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

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We adapted the helium-cooled, FLiBe-breeder blanket to the commercial tandem-mirror fusion-reactor design, MINIMARS. Vanadium was 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 had the highest performance among the MINIMARS blankets designs, measured by Mn/sub th/ (blanket energy multiplication times thermal conversion efficiency), it had 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 ... continued below

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Pages: 7

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Moir, R.W. & Lee, J.D. June 1, 1986.

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Description

We adapted the helium-cooled, FLiBe-breeder blanket to the commercial tandem-mirror fusion-reactor design, MINIMARS. Vanadium was 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 had the highest performance among the MINIMARS blankets designs, measured by Mn/sub th/ (blanket energy multiplication times thermal conversion efficiency), it had 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, we 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.

Physical Description

Pages: 7

Notes

NTIS, PC A02/MF A01.

Source

  • 7. topical meeting on the technology of fusion energy, Reno, NV, USA, 15 Jun 1986

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  • Other: DE86013898
  • Report No.: UCRL-94084
  • Report No.: CONF-860652-16
  • Grant Number: W-7405-ENG-48
  • Office of Scientific & Technical Information Report Number: 5489138
  • Archival Resource Key: ark:/67531/metadc1093103

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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  • June 1, 1986

Added to The UNT Digital Library

  • Feb. 10, 2018, 10:06 p.m.

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  • April 27, 2018, 3:20 p.m.

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Moir, R.W. & Lee, J.D. Helium-cooled, FLiBe-breeder, beryllium-multiplier blanket for MINIMARS, article, June 1, 1986; [Livermore,] California. (digital.library.unt.edu/ark:/67531/metadc1093103/: accessed November 15, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.