423. 高温ガス炉HTTRの冷却材中の化学的不純物特性

書誌事項

タイトル別名
  • Coolant Chemistry of the High Temperature Gas-Cooled Reactor 'HTTR'

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説明

Chemistry control is important for the helium coolant of High Temperature Gas-cooled Reactors (HTGRs) because impurities cause oxidation of the graphite used in the core and corrosion of high temperature materials used in the heat exchanger. In the High Temperature Engineering Test Reactor (HTTR) which is the first HTGR in Japan, the chemical impurity concentration is restricted and its behaviour is monitored during reactor operations. The impurity is reduced by the helium purification system and the concentration is measured by the helium sampling system installed to the primary and secondary helium system, continuously. This paper describes the impurity behaviour during the rise-to-power test which is the initial power-up of the HTTR. Also, the amount of the emitted impurity to the primary circuit from the graphite component and insulator used at the concentric hot gas duct are evaluated. During the power up, any abnormal impurity increases were not obtained and the chemical composition of the primary circuit was sufficiently in the stability area to avoid carbon deposition.

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詳細情報 詳細情報について

  • CRID
    1390001205186380672
  • NII論文ID
    130003935966
  • DOI
    10.3327/taesj2002.3.388
  • COI
    1:CAS:528:DC%2BD2MXhvFyktLw%3D
  • ISSN
    21862931
    13472879
    http://id.crossref.org/issn/13472879
    http://id.crossref.org/issn/00047120
  • データソース種別
    • JaLC
    • Crossref
    • CiNii Articles
  • 抄録ライセンスフラグ
    使用不可

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