[3H01-07] Hydrogen Measures | 2025 Fall Meeting

Session Details

Oral presentationIV. Nuclear Plant Technologies : 402-1 Nuclear Safety Engineering (Safety Design, Safety Assessment/Analysis, Management)

[3H01-07]Hydrogen Measures

Fri. Sep 12, 2025 9:55 AM - 11:55 AM JST
Fri. Sep 12, 2025 12:55 AM - 2:55 AM UTC

Room H(AIM3F Exhibition Hall D)

Chair:Hidemasa Yamano(JAEA)

9:55 AM - 10:10 AM JST(12:55 AM - 1:10 AM UTC)

[3H01]Development of Reactor Building and Containment Vessel Thermo-Fluid Dynamics Code, Advance/BAROC(13) Visualization of Hydrogen Deflagration/Detonation Regions Inside a Reactor Building

*Fumitomo Onishi¹, Achihiro Hamano¹, Toshiharu Mitsuhashi¹, Atsuo Takahashi¹, Hirotaka Hadachi¹, Hideaki Koike¹, Masanori Naitoh¹ (1. AdvanceSoft Corporation)

Comment()

10:10 AM - 10:25 AM JST(1:10 AM - 1:25 AM UTC)

[3H02]Development of Reactor Building and Containment Vessel Thermo-Fluid Dynamics Code, Advance/BAROC(14) Sensitivity analysis of FP aerosol behavior around the shield plug

*Atsuo Takahashi¹, Toshiharu Mitsuhashi¹, Achihiro Hamano¹, Fumitomo Onishi¹, Hirotaka Hadachi¹, Hideaki Koike¹, Masanori Naitoh¹ (1. AdvanceSoft Corporation)

Comment()

10:25 AM - 10:40 AM JST(1:25 AM - 1:40 AM UTC)

[3H03]Evaluation of hydrogen behavior in lower level of BWR reactor building during severe accidents(4) Clarification of treatment of ceiling cavity in evaluation

Kunihiro Tomita¹, Kazumasa Inomata¹, Satoshi Mizuno², *Ryoichi Goto², Kimitoshi Yoneda³, Yoshihisa Nishi³, Tomohisa Yuasa³, Miki Saito³, Ryo Morita³ (1. ATENA, 2. TEPCO HD, 3. CRIEPI)

Comment()

10:40 AM - 10:55 AM JST(1:40 AM - 1:55 AM UTC)

[3H04]Evaluation of hydrogen behavior in lower level of BWR reactor building during severe accidents(5) Construction of simplified evaluation flow chart

*Kimitoshi Yoneda¹, Tomohisa Yuasa¹, Miki Saito¹, Yoshihisa Nishi¹, Ryo Morita¹, Kunihiro Tomita², Kazumasa Inomata², Satoshi Mizuno³, Ryoichi Goto³ (1. CRIEPI, 2. ATENA, 3. TEPCO HD)

Comment()

10:55 AM - 11:10 AM JST(1:55 AM - 2:10 AM UTC)

[3H05]Evaluation of hydrogen behavior in lower level of BWR reactor building during severe accidents(6) Development of machine learning model for hydrogen concentration distribution at ceiling area

*Tomohisa Yuasa¹, Miki Saito¹, Kimitoshi Yoneda¹, Yoshihisa Nishi¹, Ryo Morita¹, Kunihiro Tomita², Kazumasa Inomata², Satoshi Mizuno³, Ryoichi Goto³ (1. CRIEPI, 2. ATENA, 3. TEPCO HD)

Comment()

11:10 AM - 11:25 AM JST(2:10 AM - 2:25 AM UTC)

[3H06]Study of the applicability of PAR installed in PCV for BWRs(4)Overall development status

*AKIRA TSUYUKI¹, MOTOSHIGE YAGYU¹, YOSHIRO NISHIOKA¹, YOSHIHIRO KOJIMA¹, KOICHI MURAMATSU¹, HIROFUMI OKABE¹ (1. TOSHIBA ESS)

Comment()

11:25 AM - 11:40 AM JST(2:25 AM - 2:40 AM UTC)

[3H07]Study of the applicability of PAR installed in PCV for BWRs(5) Oxygen Removal Evaluation of Wet-Well Installed PAR

*Yoshiro Nishioka¹, Akira Tsuyuki ¹, Yoshihiro Kojima¹, Mika Tahara¹ (1. TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATION)

Comment()

11:40 AM - 11:55 AM JST(2:40 AM - 2:55 AM UTC)

Time reserved for Chair

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