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Title: Helium-cooled, FLiBe-breeder, beryllium-multiplier blanket for MINIMARS

Abstract

The authors adapt the helium-cooled, FLiBe-breeder blanket to the commercial tandem-mirror fusion-reactor design, MINIMARS. Vanadium is used to achieve high performance from the high-energy-release neutron-capture reactions and from the high-temperature operation permitted by the refractory property of the material, which increases the conversion efficiency and decreases the helium-pumping power. Although this blanket has the highest performance among the MINIMARS blankets designs, measured by Mn/sub th/ (blanket energy multiplication times thermal conversion efficiency), it has a cost of electricity (COE) 18% higher than the University of Wisconsin (UW) blanket design (42.5 vs 35.9 mills/kW . h). This increased cost was due to using higher-cost blanket materials (beryllium and vanadium) and a thicker blanket, which resulted in higher-cost central-cell magnets and the need for more blanket materials. Apparently, the high efficiency does not substantially affect the COE. Therefore, in the future, they recommend lowering the helium temperature so that ferritic steel can be used. This will result in a lower-cost blanket, which may compensate for the lower performance resulting from lower efficiency.

Authors:
;
Publication Date:
Research Org.:
Lawrence Livermore National Lab., Univ. of California, P.O. Box 808, L-644, Livermore, CA 94550
OSTI Identifier:
7006027
Report Number(s):
CONF-860652-
Journal ID: CODEN: FUSTE; TRN: 87-007583
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Conference
Journal Name:
Fusion Technol.; (United States)
Additional Journal Information:
Journal Volume: 10:3; Conference: 7. topical meeting on the technology of fusion energy, Reno, NV, USA, 15 Jun 1986
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; BREEDING BLANKETS; MATERIALS; MINIMARS REACTOR; CAPTURE; COOLANTS; COST; ELECTRIC POWER; FERRITIC STEELS; FLIBE; HELIUM; MAGNETS; NEUTRON REACTIONS; PERFORMANCE; PUMPING; THERMAL EFFICIENCY; THICKNESS; VANADIUM; ALLOYS; BARYON REACTIONS; DIMENSIONS; EFFICIENCY; ELEMENTS; FLUIDS; GASES; HADRON REACTIONS; IRON ALLOYS; IRON BASE ALLOYS; MAGNETIC MIRROR TYPE REACTORS; METALS; MOLTEN SALTS; NONMETALS; NUCLEAR REACTIONS; NUCLEON REACTIONS; POWER; RARE GASES; REACTOR COMPONENTS; SALTS; STEELS; THERMONUCLEAR REACTORS; TRANSITION ELEMENTS; 700201* - Fusion Power Plant Technology- Blanket Engineering

Citation Formats

Moir, R W, and Lee, J D. Helium-cooled, FLiBe-breeder, beryllium-multiplier blanket for MINIMARS. United States: N. p., 1986. Web.
Moir, R W, & Lee, J D. Helium-cooled, FLiBe-breeder, beryllium-multiplier blanket for MINIMARS. United States.
Moir, R W, and Lee, J D. Sat . "Helium-cooled, FLiBe-breeder, beryllium-multiplier blanket for MINIMARS". United States.
@article{osti_7006027,
title = {Helium-cooled, FLiBe-breeder, beryllium-multiplier blanket for MINIMARS},
author = {Moir, R W and Lee, J D},
abstractNote = {The authors adapt the helium-cooled, FLiBe-breeder blanket to the commercial tandem-mirror fusion-reactor design, MINIMARS. Vanadium is used to achieve high performance from the high-energy-release neutron-capture reactions and from the high-temperature operation permitted by the refractory property of the material, which increases the conversion efficiency and decreases the helium-pumping power. Although this blanket has the highest performance among the MINIMARS blankets designs, measured by Mn/sub th/ (blanket energy multiplication times thermal conversion efficiency), it has a cost of electricity (COE) 18% higher than the University of Wisconsin (UW) blanket design (42.5 vs 35.9 mills/kW . h). This increased cost was due to using higher-cost blanket materials (beryllium and vanadium) and a thicker blanket, which resulted in higher-cost central-cell magnets and the need for more blanket materials. Apparently, the high efficiency does not substantially affect the COE. Therefore, in the future, they recommend lowering the helium temperature so that ferritic steel can be used. This will result in a lower-cost blanket, which may compensate for the lower performance resulting from lower efficiency.},
doi = {},
journal = {Fusion Technol.; (United States)},
number = ,
volume = 10:3,
place = {United States},
year = {1986},
month = {11}
}

Conference:
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