Derivation of an approximate analytical solution for understanding the response characteristics of the EBS

T. Ohi, T. Chiba, T. Nakagawa, T. Takase, T. Nakazawa, Y. Akagi, Kazuya Idemitsu

研究成果: 著書/レポートタイプへの貢献会議での発言

1 引用 (Scopus)

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To perform a safety assessment for the geological disposal of radioactive waste, it is important to understand the response characteristics of the disposal system. In this study, approximate analytical solutions for steady-state nuclide releases from the engineered barrier system (EBS) of a repository were derived for an orthogonal one-dimensional diffusion model. In these approximate analytical solutions, inventory depletion, decay during migration and the influence of groundwater flow in the excavation damaged zone (EDZ) were considered. These solutions were simplified by the Taylor theorem in order to clearly represent the response characteristics of the EBS. The validity of these solutions was shown by comparison with numerical solutions. The response characteristics of the EBS are useful for identifying target values for important parameters that would have the effect of improving the robustness of system safety. The robustness of the geological disposal system and the reliability of the safety assessment can thus potentially be improved using the approximate analytical solutions.

元の言語英語
ホスト出版物のタイトルScientific Basis for Nuclear Waste Management XXXV
ページ341-348
ページ数8
DOI
出版物ステータス出版済み - 12 1 2012
イベント2012 MRS Spring Meeting - San Francisco, CA, 米国
継続期間: 4 9 20124 13 2012

出版物シリーズ

名前Materials Research Society Symposium Proceedings
1475
ISSN(印刷物)0272-9172

その他

その他2012 MRS Spring Meeting
米国
San Francisco, CA
期間4/9/124/13/12

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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  • これを引用

    Ohi, T., Chiba, T., Nakagawa, T., Takase, T., Nakazawa, T., Akagi, Y., & Idemitsu, K. (2012). Derivation of an approximate analytical solution for understanding the response characteristics of the EBS. : Scientific Basis for Nuclear Waste Management XXXV (pp. 341-348). (Materials Research Society Symposium Proceedings; 巻数 1475). https://doi.org/10.1557/opl.2012.597