Design of ITER Plasma Exhaust Processing Systems

The Tritium Plant design for the ITER Engineering Design Activity (EDA) phase is based on the results of almost 20 years of development effort in support of tritium processing and handling as part of the fusion energy program. During this period there have been many evaluations, investigations, and proposals for tritium processing. This paper presents an overview of the planned design for Torus Exhaust Processing and Hydrogen Storage Systems, including plant layout, and equipment arrangements. Process selection and system design are based on using proven technologies, where available, with emphasis on safety, practical application, reliability, and minimization of tritium inventory. The basis for selection of permeation, instead of the Conceptual Design [1] cryogenic sorption, for initial separation of hydrogen from impurities is highlighted. The importance of continuing and future development activities, including demonstration of the integrated exhaust processing system is also presented.