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Ogiwara, Norio; Hikichi, Yusuke*; Kamiya, Junichiro; Kinsho, Michikazu; Yoshida, Hajime*; Arai, Kenta*
Journal of the Vacuum Society of Japan, 60(12), p.475 - 480, 2017/12
Suzuki, Motoe; Kusagaya, Kazuyuki*; Saito, Hiroaki*; Fuketa, Toyoshi
Journal of Nuclear Materials, 335(3), p.417 - 424, 2004/12
Times Cited Count:5 Percentile:35.2(Materials Science, Multidisciplinary)Experimental analysis was conducted on the Lift-Off experiment IFA-610.1 in Halden reactor by the FEMAXI-6 code using the detailed measured conditions of test-irradiation. Calculated fuel center temperatures on the two assumptions, i.e., (1) an enhanced thermal conductance across the pellet-clad bonding layer is maintained during the cladding creep-out by over-pressurization, and (2) the bonding layer is broken by the cladding creep-out, were compared with the measured data to analyze the effect of the creep-out by over-pressure inside the test pin. The measured center temperature rise was higher by a few tens of K than the prediction performed on the assumption (1), though this difference was much smaller than the predicted rise on the assumption (2). Therefore, it is appropriate to attribute the measured center temperature rise to the decrease of effective thermal conductance by irregular re-location of pellet fragments, etc. which was caused by cladding creep-out.
Iguchi, Tadashi; Shibamoto, Yasuteru; Asaka, Hideaki; Nakamura, Hideo
Proceedings of 10th International Topical Meeting on Nuclear Reactor Thermal Hydraulics (NURETH-10), 16 Pages, 2003/10
Thermal-hydraulic and neutronic dynamics are always interrelated in BWR core. This is called thermal-hydraulic and neutronic (T/N) coupling. Channel stability experiments with T/N coupling under non-nuclear condition are very limited. This is mainly due to the difficulties in the real-time simulation of neutron dynamics and in the fast-response void fraction measurement under high-pressure and temperature conditions. Authors have developed techniques to solve the above difficulties, and have succeeded in experimentally simulating T/N coupling under non-nuclear conditions with the THYNC facility. Using THYNC facility, T/N coupling effect on channel stability was investigated. Experiments were performed under Pressure=2-7MPa, Subcooling=10-40K, and Mass flux=270-660kg/ms. THYNC results indicated T/N coupling lowered the channel stability threshold. The reduction of channel stability threshold due to T/N coupling was small within 10% at 7MPa in the present THYNC experiment, although the experimental condition was set to be more severe than that supposed in a reactor.
Iguchi, Tadashi; Watanabe, Hironori; Kimura, Mamoru*; Anoda, Yoshinari
JAERI-Research 2001-032, 111 Pages, 2001/05
no abstracts in English
Iguchi, Tadashi
JAERI-Research 2000-050, 107 Pages, 2000/09
no abstracts in English
Suzuki, Motoe
JAERI-Data/Code 2000-030, 280 Pages, 2000/09
no abstracts in English
*; Ito, Takao; Usui, Katsutomi; Mogaki, Kazuhiko; Kuriyama, Masaaki; Sato, Fujio*; Oshima, Katsumi*; Omori, Kenichiro; Watanabe, Kazuhiro
JAERI-Tech 99-054, 49 Pages, 1999/07
no abstracts in English
Suzuki, Motoe; Saito, Hioraki*
JAERI-Data/Code 97-043, 235 Pages, 1997/11
no abstracts in English
*; *; Fujioka, T.*; *; Koizumi, Norikiyo; Ando, Toshinari; Tsuji, Hiroshi
IEEE Transactions on Applied Superconductivity, 7(2), p.215 - 218, 1997/06
Times Cited Count:5 Percentile:45.49(Engineering, Electrical & Electronic)no abstracts in English
Takeda, Takeshi; Kunitomi, Kazuhiko; *; *
Nucl. Eng. Des., 168, p.11 - 21, 1997/00
Times Cited Count:46 Percentile:93.78(Nuclear Science & Technology)no abstracts in English
; ; Hoshiya, Taiji
Journal of Nuclear Science and Technology, 28(10), p.961 - 964, 1991/10
no abstracts in English
Hoshiya, Taiji; ; *;
JAERI-M 89-199, 35 Pages, 1989/12
no abstracts in English
Tsuyuzaki, Noriyoshi; Saito, Takashi; *
JAERI-M 88-227, 12 Pages, 1988/11
no abstracts in English
Fujimoto, Nozomu; Maruyama, So; Fujii, Sadao*; Niguma, Yoshinoro*; Sudo, Yukio
JAERI-M 88-187, 79 Pages, 1988/10
no abstracts in English
; ; Murao, Yoshio
Journal of Nuclear Science and Technology, 23(4), p.315 - 325, 1986/00
Times Cited Count:3 Percentile:40.87(Nuclear Science & Technology)no abstracts in English
JAERI-M 84-063, 166 Pages, 1984/03
no abstracts in English
; ;
Journal of Nuclear Science and Technology, 19(6), p.469 - 481, 1982/00
no abstracts in English
*; ;
JAERI-M 8185, 120 Pages, 1979/03
no abstracts in English
*; ; ;
JAERI-M 7417, 30 Pages, 1977/12
no abstracts in English
;
JAERI-M 7278, 60 Pages, 1977/09
no abstracts in English