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Abstract

The results obtained from small-scale mockups manufactured on the monoblock design concept prove that the solution appears promising for a conventional divertor operating with heat fluxes in the range 10 to 15 MW/m(2) with a thermal fatigue cycle exceeding 1000 cycles at full power. The concept developed in laboratory-scale brazing tests and the results of component design optimisation have been implemented in a larger multi-tube mockup with the following goals: (i) to demonstrate the possibility of manufacturing defect-free industrial components on a standard basis; (ii) to establish the feasibility and performance of a number of design features, including supporting concepts and tile shaping; (iii) to check the capability of NDE techniques to predict defects relevant to the thermal performance of the component. The FE thermal and thermal-mechanical analysis of the divertor mockup structure is reported and the critical areas of sliding support are highlighted for comparison with experimental results. The main results of NDE and experimental high heat flux tests are reported and discussed.

Additional information

Authors: DI PIETRO E, ENEA, Centro Ricerche Energia Frascati, Roma (IT);ORSINI A, ENEA, Centro Ricerche Energia Frascati, Roma (IT);SACCHETTI M, ENEA, Centro Ricerche Energia Frascati, Roma (IT);LIBERA S, ENEA, Centro Ricerche Energia Frascati, Roma (IT);CARDELLA A, Max-Planck-Institut für Plasmaphysik, Garching bei München (DE);VIEIDER G, Max-Planck-Institut für Plasmaphysik, Garching bei München (DE)
Bibliographic Reference: Paper presented: 15th IEEE/NPSS Symposium on Fusion Engineering, Hyannis (US), October 11-15, 1993
Availability: Available from (1) as Paper EN 37908 ORA
Record Number: 199311440 / Last updated on: 1994-11-28
Category: PUBLICATION
Original language: en
Available languages: en