluation applicable for Multi-Unit Dynamic PRA using Continuous Markov process Monte Carlo method

[3J09] Approach Comparison of Uncertainty Treatment in PRA and Dynamic PRA

[3J10-14] HRA/CMF/Decommissioning

[3J10] A Study on Human Error Probability Considering Environmental Change caused by Multi-unit Effect

- Evaluation of Impact of Skill and Manual using Fuzzy Inference

[3J11] Consideration of human factors in safety of spent fuel pool using the CMMC method

[3J12] Importance Measure Considering Common Cause Failure

Part 2: seismic vulnerability meaure against unexpected multiple damage

[3J13] Research on problem-solving strategies and processes to achieve safe and smooth decommissioning

(1) Summary of risk and safety concepts for decommissioning

[3J14] Research on problem-solving strategies and processes to achieve safe and smooth decommissioning

(2) Disposal options for low-level radioactive waste generated as a result of decommissioning

Authentication