Low activity blanket designs and heat transfer for experimental power reactors
Two minimum activity blanket designs are described, based on the ANL TEPR circular design parameters. A first wall loading (plasma on) of 1.0 MW(th)/m/sup 2/ has been assumed. The first option is composed of SAP (sintered aluminum product) modules. The oval shaped SAP shell, in which approximately 45 percent of the fusion energy is removed, is maintained at a temperature of approximately 400/sup 0/C by a He coolant stream. The remaining 55 percent of the fusion energy is deposited in a thermally insulated hot interior (SiC and B/sub 4/C) and removed by a separate He coolant, with exit temperature of 800/sup 0/C. In the second option, the blanket is a thick graphite block structure (approximately 50 cm thickness) with SAP coolant tubes carrying He (50 atm) embedded deep within the graphite to minimize radiation damage. The neutron and gamma energy deposited in the graphite is radiated along internal slots and conducted through the graphite to the coolant tubes. To reduce surface evaporation above 2000/sup 0/C, the blanket surface is radiatively cooled to a low temperature radiation sink, a bank of He cooled SAP tubes. Approximately 20 percent of the fusion energy is removed in this region, the remaining 80 percent in the primary graphite-aluminum blanket. Both blanket options are mounted on heavy Al backing plates, cooled by He, which are in turn supported from the fixed shield.
- Research Organization:
- Brookhaven National Lab., Upton, N.Y. (USA)
- Sponsoring Organization:
- US Energy Research and Development Administration (ERDA)
- DOE Contract Number:
- E(30-1)-16
- OSTI ID:
- 7158633
- Report Number(s):
- BNL-21564
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
700201* -- Fusion Power Plant Technology-- Blanket Engineering
700204 -- Fusion Power Plant Technology-- Cooling Systems
BARYON REACTIONS
BREEDING BLANKETS
CARBON
CLOSED PLASMA DEVICES
COOLANTS
COOLING SYSTEMS
CRYOGENIC FLUIDS
DESIGN
ELECTROMAGNETIC RADIATION
ELEMENTS
ENERGY TRANSFER
FIRST WALL
FLUIDS
GAMMA RADIATION
GRAPHITE
HADRON REACTIONS
HEAT TRANSFER
HELIUM
IONIZING RADIATIONS
NEUTRON REACTIONS
NONMETALS
NUCLEAR REACTIONS
NUCLEON REACTIONS
POWER DENSITY
RADIATIONS
RADIOACTIVITY
RARE GASES
REACTOR COMPONENTS
SAP
SINTERED MATERIALS
THERMONUCLEAR DEVICES
THERMONUCLEAR REACTOR COOLING SYSTEMS
THERMONUCLEAR REACTOR WALLS
TOKAMAK DEVICES
WALL LOADING