Experimental Study of Sodium/Carbon Dioxide Reaction

DOI Web Site Web Site 7 References Open Access
  • ISHIKAWA Hiroyasu
    Advanced Nuclear System Research and Development Directorate, Japan Atomic Energy Agency
  • MIYAHARA Shinya
    Advanced Nuclear System Research and Development Directorate, Japan Atomic Energy Agency
  • YOSHIZAWA Yoshio
    Research Laboratory for Nuclear Reactors, Tokyo Institute of Technology

Bibliographic Information

Other Title
  • ナトリウム／二酸化炭素反応に関する試験研究
  • ナトリウム ニサンカ タンソ ハンノウ ニ カンスル シケン ケンキュウ

Search this article

Description

  Supercritical carbon dioxide (CO2) is being investigated as a material for a secondary cooling system of sodium (Na)-cooled fast reactor to avoid Na/water reaction. In this type of reactor, however, it is necessary to consider the consequences of Na/CO2 reaction, which might occur in the case of tube rupture in a heat exchanger between primary and secondary systems. Experiments were carried out with test equipment for the Na/CO2 reaction, which can handle 1-5 g order of Na and measure temperatures using thermocouples. The solid products of the Na/CO2 reaction sampled from the equipment were analyzed by X-ray diffraction (XRD) and chemical analysis. The parts of exhaust gases were analyzed by gas chromatography. From these experimental results, we proved that the reaction proceeded between liquid Na and CO2. The Na/CO2 reaction stopped only the pool surface reaction with a small quantity of aerosol emission when the initial temperature of Na was lower than 570°C. On the other hand, the reaction continuously proceeded with an orange-colored flame and aerosol release when the Na initial temperature was higher than 580°C, and the reaction products expanded to the margin of the Na pool tray.<br>

Journal

References(7)*help

See more

Keywords

Details 詳細情報について

Report a problem

Back to top