Oral presentation

V. Nuclear Fuel Cycle and Nuclear Materials » 505-3 Decommissioning Technology of Nuclear Facilities

[1F14-19] Fuel Debris 3

Wed. Sep 6, 2023 4:20 PM - 6:00 PM Room F (Okuma Machine Tool Eng. Bildg. 2F Lecture Room)

Chair:Tatsuya Suzuki(Nagaoka Univ. of Tech.)

4:20 PM - 4:35 PM

[1F14] Assessment of dust dispersion data for future safety analysis of Fukushima Daiichi fuel debris retrieval

(9) Measurement of dust dispersion data during cutting uranium oxide fuel debris with disk cutter

*Akihiro Suzuki¹, Yuji Kitsunai¹, Yoshiyuki Kawaharada², Hideki Nakamura², Masaki Yoda², Kinya Nakamura³, Taizo Kanai³, Koichi Uozumi³, Kenta Inagaki³, Tadafumi Koyama³ (1. NFD, 2. TOSHIBA ESS, 3. CRIEPI)

4:35 PM - 4:50 PM

[1F15] Assessment of dust dispersion data for future safety analysis of Fukushima Daiichi fuel debris retrieval

(10) Characterization of once-molten kg-scale fuel debris simulants containing uranium

*Kinya Nakamura Nakamura¹, Koichi Uozumi¹, Tadafumi Koyama¹, Taizo Kanai¹, Shun Kanagawa¹, Takatoshi Hijikata¹, Tetsuya Kato¹, Daisuke Yamauchi², Kazutaka Mogi², Yuichi Iwata² (1. CRIEPI, 2. TEPCO)

4:50 PM - 5:05 PM

[1F16] Assessment of dust dispersion data for future safety analysis of Fukushima Daiichi fuel debris retrieval

(11) Measurement of dust dispersion data during cutting kg-scale fuel debris simulants containing uranium with disk cutter

*Shun Kanagawa¹, Kinya Nakamura¹, Taizo Kanai¹, Koichi Uozumi¹, Tadafumi Koyama¹, Kenta Inagaki¹, Michiya Sasaki¹, Takatoshi Hijikata¹, Tetsuya Kato¹, Daisuke Yamauchi² (1. CRIEPI, 2. TEPCO HD)

5:05 PM - 5:20 PM

[1F17] Assessment of dust dispersion data for future safety analysis of Fukushima Daiichi fuel debris retrieval

(12) Study of methodorogy to estimate Airborne Release Fraction for cutting actual fuel debris

*Tadafumi Koyama¹, Kinya Nakamura¹, Koichi Uozumi¹, Tanzo Kanai¹, Shun Kanagawa¹, Takatoshi Hijikata¹, Tetsuya Kato¹, Daisuke Yamauchi², Kazutaka Mogi², Yuichi Iwata² (1. CRIEPI, 2. TEPCO)

5:20 PM - 5:35 PM

[1F18] Assessment of dust dispersion data for future safety analysis of Fukushima Daiichi fuel debris retrieval

(13) Development of a model to simulate dispersion behavior of dust with non-spherical shapes.

*Kenta Inagaki¹, Tadafumi Koyama¹, Koichi Uozumi¹, Taizo Kanai¹, Kinya Nakamura¹, Shun Kanagawa¹, Tetsuya Kato¹, Yamauchi Daisuke ², Kazutaka Mogi², Yuichi Iwata² (1. CRIEPI, 2. TEPCO HD)

5:35 PM - 5:50 PM

[1F19] Assessment of dust dispersion data for future safety analysis of Fukushima Daiichi fuel debris retrieval

(14) Basic study of safety assessment regarding airborne dust release during fuel debris retrieval

*Michiya Sasaki¹, Tadafumi Koyama¹, Takatoshi Hattori², Koichi Uozumi¹, Kinya Nakamura¹, Taizo Kanai¹, Kenta Inagaki¹, Shun Kanagawa¹, Takatoshi Hijikata¹, Tetsuya Kato¹ (1. CRIEPI, 2. NDF)

Time reserved for Chair (5:50 PM - 6:00 PM)

Session information