Initialising ...
Initialising ...
Initialising ...
Initialising ...
Initialising ...
Initialising ...
Initialising ...
Zr near thresholdUtsunomiya, Hiroaki*; Goriely, S.*; Akimune, Hidetoshi*; Yamagata, Tamio*; Kondo, Takeo*; Iwamoto, Chihiro*; Ito, Osamu*; Kamata, Masaki*; Io, Masanori*; Kususe, Koichi*; et al.
AIP Conference Proceedings 1377, p.447 - 449, 2010/10
Times Cited Count：0 Percentile：0.05(Astronomy & Astrophysics)Furusawa, Takayuki; Sumita, Junya; Ueta, Shohei; Nemoto, Takahiro; Oyama, Sunao*; Kamata, Takashi
JAERI-Tech 2004-024, 46 Pages, 2004/03
JAERI-Tech-2004-024.pdf:6.75MB
Primary helium circulators of the HTTR are the important component as the helium gas which is reactor coolant, and three circulators for the primary pressurized water cooler and one for the intermediate heat exchanger are installed in primary cooling system. In the upstream of these circulators, the filter has been installed in order to suppress that it is entrapped in the bearing in which fine particles in helium gas, support main shaft of the helium circulator. The differential pressure of this filter rose gradually during rise-to-power test. The rise of the filter differential pressure of the helium circulator may cause the problem for reactor operation. Therefore, the filters were newly manufactured, and replacement of the filter was carried out. In replacement of the filter, appearance confirmation was carried out and deposit of the filter was analyzed. This paper described replacement of the filter and filter differential pressure rise investigation of the causes.
Takamatsu, Kuniyoshi; Nakazawa, Toshio; Furusawa, Takayuki; Homma, Fumitaka; Saito, Kenji; Kokusen, Shigeru; Kamata, Takashi; Ota, Yukimaru; Ishii, Yoshiki; Emori, Koichi
JAERI-Tech 2003-062, 94 Pages, 2003/06
JAERI-Tech-2003-062.pdf:26.47MB
no abstracts in English
Takeuchi, Shinji; Tsuruta, Tadahiko; Takeuchi, Ryuji; Nakamata, Kiminori; Mizuno, Takashi
no journal, ,
Pilot borehole investigations were carried out at Mizunami Underground Research Laboratory, Mizunami Japan to obtain informations on design on water treatment facility, planning the grouting and design URL. The investigations were conducted dut to the excess of F and B concentrations in discharged water in the river near the URL. Major results of the investigations will be introduced.
Takeuchi, Shinji; Hayano, Akira; Ikeda, Koki; Mikake, Shinichiro; Hara, Masato; Yamamoto, Masaru; Tsuruta, Tadahiko; Nakamata, Kiminori; Takeuchi, Ryuji; Saegusa, Hiromitsu; et al.
no journal, ,
The results from the pilot borehole investigations conducted at FY2006 at Mizunami Underground Research Laboratory are presented. The investigations are carried out to obtain various information for the planning of water treatment facility, planning for the grouting and revision for the construction design by understanding the geological environment below the excavating area. From the result of the investigations, important section of the inflow water and hydrochemical composition which should be treated in the water treatment facility have been obtained. Required informations on the planning for the future construction of MIU are addressed.
Tsuruta, Tadahiko; Ochi, Minoru; Yuguchi, Takashi; Tagami, Masahiko; Kakamu, Kazuhiko; Yoshida, Hidekazu*; Nishimoto, Shoji*; Nishiyama, Tadao*; Nakamata, Kiminori*
no journal, ,
no abstracts in English
