Title of article :
Tritium self-sufficiency time and inventory evolution for solid-type breeding blanket materials for DEMO
Author/Authors :
Packer، نويسنده , , L.W. and Pampin، نويسنده , , R. T. Zheng، نويسنده , , S.، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2011
Pages :
5
From page :
718
To page :
722
Abstract :
One of the primary functions of a fusion blanket is to generate enough tritium to make a fusion power plant (FPP) self-sufficient. To ensure that there is satisfactory tritium production in a real plant the tritium breeding ratio (TBR) in the blanket must be greater than 1 + M, where M is the breeding margin. For solid-type blanket designs, the initial TBR must be significantly higher than 1 + M, since the blanket TBR will be reduced over time as the lithium fuel is consumed. The rate of TBR reduction will impact on the overall blanket self-sufficiency time, the time in which the net tritium inventory of the system is positive. elevant blanket materials, Li4SiO4 and Li2TiO3, are investigated by computational simulation using radiation transport tools coupled with time-dependent inventory calculations. The results include tritium inventory assessments and depletion of breeding materials over time, which enable self-sufficiency times and maximum surplus tritium inventories to be evaluated, which are essential quantities to determine to allow one to design a credible FPP using solid-type breeding material concepts. The blanket concepts investigated show self-sufficiency times of several years in some cases and maximum surplus inventories of up to a few tens of kg.
Journal title :
Journal of Nuclear Materials
Serial Year :
2011
Journal title :
Journal of Nuclear Materials
Record number :
1358644
Link To Document :
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