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Smarter waste strategies: Helping deliver on the promise of advanced nuclear
At COP28, held in Dubai in 2023, a clear consensus emerged: Nuclear energy must be a cornerstone of the global clean energy transition. With electricity demand projected to soar as we decarbonize not just power but also industry, transport, and heat, the case for new nuclear is compelling. More than 20 countries committed to tripling global nuclear capacity by 2050. In the United States alone, the Department of Energy forecasts that the country’s current nuclear capacity could more than triple, adding 200 GW of new nuclear to the existing 95 GW by mid-century.
S. Chiocchio, G. Federici, G. Janeschitz, R. Tivey, C. Baxi, J. R. Haines, M. A. Ulrickson
Fusion Science and Technology | Volume 26 | Number 3 | November 1994 | Pages 628-633
Divertor Experiment and Technology | Proceedings of the Eleventh Topical Meeting on the Technology of Fusion Energy New Orleans, Louisiana June 19-23, 1994 | doi.org/10.13182/FST94-A40227
Articles are hosted by Taylor and Francis Online.
The ITER Divertor design is based on the idea of extinguishing the plasma flame in a gas target. According to this scheme a large part of the power entering the divertor region would be dissipated through atomic and molecular reactions. These processes must take place along the whole extension of the divertor throat, in older to limit the thermal loads and particle fluxes onto the target. Thus, the divertor channel walls have to be shaped in order to achieve an adequate heat removal capability and to allow an effective recirculation of the gas from the target to the upper part of the divertor region. This paper describes the main features of the Power Exhaust Structure of the ITER Divertor, which composes the side wall of the divertor channel. In the selected design, the side wall is formed by wing like plates (fins/vanes) twisted 45 degrees in the toroidal direction towards the incoming magnetic field lines. The shape and size of these vanes are determined by the requirement for providing a highly transparent wall, coupled with the need to minimize the thermal deflections and stresses of the structure induced by thermal and electromagnetic loads. The wings are made of copper and protected from the plasma by armor made from either Be or W. In this paper we present the basic features of the proposed design and report on the analyses carried out to assess the behavior of the vanes under the dominant loads. Also, the paper presents an assessment of the concept from the point of view of component fabrication, based on results of preliminary studies carried out to support the design of the ITER divertor.