Shibahara, Yuji; Usui, Hideo; Izumo, Sari; Izumi, Masanori; Tezuka, Masashi; Morishita, Yoshitsugu; Kiyota, Shiko; Tachibana, Mitsuo
Nihon Genshiryoku Gakkai Wabun Rombunshi, 12(3), p.197 - 210, 2013/09
As the first step of the applicability inspection of PRODIA Code for dismantling activities in the decommissioning of FUGEN, manpower needs for dismantling activities in FUGEN conducted in 2008 were calculated with conventional calculation formulas which were made by data obtained from JPDR decommissioning program. Since the conventional calculation formula for dismantling of feedwater heater has no applicability, the new calculation formula was constructed by reflecting the work description of dismantling of feedwater heater in FUGEN. It was found that the calculation results with this new formula showed the good agreement with the actual data both of 3rd feedwater heater and 4th one. Based on this discussion, some case studies for dismantling of feedwater heater were conducted.
Sano, Kazuya; Kitamura, Koichi; Tezuka, Masashi; Mizui, Hiroyuki; Kiyota, Shiko; Morishita, Yoshitsugu
Proceedings of 16th Pacific Basin Nuclear Conference (PBNC-16) (CD-ROM), 6 Pages, 2008/10
The operation of Advanced Thermal Reactor Fugen was terminated on Mar. 29th, 2003. After the operation, the preparative works and R&D have been conducted strenuously for the planning of the rational and safe decommissioning. The decommissioning program for Fugen was planed, based on the results of above works and R&D, and was applied to the government as a first case under the revised nuclear reactor regulation law. As a result, the program was approved on Feb. 12th, 2008. In this paper, the decommissioning program for Fugen was outlined, which are the dismantling process consists of four periods; (1) Spent fuel transportation, (2) Periphery facilities dismantlement, (3) Reactor dismantlement and (4) Building demolition, the amount of radioactive waste, the safety assessment etc.
Ijima, Takashi; Kiyota, Shiko; Miyamoto, Hisami; KANEHIRA, Yoshiki
JNC TN4410 2004-008, 49 Pages, 2004/10
; Tajiri, Tsuyochi; Kiyota, Shiko
Proceedings of 12th International Conference on Nuclear Engineering (ICONE-12) (CD-ROM), 0 Pages, 2003/00
The development of decommissioning for Fugen is divided into two areas. One area is development of unique technology for dismantling special components such as the reactor core and the heavy water system. Another area is improvement and enhancement of existing technologies. Especially the former area requires effort and comprises development of the reactor dismantlement, tritium decontamination of heavy water system and engineering support systems.
Kiyota, Shiko; Kitabata, Takuya; Ninomiya, Ryuji*; Senrui, Shiro*; Isomura, Shohei*
Proceedings of International Conference on Global Environment and Advanced Nuclear Power Plants (GENES4/ANP 2003) (Internet), 7 Pages, 2003/00
; Kitabata, Takuya; Kiyota, Shiko; Iguchi, Yukihiro; Tajiri, Tsuyoshi
Saikuru Kiko Giho, (20), 151 Pages, 2003/00
Based on the report titled "Activities of Fugen NPS after permanent shutdown" , Fugen has been preparing for the project, including necessary development of technologies. The development of decommissioning for Fugen is divided into two areas.
no journal, ,
Current status of Fugen decommissioning project
Tajiri, Tsuyoshi; Kiyota, Shiko; Hayashi, Hirokazu; Koda, Yuya
no journal, ,
An abolition measure is introduced in the "radioactive waste engineering" lecture in Fukui University of Technology. The situation of the abolition measure of a nuclear power plant, the abolition measure plan of "Fugen", and the abolition measure of "Fugen" is entitled, and a lecture is performed 3 times. The 1st time: The system of an abolition measure, the outline of technical 2nd: "Fugen" which is needed for the track record abolition measure of an abolition measure in and outside the country, The outline of the abolition measure plan of "Fugen", residual-radioactivity evaluation, the 3rd time of safety evaluation: The principal technologies in an abolition measure, system decontamination, remote-dismantling technology of a nuclear reactor main part, technology applied to the abolition measure of "Fugen" with the situation
no journal, ,
no abstracts in English