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Tezuka, Masashi; Nakamura, Yasuyuki; Iwai, Hiroki; Sano, Kazuya
JAEA-Technology 2015-047, 114 Pages, 2016/03
It was reported that Fukushima Daiichi Nuclear Power Plant had been lost the function of cooling the reactor by the Tohoku Earthquake. It is assumed that the original shapes of the internal core are not kept and the inside of the reactor makes so narrow in the space, however the fuel debris and the molten internal core will have to be removed for the decommissioning of 1F. We concerned the suppression of dross by optimization of cutting conditions, in using some moderated test pieces. And we can improve the cutting capability by heating the objects in advance. Moreover, it's possible that plasma arc cutting can cut off the mixed material the fuel debris and the molten internal core by using the cooperation cutting technique both the plasma arc and the plasma jet cutting. From these results, we have got the prospect that plasma cutting method can apply the removal of the fuel debris and the molten internal core.
; Tachibana, Mitsuo; Yanagihara, Satoshi
Proceedings of 7th International Conference on Nuclear Engineering (ICONE-7) (CD-ROM), 9 Pages, 1999/00
no abstracts in English
;
Doryoku, Enerugi Gijutsu No Saizensen : Doryoku, Enerugi Gijutsu Shimpojiumu Koen Rombunshu 1996, 0, p.355 - 359, 1996/00
no abstracts in English
Seimiya, Hiroshi; Yamada, Kazuo; Kuroha, Mitsuhiko; Saito, Makoto; Tomikawa, Hirofumi; Saito, Toru*; Hagiya, Shinichi*
PNC TN8410 90-082, 90 Pages, 1990/09
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