The development and testing of the thermal break divertor monoblock target design delivering 20MWm

M. Fursdon, T. Barrett, F. Domptail, Ll.M. Evans, N. Luzginova, N.H. Greuner, J.-H. You, M. Li, M. Richou, F. Gallay, E. Visca

Research output: Contribution to conferencePaper

11 Citations (Scopus)

Abstract

The design and development of a novel plasma facing component (for fusion power plants) is described. The component uses the existing 'monoblock' construction which consists of a tungsten 'block' joined via a copper interlayer to a through CuCrZr cooling pipe. In the new concept the interlayer stiffness and conductivity properties are tuned so that stress in the principal structural element of the component (the cooling pipe) is reduced. Following initial trials with off-the-shelf materials, the concept was realized by machined features in an otherwise solid copper interlayer. The shape and distribution of the features were tuned by finite element analyses subject to ITER structural design criterion in-vessel components (SDC-IC) design rules. Proof of concept mock-ups were manufactured using a two stage brazing process verified by tomography and micrographic inspection. Full assemblies were inspected using ultrasound and thermographic (SATIR) test methods at ENEA and CEA respectively. High heat flux tests using IPP's GLADIS facility showed that 200 cycles at 20MWm-2and five cycles at 25MWm-2could be sustained without apparent component damage. Further testing and component development is planned.
Original languageEnglish
DOIs
Publication statusPublished - 1 Dec 2017
Externally publishedYes
Event16th International Conference on Plasma-Facing Materials and Components for Fusion Applications, PFMC 2017 - Neuss/Dusseldorf, Germany
Duration: 1 Dec 2017 → …

Conference

Conference16th International Conference on Plasma-Facing Materials and Components for Fusion Applications, PFMC 2017
CountryGermany
CityNeuss/Dusseldorf
Period1/12/17 → …

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All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics
  • Mathematical Physics
  • Condensed Matter Physics

Cite this

Fursdon, M., Barrett, T., Domptail, F., Evans, L. M., Luzginova, N., Greuner, N. H., You, J-H., Li, M., Richou, M., Gallay, F., & Visca, E. (2017). The development and testing of the thermal break divertor monoblock target design delivering 20MWm. Paper presented at 16th International Conference on Plasma-Facing Materials and Components for Fusion Applications, PFMC 2017, Neuss/Dusseldorf, Germany. https://doi.org/10.1088/1402-4896/aa8c8e