Conceptual Design of the Mechanical Tritium Pumping System for JET DTE2

Thomas Giegerich; Nicolas Bekris; Barry Butler; Christian Day; Michael Gethins; Sergej Lesnoj; Xueli Luo; Ralf Müller; Santiago Ochoa; Peter Pfeil; Robert Smith; JET Contributors

doi:dx.doi.org/10.13182/FST14-950

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Conceptual Design of the Mechanical Tritium Pumping System for JET DTE2

Thomas Giegerich, Nicolas Bekris, Barry Butler, Christian Day, Michael Gethins, Sergej Lesnoj, Xueli Luo, Ralf Müller, Santiago Ochoa, Peter Pfeil, Robert Smith, JET Contributors

Fusion Science and Technology / Volume 68 / Number 3 / October 2015 / Pages 630-634

Technical Paper / Proceedings of TOFE-2014 / dx.doi.org/10.13182/FST14-950

First Online Publication:July 30, 2015

Updated:September 30, 2015

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This paper describes the conceptual design of the Mechanical Tritium Pumping System (MTPS) that shall be installed and tested at JET during the next Deuterium-Tritium-Experiment (DTE2).

This pump train uses a two-stage liquid ring pump in combination with a booster pump to cover a pressure regime from 10^-1 Pa to 10⁵ Pa. As working fluid for all pumps, mercury will be used for tritium compatibility reasons.

Starting from the requirements to MTPS, the pumps and their arrangement will be described in this paper as well as the mercury containment strategy and safety- and control issues.