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Title: Design considerations for a steady state fusion reactor's thermal energy dump (TED) with emphasis on SAFFIRE

Technical Report ·
DOI:https://doi.org/10.2172/7182878· OSTI ID:7182878

This work examines the use of a thermal dump to handle the severe particle and energy handling requirements of a diverted plasma. We outline a general approach for evaluating the design parameters and limitations of a thermal dump, considering such things as thermomechanical and erosion effects, compatibility, availability, machinability, coolant recirculation, vacuum pumping, economics, lifetime, etc. To demonstrate how the performance requirements are reflected in design decisions, we apply a solid-walled dump to a small-sized field reversed mirror (FRM). We also examine a liquid-lithium droplet thermal dump and point out some distinct advantages of this new concept over the solid-wall design in reducing stress, erosion, and vacuum pumping problems. The chief disadvantages of this scheme include liquid-metal safe-handling problems, vapor pressure-temperature limitations, and the need for differential pumping if T/sub Li/ > 310/sup 0/C is desired.

Research Organization:
Illinois Univ., Urbana (USA). Fusion Studies Lab.
DOE Contract Number:
AS02-76ET52040
OSTI ID:
7182878
Report Number(s):
COO-2218-182; TRN: 80-018493
Resource Relation:
Other Information: Thesis
Country of Publication:
United States
Language:
English