Title :
Development of high thermal flux components for continuous operation in tokamaks
Author :
Schlosser, J. ; Cardella, A. ; Chappuis, P. ; Coston, J.F. ; Deschamps, P. ; Lipa, M.
Author_Institution :
CEN de Cadarache, St. Paul-Lez-Durance, France
fDate :
30 Sep-3 Oct 1991
Abstract :
High-heat-flux candidate structures of square-shaped dispersion-strengthened copper tubes with heat-transfer-enhanced swirl tape inserted into the cooling channel have been successfully tested in the CEA-FRAMATOME EB (electron beam) facility and in the NB (neutral beam) test bed at JET (Joint European Torus). An incident power deposition up to 33 MW/m2 has been removed without damage. CFC (carbon-fiber composite) materials manufactured by Carbone Lorraine and SEP have been brazed to OFHC copper substrates. Despite the stress singularity at the braze joint, the concept appears promising based on these first results. CFC flat tiles brazed on these same cooling structures have withstood incident heat fluxes up to 15 MW/m2. The installation of high-heat-flux structures, in the Tore Supra tokamak will complement these studies in a plasma environment
Keywords :
fusion reactor materials; fusion reactor theory and design; C-fiber composite; CEA-FRAMATOME EB; CFC; Carbone Lorraine; Cu; JET; Joint European Torus; NB; SEP; Tore Supra; braze joint; candidate structures; continuous operation; cooling channel; dispersion-strengthened; electron beam; heat-transfer-enhanced swirl tape; high thermal flux components; high-heat-flux structures; incident heat fluxes; neutral beam; plasma environment; power deposition; square-shaped; tokamaks; Composite materials; Cooling; Copper; Electron beams; Electron tubes; Manufacturing; Niobium; Organic materials; Stress; Testing;
Conference_Titel :
Fusion Engineering, 1991. Proceedings., 14th IEEE/NPSS Symposium on
Conference_Location :
San Diego, CA
Print_ISBN :
0-7803-0132-3
DOI :
10.1109/FUSION.1991.218806
