Engineering description of a solid first wall blanket based on advanced ferritic steel and re-circulating Flibe

Author

Sviatoslavsky, I.N. ; Sawan, M.E. ; Mogahed, E.A. ; Malang, S. ; Wong, C.P.C. ; Friend, M. ; Majumdar, S. ; Sharafat, S.

Author_Institution

Wisconsin Univ., Madison, WI, USA

fYear

2003

fDate

14-17 Oct. 2003

Firstpage

118

Lastpage

121

Abstract

A solid wall blanket utilizing advanced ferritic steel and re-circulating Flibe has been scoped out under the Advanced Power Extraction (APEX) program. This paper describes the engineering aspects of the design. The new alloy is the nano-composited ferritic (NCF) steel 12YWT and the breeding/cooling material is Flibe (Li₂BeF₄). The blanket has a solid first wall, but has an innovative coolant scheme, which allows part of the cooling fluid to be re-circulated to enhance the outlet temperature and thus improve the power cycle efficiency. Another innovation is the use of Pb as a neutron multiplier. The coolant outlet temperature is 681°C allowing a conversion efficiency of 47%. Material issues, structural analysis, fabrication aspects and coolant circuits are covered.

Keywords

beryllium compounds; fusion reactor blankets; fusion reactor design; lithium compounds; nanocomposites; steel; 12YWT; 47 percent; 681 degC; APEX program; Advanced Power Extraction; Li₂BeF₄; breeding/cooling material; coolant circuits; cooling fluid; innovative coolant; nanocomposited ferritic steel; neutron multiplier; power cycle efficiency; recirculating Flibe; solid first wall blanket; structural analysis; Building materials; Coolants; Cooling; Design engineering; Iron alloys; Power engineering and energy; Solids; Steel; Technological innovation; Temperature;

fLanguage

English

Publisher

ieee

Conference_Titel

Fusion Engineering, 2003. 20th IEEE/NPSS Symposium on

Print_ISBN

0-7803-7908-X

Type

conf

DOI

10.1109/FUSION.2003.1426602

Filename

1426602