Thermal Management of Tungsten Leading Edges in DIII-D and ITER
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Physica Scripta
Many ideas for liquid surface PFCs are for divertors. First walls are likely to be more challenging technologically because long flow paths are necessary for fast flowing systems and the first wall must be an integral structure with the blanket. Maximum tolerable heat loads are a critical concern. This paper describes several processes at work in walls with fast-flowing or slow-flowing liquid plasma-facing surfaces, and the considerations imposed by heat transfer and the power balance for the PFC as well as the structure needed for an integrated first wall and blanket, and uses thermal modeling of a generic PFC structure to illustrate the issues and support the conclusions.
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Until 2012, Sandia participated regularly in non-fusion R&D that was supported primarily through our collaborations with companies in the DOE program for Small Business Innovative Research but also in some work-for-others contracts. In this work, funds were recovered from collaborating institutions for the staff time and materials used, but FES had supported the facility itself and in doing so enabled the contributions to the non-fusion R&D below.
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