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Nomura, Yasushi; Takada, Tomoyuki; Kadotani, Hiroyuki*; Kuroishi, Takeshi
JAERI-Tech 2003-020, 88 Pages, 2003/03
JAERI-Tech-2003-020.pdf:4.31MB
no abstracts in English
Aihara, Nagafumi; Fukumura, Nobuo; Kadotani, Hiroyuki*; Hachiya, Yuki
Nuclear Science and Engineering, 109, p.158 - 170, 1991/00
Times Cited Count：4 Percentile：47.84(Nuclear Science & Technology)None
Kadotani, Hiroyuki*; Hachiya, Yuki*; *
PNC TN941 75-59, 37 Pages, 1975/05
Fuel temperature coefficients of reactivity have been analysed for DCA core with a central channel of raised temperature. The present model for the analysis of the experiment is based on the following two considerations ;(1)a large difference of nuclear characteristics between the central channel that is made of stainless steel and the outer channels of aluminum in the driver region, (2)a slight change in neutron temperature of the high temperature region where there is no moderating material. Fuel temerature coefficients of reactivity obtained by the present analysis and the experimental results are listed in the following table. [Table Temperature coefficient of reactivity in two-region (central test channel and l.2% UO
driver channels) core] The present analysis explains successfully the qualitative features of the experiment, including dependencies of temperature coefficients on fuel enrichment and temperature range, and the linear coefficient of cladding material. The quantitative agreement, however, is not so good except for l,5% UO fuel.
Imaizumi, Tomomi; Kadotani, Hiroyuki*; Okumura, Keisuke; Katakura, Junichi; Nagao, Yoshiharu
no journal, ,
no abstracts in English
