Eurofusion-DEMO Divertor - Cassette Design and Integration

6533b7d9fe1ef96bd126cca4

RESEARCH PRODUCT

Eurofusion-DEMO Divertor - Cassette Design and Integration

Antonio Maffucci Davide Flammini Danilo Nicola Dongiovanni V. Imbriani E. Vallone D. Marzullo P. Frosi V. Cerri Maria Teresa Porfiri Rosaria Villari P.a. Di Maio G. Di Gironimo Eliseo Visca Laurent Forest C. Bachmann C. Vorpahl G. Di Mambro Giuseppe Mazzone D. Coccorese J.-h. You U. Bonavolonta

subject

DEMO; Divertor; CAD Design Materials science Passive cooling Nuclear engineering Port (circuit theory)01 natural sciences 7. Clean energy 010305 fluids & plasmas [SPI]Engineering Sciences [physics]Divertor Conceptual design 0103 physical sciences DEMO fusion reactor General Materials Science CAD Design 010306 general physics DEMO nuclear fusion Settore ING-IND/19 - Impianti Nucleari Civil and Structural Engineering electromagnetic computation Toroid Nuclear heating Separatrix Mechanical Engineering Divertor nuclear fusion plasma control electromagnetic computation Nuclear Energy and Engineering TUNGSTEN/EUROFER COATING SYSTEM CONCEPTUAL DESIGN COOLING CIRCUIT PROGRESS HCLL plasma control High heat

description

International audience; 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.

year	journal	country	edition	language
2020-08-01

10.1016/j.fusengdes.2020.111656 http://hdl.handle.net/10447/493003