Eurofusion-DEMO divertor - Cassette design and integration - Archive ouverte HAL
Article Dans Une Revue Fusion Engineering and Design Année : 2020

Eurofusion-DEMO divertor - Cassette design and integration

Christian Vorpahl
  • Fonction : Auteur

Résumé

The Eurofusion-DEMO design will complete the Pre Conceptual Design phase (PCD) with a PCD Gate, named G1, scheduled to take place in Q4 2020 that will focus on assessing the feasibility of the plant and its main components prior to entering into the Conceptual Design phase. In the paper first an overview is given of the Eurofusion-DEMO Divertor Assembly including design and interface description, systems and functional requirements, load specification, system classification, manufacturing procedures and cost estimate. Then critical issues are discussed and potential design solutions are proposed, e.g.:- Neutron material damage limits of the different (structural) materials present in the divertor assembly (as CuCrZr, Eurofer) and in the vacuum vessel (AISI 316 L(N)-IG);- Temperature hot spots in parts of the divertor assembly exposed to high nuclear heating and high heat radiation (from the plasma core or the separatrix) causing difficulties for active or passive cooling (e.g. cassette body structure, liner support structures, mechanical supports, divertor toroidal rails);- Arrangement and design of plasma-facing components and liner with pumping slot in the divertor cassette to enable pumping of exhaust gases from the lower port.
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Dates et versions

hal-03992808 , version 1 (12-03-2024)

Identifiants

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Giuseppe Mazzone, Jeong-Ha You, Christian Bachmann, Ugo Bonavolontà, Valerio Cerri, et al.. Eurofusion-DEMO divertor - Cassette design and integration. Fusion Engineering and Design, 2020, 157, pp.111656. ⟨10.1016/j.fusengdes.2020.111656⟩. ⟨hal-03992808⟩
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