[2D11-17] Fuel Debris 3 | 2025 Fall Meeting

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Session Details

Oral presentationV. Nuclear Fuel Cycle and Nuclear Materials : 505-3 Decommissioning Technology of Nuclear Facilities

[2D11-17]Fuel Debris 3

Thu. Sep 11, 2025 2:45 PM - 4:45 PM JST
Thu. Sep 11, 2025 5:45 AM - 7:45 AM UTC

Room D(Kitakyushu International Conference Center2F Meeting Room 21)

Chair:Yukihiro IGUCHI(Univ. of Fukui)

2:45 PM - 3:00 PM JST(5:45 AM - 6:00 AM UTC)

[2D11]Assessment of dust dispersion data for future safety analysis of Fukushima Daiichi fuel debris retrieval(17) Overview of research in the second phase, from JFY2023 to 2024

*Koichi Uozumi¹, Tadafumi Koyama¹, Kinya Nakamura¹, Taizo Kanai¹, Yuichi Iwata², Takeshi Yokoyama³, Seiji Yoshimura⁴, Muneyuki Nakada⁵, Masahide Takano⁶, Yuji Kitsunai⁷ (1. CRIEPI, 2. TEPCO HD, 3. MHI, 4. IHI, 5. HGNE, 6. JAEA, 7. NFD)

Comment()

3:00 PM - 3:15 PM JST(6:00 AM - 6:15 AM UTC)

[2D12]Assessment of dust dispersion data for future safety analysis of Fukushima Daiichi fuel debris retrieval(18) Development of a Measurement Method for Dust Dispersion in Wet Cutting

*Taizo Kanai¹, Shun Kanagawa¹, Tadafumi Koyama¹, Koichi Uozumi¹, Kinya Nakamura¹, Yuichi Iwata², Totsuka Fumio², Kazutaka Mogi², Daisuke Yamauchi², Takeshi Honda² (1. CRIEPI, 2. TEPCO HD)

Comment()

3:15 PM - 3:30 PM JST(6:15 AM - 6:30 AM UTC)

[2D13]Assessment of dust dispersion data for future safety analysis of Fukushima Daiichi fuel debris retrieval(19) Measurement of dust dispersion data during cutting with chisel in air and under water

*Yoshikazu Yamamoto¹, Koichi Uozumi¹, Taizo Kanai¹, Shun Kanagawa¹, Tadafumi Koyama¹, Kinya Nakamura¹, Takatoshi Hijikata¹, Tetsuya Kato¹, Yuichi Iwata², Fumio Totsuka² (1. CRIEPI, 2. TEPCO HD)

Comment()

3:30 PM - 3:45 PM JST(6:30 AM - 6:45 AM UTC)

[2D14]Assessment of dust dispersion data for future safety analysis of Fukushima Daiichi fuel debris retrieval(20) Measurement of dust dispersion data during cutting with disk cutter in air and under water

*Masahiro Ota¹, Yoshihiro Kondo¹, Kei Higashi¹, Taiki Asahara¹, Tetsuro Matsunaga ¹, Takeshi Yokoyama¹, Taizo Kanai², Koichi Uozumi², Tadafumi Koyama², Kinya Nakamura² (1. MHI, 2. CRIEPI)

Comment()

3:45 PM - 4:00 PM JST(6:45 AM - 7:00 AM UTC)

[2D15]Assessment of dust dispersion data for future safety analysis of Fukushima Daiichi fuel debris retrieval(21) Measurement of dust dispersion data during cutting with core boring in air and under water

*Seiji Yoshimura¹, Tomoe Takahashi¹, Daisuke Tsunoda¹, Koichi Uozumi², Taizo Kanai², Tadafumi Koyama², Kinya Nakamura², Shun Kanagawa², Yuichi Iwata³, Fumio Totsuka³ (1. IHI, 2. CRIEPI, 3. TEPCO)

Comment()

4:00 PM - 4:15 PM JST(7:00 AM - 7:15 AM UTC)

[2D16]Assessment of dust dispersion data for future safety analysis of Fukushima Daiichi fuel debris retrieval(22) Measurement of dust dispersion data during cutting with laser in air and under water

*Tomohiro Sugino¹, Naoyuki Matsumoto¹, Seiji Yoshimura¹, Keita sano¹, Daisuke Tsunoda¹, Koichi Uozumi², Taizo Kanai², Tadafumi Koyama², Kinya Nakamura², Fumio Totsuka³ (1. IHI Corporation, 2. Central Research Institute of Electric Power Industry, 3. Tokyo Electric Power Company Holdings, Inc.)

Comment()

4:15 PM - 4:30 PM JST(7:15 AM - 7:30 AM UTC)

[2D17]Assessment of dust dispersion data for future safety analysis of Fukushima Daiichi fuel debris retrieval(23) Measurement of dust dispersion data during cutting with AWJ - Basic experiments

*Atsushi NODA¹, Muneyuki Nakada¹, Koichi Uozumi², Taizo Kanai², Tadafumi Koyama², Kinya Nakamura², Yuichi Iwata³, Fumio Totsuka³, Kazutaka Mogi^3,4, Daisuke Yamauchi^3,5 (1. Hitachi GE Vernova, 2. CRIEPI, 3. TEPCO HD, 4. MHI, 5. NDF)

Comment()

4:30 PM - 4:45 PM JST(7:30 AM - 7:45 AM UTC)

Time reserved for Chair

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