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Matsui, Kunihiro; Koizumi, Norikiyo; Nunoya, Yoshihiko; Nabara, Yoshihiro; Isono, Takaaki; Hamada, Kazuya; Oshikiri, Masayuki; Seki, Shuichi*; Uno, Yasuhiro*
no journal, ,
no abstracts in English
Isono, Takaaki; Koizumi, Norikiyo; Nunoya, Yoshihiko; Matsui, Kunihiro; Okuno, Kiyoshi
no journal, ,
no abstracts in English
Takayanagi, Tadatoshi*; Kuno, Kazuo*; Hasegawa, Mitsuru*; Koizumi, Norikiyo; Nakajima, Hideo; Hamada, Kazuya; Nunoya, Yoshihiko; Okuno, Kiyoshi
no journal, ,
no abstracts in English
Koizumi, Norikiyo; Nakajima, Hideo; Matsui, Kunihiro; Isono, Takaaki; Hamada, Kazuya; Nunoya, Yoshihiko; Nabara, Yoshihiro; Oshikiri, Masayuki; Okuno, Kiyoshi; Takayanagi, Tadatoshi*; et al.
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no abstracts in English
Sakai, Masahiro*; Hirano, Yoshihiko*; Nakamoto, Kazunari*; Senda, Ikuo*; Koizumi, Norikiyo; Isono, Takaaki; Matsui, Kunihiro; Nabara, Yoshihiro; Okuno, Kiyoshi
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no abstracts in English
Takahashi, Yoshikazu; Yoshida, Kiyoshi; Nabara, Yoshihiro; Edaya, Masahiro*
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The ITER TF coil system consists of 18 D-shape coils. The operating current and the maximum field are 68 kA and 11.8 T, respectively. A Nb
Sn cable-in-conduit conductor is used, with a cooling length of about 380 m. The overall thermohydraulic conditions for the analysis were simulated by the full-scale quasi 3-D code (VINCENTA). Analysis of quench of the TF conductor was carried out by using the 1-D electric and thermohydraulic simulation code (Gandalf). An interface is written between these codes. The temperature and voltage distributions during a quench were estimated. The 2-D analysis code (ANSYS) was used to simulate the heat transfer from the conductor to the radial plates during a quench. The results show that the maximum temperature in the conductor during quench is about 150K, if a quench can be detected with a voltage of 0.2 V. These results conclude that the TF coils will be discharged without any damage, even if an unexpected quench occurs.
Al CIC conductorKizu, Kaname; Ando, Toshinari*; Tsuchiya, Katsuhiko; Shimada, Katsuhiro; Matsukawa, Makoto; Tamai, Hiroshi; Koizumi, Norikiyo; Okuno, Kiyoshi; Nishimura, Arata*; Hishinuma, Yoshimitsu*; et al.
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no abstracts in English
Machiya, Shutaro; Osamura, Kozo*; Suzuki, Hiroshi; Ayai, Naoki*; Hayashi, Kazuhiko*; Sato, Kenichi*; Kato, Takeshi*
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no abstracts in English
Sn strand subjected to bending strainMurakami, Haruyuki*; Ueda, Hiroshi*; Ishiyama, Atsushi*; Koizumi, Norikiyo; Okuno, Kiyoshi
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no abstracts in English