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Horiguchi, Naoki; Yoshida, Hiroyuki; Kitatsuji, Yoshihiro; Fukumori, Mai*; Hasegawa, Makoto*; Kishimoto, Tadafumi*
no journal, ,
A Li-7 enriched pH adjuster is essential for water quality control on PWRs. As the required Li-7 enrichment technology, we have developed the multi-channel counter-current electrophoresis (MCCCE) method. As a part of the development, we have developed a CFD simulation method to understand the behavior of ions. In this work, to clarify the effect of applied voltage on the behavior of ions in the enrichment device's channel, we conducted the numerical simulations of Li ions in the channel and examined the effect of applied voltage on the behavior. As a result, we confirmed that the ions pass through the channel easily under low applied voltage conditions and cannot pass through the channel under high applied voltage conditions.
Horiguchi, Naoki; Yoshida, Hiroyuki; Kitatsuji, Yoshihiro; Fukumori, Mai*; Hasegawa, Makoto*; Kishimoto, Tadafumi*
no journal, ,
A Li-7 enriched pH adjuster is essential for water quality control on PWRs. As the required Li-7 enrichment technology, we have developed the multi-channel counter-current electrophoresis (MCCCE) method. In this research, to understand the behavior of ions in the enrichment experiment, we developed a numerical simulation method of the long-time behavior of the ions based on the 3-dimensional field data of the electricity by commercial software and the flow by TPFIT-LPT. In this work, we applied it to the behavior of the ions in a simplified plate-type flow channel from the experimental one. Since the separation coefficient calculated from the simulation results of Li-7 and Li-6 ions agreed well with the experimental value, we confirmed the applicability of the method.