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Fusion Engineering and Design 17 (1991) 131-137 131 North-Holland

Summary: Fusion Engineering and Design 17 (1991) 131-137 131
Thermal control of solid breeder blankets
A.R. Raffray, A. Ying, Z. Gorbis, M.S. Tillack and M.A. Abdou
Mechanical, Aerospace and Nuclear Engineering Department, Unit~ersityof California, Los Angeles, CA 90024-1597, USA
An assessment of the thermal control mechanisms applicable to solid breeder blanket designs under ITER-like operating
conditions is presented in this paper. Four cases are considered: a helium gap; a sintered block Be region; a sintered block
Be region with a metallic felt at the Be-clad interface; and a Be packed bed region. For these cases, typical operating
conditions are explored to determine the ranges of wall load which can be accommodated while maintaining the breeder
within its allowableoperating temperature window.The corresponding region thicknesses are calculated to help identify the
praticality of each concept and the design tolerances.
1. Introduction
Thermal control is an important issue for solid
breeder blankets since the breeder needs to operate
within its temperature window for the tritium release
and inventory to be acceptable. For an experimental
reactor like ITER, where power production is not an
objective, the coolant can be kept at low temperature
and low pressure to enhance reliability and safety. In
order to maintain the solid breeder above its minimum


Source: Abdou, Mohamed - Fusion Science and Technology Center, University of California at Los Angeles
Raffray, A. René - Center for Energy Research, University of California at San Diego


Collections: Plasma Physics and Fusion