Abstract
Actively-cooled divertor and wall protection systems are planned to be installed from start of operation in 2010 in the stellarator WENDELSTEIN 7-X (W7-X). The W7-X plasma facing components are designed to remove up to 10 MW stationary power. To reduce the actively-cooled target areas, the local angle of incidence of the field lines to the target areas has been increased by 1/spl deg/. This modification makes it possible the keeping of the full range of plasma and magnetic parameters to be studied experimentally. Two different loaded zones are defined: the higher loaded zone of about 20 m/sup 2/ designed to withstand a maximum stationary heat flux up to 10-12 MW/m/sup 2/, and the lower loaded zone of about 6 m/sup 2/ designed to withstand a maximum stationary heat flux up to 1 MW/m/sup 2/. The selected technology for the higher loaded zone is based on CFC flat tiles bonded on water cooled CuCrZr heat sink. For the lower loaded zone, graphite tiles are clamped on a CuCrZr heat sink which is brazed on a stainless steel water cooling tube. The design is now sufficiently detailed to start the fabrication.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
