Analysis of diffusion and dissolution of two-component hydrogen (H + D) in lead lithium

Hiroaki Okitsu, Yuki Edao, Makoto Okada, Satoshi Fukada

研究成果: ジャーナルへの寄稿記事

8 引用 (Scopus)

抄録

A lead-lithium eutectic alloy (Pb-Li) is one of the most promising candidate materials for the liquid blanket of an advanced fusion reactor. We have experimentally determined mass-transfer properties by an unsteady permeation method, which data are necessary to design a system to recover tritium (T) from a Pb-Li blanket. An experiment of simultaneous H and D permeation through Li 17Pb 83 is performed to clarify interactions between atoms in the two-component permeation process. The experimental results are analyzed by a model of one-dimensional or two-dimensional permeation through Li 17Pb 83. The major permeation proceeds in the longitudinal direction of the present system, and the ratio of hydrogen leak in the radial direction is evaluated using the simulation. As a result, it was found that H and D atoms permeate independently regardless of the H/D component ratio within the present experimental conditions. The permeability and diffusivity of H are 1.4 times higher than that of D. The solubility of H is close to that of D. The isotope effect in diffusivity is in proportion to the square root of the mass ratio of D to H. When these data can be extended to the case of T, T permeability and diffusivity is predicted as 1/1.7 times lower than that of H in the temperature range from 773 K to 973 K.

元の言語英語
ページ(範囲)1324-1328
ページ数5
ジャーナルFusion Engineering and Design
87
発行部数7-8
DOI
出版物ステータス出版済み - 8 1 2012

Fingerprint

Lithium
Permeation
Hydrogen
Dissolution
Lead
Atoms
Tritium
Fusion reactors
Isotopes
Eutectics
Mass transfer
Solubility
Liquids
Experiments
Temperature
Direction compound

All Science Journal Classification (ASJC) codes

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

これを引用

Analysis of diffusion and dissolution of two-component hydrogen (H + D) in lead lithium. / Okitsu, Hiroaki; Edao, Yuki; Okada, Makoto; Fukada, Satoshi.

:: Fusion Engineering and Design, 巻 87, 番号 7-8, 01.08.2012, p. 1324-1328.

研究成果: ジャーナルへの寄稿記事

Okitsu, Hiroaki ; Edao, Yuki ; Okada, Makoto ; Fukada, Satoshi. / Analysis of diffusion and dissolution of two-component hydrogen (H + D) in lead lithium. :: Fusion Engineering and Design. 2012 ; 巻 87, 番号 7-8. pp. 1324-1328.
@article{8f4a4e35e1f94250a2393324e5bbde4d,
title = "Analysis of diffusion and dissolution of two-component hydrogen (H + D) in lead lithium",
abstract = "A lead-lithium eutectic alloy (Pb-Li) is one of the most promising candidate materials for the liquid blanket of an advanced fusion reactor. We have experimentally determined mass-transfer properties by an unsteady permeation method, which data are necessary to design a system to recover tritium (T) from a Pb-Li blanket. An experiment of simultaneous H and D permeation through Li 17Pb 83 is performed to clarify interactions between atoms in the two-component permeation process. The experimental results are analyzed by a model of one-dimensional or two-dimensional permeation through Li 17Pb 83. The major permeation proceeds in the longitudinal direction of the present system, and the ratio of hydrogen leak in the radial direction is evaluated using the simulation. As a result, it was found that H and D atoms permeate independently regardless of the H/D component ratio within the present experimental conditions. The permeability and diffusivity of H are 1.4 times higher than that of D. The solubility of H is close to that of D. The isotope effect in diffusivity is in proportion to the square root of the mass ratio of D to H. When these data can be extended to the case of T, T permeability and diffusivity is predicted as 1/1.7 times lower than that of H in the temperature range from 773 K to 973 K.",
author = "Hiroaki Okitsu and Yuki Edao and Makoto Okada and Satoshi Fukada",
year = "2012",
month = "8",
day = "1",
doi = "10.1016/j.fusengdes.2012.03.004",
language = "English",
volume = "87",
pages = "1324--1328",
journal = "Fusion Engineering and Design",
issn = "0920-3796",
publisher = "Elsevier BV",
number = "7-8",

}

TY - JOUR

T1 - Analysis of diffusion and dissolution of two-component hydrogen (H + D) in lead lithium

AU - Okitsu, Hiroaki

AU - Edao, Yuki

AU - Okada, Makoto

AU - Fukada, Satoshi

PY - 2012/8/1

Y1 - 2012/8/1

N2 - A lead-lithium eutectic alloy (Pb-Li) is one of the most promising candidate materials for the liquid blanket of an advanced fusion reactor. We have experimentally determined mass-transfer properties by an unsteady permeation method, which data are necessary to design a system to recover tritium (T) from a Pb-Li blanket. An experiment of simultaneous H and D permeation through Li 17Pb 83 is performed to clarify interactions between atoms in the two-component permeation process. The experimental results are analyzed by a model of one-dimensional or two-dimensional permeation through Li 17Pb 83. The major permeation proceeds in the longitudinal direction of the present system, and the ratio of hydrogen leak in the radial direction is evaluated using the simulation. As a result, it was found that H and D atoms permeate independently regardless of the H/D component ratio within the present experimental conditions. The permeability and diffusivity of H are 1.4 times higher than that of D. The solubility of H is close to that of D. The isotope effect in diffusivity is in proportion to the square root of the mass ratio of D to H. When these data can be extended to the case of T, T permeability and diffusivity is predicted as 1/1.7 times lower than that of H in the temperature range from 773 K to 973 K.

AB - A lead-lithium eutectic alloy (Pb-Li) is one of the most promising candidate materials for the liquid blanket of an advanced fusion reactor. We have experimentally determined mass-transfer properties by an unsteady permeation method, which data are necessary to design a system to recover tritium (T) from a Pb-Li blanket. An experiment of simultaneous H and D permeation through Li 17Pb 83 is performed to clarify interactions between atoms in the two-component permeation process. The experimental results are analyzed by a model of one-dimensional or two-dimensional permeation through Li 17Pb 83. The major permeation proceeds in the longitudinal direction of the present system, and the ratio of hydrogen leak in the radial direction is evaluated using the simulation. As a result, it was found that H and D atoms permeate independently regardless of the H/D component ratio within the present experimental conditions. The permeability and diffusivity of H are 1.4 times higher than that of D. The solubility of H is close to that of D. The isotope effect in diffusivity is in proportion to the square root of the mass ratio of D to H. When these data can be extended to the case of T, T permeability and diffusivity is predicted as 1/1.7 times lower than that of H in the temperature range from 773 K to 973 K.

UR - http://www.scopus.com/inward/record.url?scp=84865787610&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84865787610&partnerID=8YFLogxK

U2 - 10.1016/j.fusengdes.2012.03.004

DO - 10.1016/j.fusengdes.2012.03.004

M3 - Article

AN - SCOPUS:84865787610

VL - 87

SP - 1324

EP - 1328

JO - Fusion Engineering and Design

JF - Fusion Engineering and Design

SN - 0920-3796

IS - 7-8

ER -