Steam generator with straight double-walled tube; Development of fabrication technologies of main structures made of high chrome steel-made

Kurome, Kazuya*; Kawamura, Masaya*; Enuma, Yasuhiro*; Tsujita, Yoshihiro*; Sato, Mitsuru*; Futagami, Satoshi; Hayafune, Hiroki

Proceedings of International Conference on Fast Reactors and Related Fuel Cycles (FR 2009) (CD-ROM), 11 Pages, 2012/00

http://www-pub.iaea.org/mtcd/meetings/PDFplus/2009/cn176/cn176_BoeS.pdf

Demonstration tests for manufacturing the ITER vacuum vessel

Shimizu, Katsusuke*; Onozuka, Masanori*; Usui, Yukinori*; Urata, Kazuhiro*; Tsujita, Yoshihiro*; Nakahira, Masataka; Takeda, Nobukazu; Kakudate, Satoshi; Omori, Junji; Shibanuma, Kiyoshi

Fusion Engineering and Design, 82(15-24), p.2081 - 2088, 2007/10

https://doi.org/10.1016/j.fusengdes.2007.08.015

To confirm the manufacturing and assembly process of the ITER vacuum vessel (VV), a series of related tests has been conducted. (1) Using a full-scale partial mock-up, fabrication methods are to be examined to determine feasibility. (2) To simulate a series of field-joint assembly operations, a test stand was built. (3) To provide an appropriate shield gas supply on the back side of the outer shell during field-joint welding, three types of back-seal structures have been tested. (4) The applicability of UT methods for volumetric inspection has been investigated. (5) Applicability of Liquid Penetrant Testing as a surface examination for the VV interior surface (i.e. ultra-vacuum side) has been investigated.

Design study of double wall straight tube steam generator, 2; Study on safety scenario

Ogumo, Shinya*; Tsujita, Yoshihiro*; Ando, Masato; Hori, Toru*; Hayafune, Hiroki

no journal, , 

Methodology of Na/water reaction avoidance was studied by mechanically bonded double wall tubes and the inspection of both inner and outer tubes during plant periodical inspections term.

Study on inspection and repair technologies toward the demonstration reactor of JSFR, 1; Project summary

Yamashita, Takuya; Ueda, Masashi; Yamaguchi, Toshihiko; Tagawa, Akihiro; Uemoto, Yohei*; Tsujita, Yoshihiro*

no journal, , 

We are studying in service inspection of JSFR in reactor vessel and steam generator tubes. This paper describes that development of under sodium inspection in reactor vessel.