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Application of Membrane Dehumidifier for Gaseous Trituim Recovery in the LHD

Y. Asakura, M. Tanaka, H. Ogawa, S. Takami

Fusion Science and Technology / Volume 60 / Number 4 / November 2011 / Pages 1363-1366

Detritiation and Isotope Separation / Proceedings of the Ninth International Conference on Tritium Science and Technology (Part 2) /

In order to realize the planned deuterium plasma experiments using the Large Helical Device (LHD), the National Institute for Fusion Science (NIFS) is planning to install a system for tritium recovery from exhaust gas. While adopting typical tritium recovery systems, NIFS has also made plans for the development of a compact reduced-waste recovery system by applying a membrane type dehumidifier. A commercially available membrane dehumidifier was evaluated experimentally for this purpose with the results indicating such a membrane is feasible for practical application.

A small scale test apparatus having a capacity 1/10th (30 m3/h) that of the actual tritium recovery system with the same flow control system was constructed and its performance evaluated.

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