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Design of a stainless-steel helium-cooled first-wall for a tokamak reactor blanket

Technical Report ·
OSTI ID:5873843
This report summarizes the results of the thermal and hydraulic analysis on a magnetic fusion power reactor first-wall design that will be tolerant to minor coolant leaks. The design uses stainless steel as a structural material, liquid lithium as a heat conduction and tritium breeding material, and high pressure helium as a coolant. Bubbles of helium from minor leaks float to the surface of the liquid lithium where the gas is pumped off by a vacuum pump. The wall design is capable of absorbing heat flux densities up to 1.0 MW/m/sup 2/ with the first-wall temperature not exceeding 450/sup 0/C and the helium pumping power not exceeding 5% of the first wall thermal output. The performance characteristic curves which are developed provide a good basis for comparing first-wall designs.
Research Organization:
Westinghouse Electric Corp., Pittsburgh, PA (USA). Fusion Power Systems Dept.
DOE Contract Number:
AC02-77ET51010
OSTI ID:
5873843
Report Number(s):
WFPS-TME-79-031; ON: DE82002469
Country of Publication:
United States
Language:
English