Dependence of CuO particle size and diameter of reaction tubing on tritium recovery for tritium safety operation

Cui Hu*, Yuki Uemura, Kenta Yuyama, Hiroe Fujita, Shodai Sakurada, Keisuke Azuma, Akira Taguchi, Masanori Hara, Yuji Hatano, Takumi Chikada, Yasuhisa Oya

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

Usage of CuO and water bubbler is one of the conventional and convenient methods for tritium recovery. In present work, influence of CuO particle size and diameter of reaction tubing on the tritium recovery was evaluated. Reaction rate constant of tritium with CuO particle has been calculated by the combination of experimental results and a simulation code. Then, these results were applied for exploring the dependence of reaction tubing length on tritium conversion ratio. The results showed that the surface area of CuO has a great influence on the oxidation rate constant. The frequency factor of the reaction would be approximately doubled by reducing the CuO particle size from 1.0 mm to 0.2 mm. Cross section of reaction tubing mainly affected on the duration of tritium at the temperature below 600 K. Reaction tubing with length of 1 m at temperature of 600 K would be suitable for keeping the tritium conversion ratio above 99.9%. The length of reaction tubing can be reduced by using the smaller CuO particle or increasing the CuO temperature.

Original languageEnglish
Pages (from-to)313-317
Number of pages5
JournalFusion Engineering and Design
Volume113
DOIs
StatePublished - 2016/12/01

Keywords

  • CuO
  • Particle size
  • Reaction tubing
  • Tritium recovery
  • Water bubbler

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Nuclear Energy and Engineering
  • General Materials Science
  • Mechanical Engineering

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