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Department of Nuclear Energy System
JAERI-Review 2003-004, 236 Pages, 2003/03
JAERI-Review-2003-004.pdf:16.34MB
This report summarizes the research and development activities in the Department of Nuclear Energy System during the fiscal year of 2001 (April 1, 2001 - March 31, 2002). The Department has been organized from April 1998. The main research activity is aimed to build the basis of the development of future nuclear energy systems. The research activities of the Department cover basic nuclear data evaluation, conceptual design of a reduced-moderation water reactor, reactor physics experiments and development of the reactor analysis codes, experiment and analysis of thermal-hydrodynamics, energy system analysis and assessment, development of advanced materials for a reactor, lifetime reliability assessment on structural material, development of advanced nuclear fuel, design of a marine reactor and the research for a nuclear ship system. The maintenance and operation of reactor engineering facilities belonging to the Department are undertaken. The activities of the research committees to which the Department takes a role of secretariat are also summarized in this report.
Department of Nuclear Energy System
JAERI-Review 2002-005, 280 Pages, 2002/03
JAERI-Review-2002-005.pdf:18.05MB
no abstracts in English
Ura, Tamaki*; Takamasa, Tomoji*; Nishimura, Hajime*; Aoki, Taro*; Ueno, Michio*; Maeda, Toshio*; Nakamura, Masato*; Shimazu, Shunsuke*; Tokunaga, Sango*; Shibata, Yozo*; et al.
JAERI-Tech 2001-049, 154 Pages, 2001/07
JAERI-Tech-2001-049.pdf:11.24MB
JAERI has studied on design and operation of a nuclear powered submersible research vessel, which will navigate under sea in the Arctic Ocean, as a part of the design study of advanced marine reactors. This report describes operation conditions and an operating system of the vessel those were discussed by the specialists of hull design, sound positioning, ship motions and oceanography, etc. The design conditions on ship motions for submersible vessels were surveyed considering regulations in our country, and ship motions were evaluated assuming the observation activities in the Arctic Ocean. A submarine transponder system and an on ice communication buoy system were examined as a positioning and communication system supposing the activity under ice. Procedures to secure safety of nuclear powered submersible research vessel were discussed based on the investigation of accidents. These results were reflected to the concept of the nuclear powered submersible research vessel, and subjects fto be settled in the next step were clarified.
Department of Nuclear Energy System
JAERI-Review 2001-010, 322 Pages, 2001/03
JAERI-Review-2001-010.pdf:27.21MB
no abstracts in English
Department of Nuclear Energy System
JAERI-Review 99-031, p.320 - 0, 2000/01
JAERI-Review-99-031.pdf:16.21MB
no abstracts in English
JAERI-Review 98-022, 265 Pages, 1998/11
JAERI-Review-98-022.pdf:12.29MB
no abstracts in English
JAERI-Review 97-011, 338 Pages, 1997/10
JAERI-Review-97-011.pdf:11.71MB
no abstracts in English
JAERI-Review 96-012, 292 Pages, 1996/09
JAERI-Review-96-012.pdf:9.91MB
no abstracts in English
March 31, 1995JAERI-Review 95-014, 289 Pages, 1995/09
JAERI-Review-95-014.pdf:9.71MB
no abstracts in English
March 31, 1994JAERI-Review 94-009, 333 Pages, 1994/11
JAERI-Review-94-009.pdf:10.37MB
no abstracts in English
March 31, 1993JAERI-M 93-181, 247 Pages, 1993/09
no abstracts in English
March 31, 1992JAERI-M 92-125, 259 Pages, 1992/08
no abstracts in English
March 31, 1991JAERI-M 91-138, 262 Pages, 1991/09
no abstracts in English
March 31, 1990JAERI-M 90-149, 330 Pages, 1990/09
no abstracts in English
JAERI-M 89-128, 257 Pages, 1989/09
no abstracts in English
Asayama, Tai
no journal, ,
This paper presents a future vision for safety and structural code development for advanced non-light water reactors. The most important feature that these codes and standards should have is that they ensure that safety goals are met in the way most appropriate and practical to the characters of new reactors which could be significantly different from those of light water ones. For this purpose, the author proposes a universal structure which consists of goals, codes and standards and knowledge base. The goals will be defined in terms of safety, reliability and economy. Codes and standards will form a seamless structure which provides multiple pathways with intermediary targets that correlate the goals and candidate technical options for structure and component design. Margins will be allocated in a plant lifecycle utilizing the System Based Code Concept. Knowledge bases will support codes and standards and allows for timely technical updates. As a future vision, a concept of digitalized autonomous code in which autonomous technical updates of provisions are realized is presented.