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Lithium-Cooled Blankets for Advanced Tokamaks

B. F. Picologlou, Y. S. Cha, S. Majumdar

Fusion Science and Technology / Volume 10 / Number 3P2A / November 1986 / Pages 848-853

Liquid-Metal Blankets and Magnetohydrodynamic Effects / Proceedings of the Seveth Topical Meeting on the Technology of Fusion Energy (Reno, Nevada, June 15–19, 1986) / dx.doi.org/10.13182/FST86-A24843

The reactors considered in the Tokamak Power Systems Studies (TPSS), with their reduced toroidal magnetic flux densities, increased aspect ratios, and moderate overall power outputs afford the possibility of significant improvements and simplification in the design of liquid-metal self-cooled blankets. In designing the first wall and blanket structural, thermal, and magnetohydrodynamic constraints must be satisfied simultaneously. A systematic approach to do so efficiently, and resulting design parameters are presented. Designs with separate limiters can achieve a neutron wall loading capability of about 5 MW/m2 with bare structural walls near the first wall and insulated laminated construction in regions of low fluence only. When laminated wall construction is used in the first wall coolant channels, the neutron wall loading capability exceeds 10 MW/m2.