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Journal Articles

Decommissioning project feedback experience in the Japan Atomic Energy Research Institute

Yanagihara, Satoshi; Tachibana, Mitsuo; Miyajima, Kazutoshi

Proceedings of International Conference; Decommissioning Challenges (CD-ROM), 8 Pages, 2003/00

Several decommissioning projects are on going and studies on decommissioning issues are in progress in JAERI. The JPDR and JRTF decommissioning projects have been set up as demonstration programs for future decommissioning large nuclear facilities. Therefore, efforts have been made not only to dismantle the facilities but also to collect data and lessons learnt on dismantling activities. The data and lessons learnt have been analyzed to produce the database for future decommissioning projects by categorizing into manpower expenditure, radiation dose and waste generation in project data, and safety aspect, waste management, work efficiency considerations in lessons learnt. respectively. The feedback experience has been effectively contributed to various areas on decommissioning such as studies on regulatory systems and planning of other dismantling projects. This paper deals with decommissioning experience and lessons learned in JAERI.

JAEA Reports

Development of computer systems for planning and management of reactor decommissioning; A Study on influence of work difficulty factors on project management data and simplification of work breakdown structures (Contract research)

Oshima, Soichiro; Sukegawa, Takenori; Shiraishi, Kunio; Yanagihara, Satoshi

JAERI-Tech 2001-086, 83 Pages, 2001/12

JAERI-Tech-2001-086.pdf:5.23MB

Project management data on dismantling the Japan Power Demonstration Reactor (JPDR) was calculated using the Code System for Planning and Management of Reactor Decommissioning (COSMARD), and then its validity was studied by comparing the calculation results with actual data. In addition, work breakdown structure models and database were modified to meet an evaluation with changing work difficulty of preparation and cleanup activities, and calculations were further conducted to analyze feasibility by changing various conditions on cutting and conditioning activities. As the results, COSMARD was verified to be useful by confirming calculation capability on reflection of actual work conditions and relatively good agreement between actual data and calculations. Moreover, it was cleared that main parameters such as work difficulty of preparation and cleanup activities and the cutting speed in demolition work could affect to manpower within 30% in each calculations.

JAEA Reports

Data analysis on worker dose in dismantling of Japan Power Demonstration Reactor (JPDR) (Contract research)

Shiraishi, Kunio; Sukegawa, Takenori; Yanagihara, Satoshi

JAERI-Data/Code 2001-028, 86 Pages, 2001/11

JAERI-Data-Code-2001-028.pdf:6.31MB

The data on worker dose in dismantling of the Japan Power Demonstration Reactor (JPDR) was analyzed to characterize its features. It was appeared from the study that the collective dose to the workers was 306 man-mSv, in which maximum individual dose was 8.5 mSv, almost all doses were received in the activities for dismantling of reactor internals, the reactor pressure vessel and the biological shield, and that the worker dose distribution was similar to that in the maintenanee of the facilities which was characterized by the hybrid log normal distribution model. Farthermore, it was found that the dismantling activities were categorized into three groups depending on dose rates in workplaces, then contribution factors for radiation exposure in terms of dose rates in different groups were derived based on the analysis. The study would be useful for estimation of worker dose in future decommissioning of commercial nuclear power plants in Japan.

Journal Articles

Development of computer systems for planing and management of reactor decommissioning; Estimation of project management data on Dismantling Tokai Power Station

Yanagihara, Satoshi; Oshima, Soichiro; Sukegawa, Takenori; Tanabe, Norio*; Takaya, Junichi*; Kiuchi, Yoshio*; Yokota, Shuichi*

Nihon Genshiryoku Gakkai-Shi, 43(5), p.493 - 502, 2001/05

 Times Cited Count:1 Percentile:11.91(Nuclear Science & Technology)

no abstracts in English

Journal Articles

Development of computer systems for planning and management of reactor decommissioning

Yanagihara, Satoshi; Sukegawa, Takenori; Shiraishi, Kunio

Journal of Nuclear Science and Technology, 38(3), p.193 - 202, 2001/03

no abstracts in English

JAEA Reports

Data analysis on work activities in dismantling of Japan Powor Demonstration Reactor, JPDR (Contract research)

; Sukegawa, Takenori; Yanagihara, Satoshi

JAERI-Data/Code 98-010, 186 Pages, 1998/03

JAERI-Data-Code-98-010.pdf:7.12MB

no abstracts in English

Journal Articles

Systems engineering approach to planning of nuclear power plant decommissioning; Application of JPDR dismantling data to Tokai Power Station Decommissioning

Yanagihara, Satoshi; Sukegawa, Takenori; Tanabe, Norio*; Takaya, Junichi*

Proc. of SPECTRUM'98, p.269 - 274, 1998/00

no abstracts in English

Journal Articles

An Unsolved problem related to environment and recycling; For rational decommissioning of nuclear facilities

Yanagihara, Satoshi

Nihon Kikai Gakkai-Shi, 100(948), p.1174 - 1178, 1997/11

no abstracts in English

Journal Articles

Systems engineering approach to planning and evaluation of nuclear power plant decommissioning

Yanagihara, Satoshi; ; Sukegawa, Takenori; Tachibana, Mitsuo

Proc. of 5th Int. Conf. on Nucl. Eng. (ICONE-5)(CD-ROM), 6 Pages, 1997/00

no abstracts in English

Journal Articles

Systems engineering for decommissioning the Japan Power Demonstration Reactor(JPDR); A Study on characteristics of decommissioning waste

Yanagihara, Satoshi; ;

Proc. of the 1993 Int. Conf. on Nuclear Waste Management and Environmental Remediation,Vol. 3, p.423 - 431, 1993/00

no abstracts in English

Journal Articles

Systems engineering for decommissioning the Japan Power Demonstration Reactor

Yanagihara, Satoshi; ; ; Fujiki, Kazuo

1st JSME/ASME Joint Int. Conf. on Nuclear Engineering, p.65 - 70, 1991/00

no abstracts in English

Journal Articles

Estimating the costs for Japans JPDR project

Yanagihara, Satoshi; Tanaka, Mitsugu

Energy J., Vol. 12 (Special Issue), p.135 - 148, 1991/00

no abstracts in English

Journal Articles

Manpower requirements and development for the new 33-GW nuclear generation plan of Japan

Manpower Requirements and Development for Nuclear Power Programes, p.165 - 177, 1979/00

no abstracts in English

14 (Records 1-14 displayed on this page)
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