Study on hydrogen isotopes permeation in fluidized state of liquid lithium-lead

Shunsuke Yoshimura, Ryosuke Yoshimura, Makoto Okada, Satoshi Fukada, Yuki Edao

研究成果: ジャーナルへの寄稿記事

3 引用 (Scopus)

抄録

Hydrogen transfer under a fluidized condition of Li-Pb is investigated experimentally to design a Li-Pb blanket system. Li-Pb eutectic alloy flows through inside of a Ni tube in the experimental system, where H2 permeates into and out of the forced Li-Pb flow. The overall H2 permeation rate is analyzed using a mass balance model. Hydrogen atoms diffuse in Ni and Li-Pb. The steady-state H2 permeation rate obtained by this experiment is smaller than the result of the calculation model. A resistance factor is introduced to the present analysis in order to evaluate the influence of other H2 transfer mechanisms, such as diffusion in Li-Pb and dissolution reaction between Ni and Li-Pb. The contribution of the resistance to the overall H2 permeation rate becomes large when the flow rate of Li-Pb is low. This is because the boundary layer thickness between Ni and Li-Pb affects the overall H2 permeation rate. When the flow velocity of Li-Pb is large, the thickness of the boundary layer becomes thin, and the driving force of H2 permeation through Ni wall becomes large.

元の言語英語
ページ(範囲)658-661
ページ数4
ジャーナルFusion Science and Technology
67
発行部数3
DOI
出版物ステータス出版済み - 4 1 2015

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liquid lithium
hydrogen isotopes
Lithium
Permeation
Isotopes
Hydrogen
Lead
Liquids
flow velocity
Boundary layers
eutectic alloys
boundary layer thickness
blankets
mass balance
R Factors
boundary layers
hydrogen atoms
dissolving
Flow velocity
Eutectics

All Science Journal Classification (ASJC) codes

  • Civil and Structural Engineering
  • Nuclear and High Energy Physics
  • Nuclear Energy and Engineering
  • Materials Science(all)
  • Mechanical Engineering

これを引用

Study on hydrogen isotopes permeation in fluidized state of liquid lithium-lead. / Yoshimura, Shunsuke; Yoshimura, Ryosuke; Okada, Makoto; Fukada, Satoshi; Edao, Yuki.

:: Fusion Science and Technology, 巻 67, 番号 3, 01.04.2015, p. 658-661.

研究成果: ジャーナルへの寄稿記事

Yoshimura, S, Yoshimura, R, Okada, M, Fukada, S & Edao, Y 2015, 'Study on hydrogen isotopes permeation in fluidized state of liquid lithium-lead', Fusion Science and Technology, 巻. 67, 番号 3, pp. 658-661. https://doi.org/10.13182/FST14-T104
Yoshimura, Shunsuke ; Yoshimura, Ryosuke ; Okada, Makoto ; Fukada, Satoshi ; Edao, Yuki. / Study on hydrogen isotopes permeation in fluidized state of liquid lithium-lead. :: Fusion Science and Technology. 2015 ; 巻 67, 番号 3. pp. 658-661.
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abstract = "Hydrogen transfer under a fluidized condition of Li-Pb is investigated experimentally to design a Li-Pb blanket system. Li-Pb eutectic alloy flows through inside of a Ni tube in the experimental system, where H2 permeates into and out of the forced Li-Pb flow. The overall H2 permeation rate is analyzed using a mass balance model. Hydrogen atoms diffuse in Ni and Li-Pb. The steady-state H2 permeation rate obtained by this experiment is smaller than the result of the calculation model. A resistance factor is introduced to the present analysis in order to evaluate the influence of other H2 transfer mechanisms, such as diffusion in Li-Pb and dissolution reaction between Ni and Li-Pb. The contribution of the resistance to the overall H2 permeation rate becomes large when the flow rate of Li-Pb is low. This is because the boundary layer thickness between Ni and Li-Pb affects the overall H2 permeation rate. When the flow velocity of Li-Pb is large, the thickness of the boundary layer becomes thin, and the driving force of H2 permeation through Ni wall becomes large.",
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