Initial layout of DEMO buildings and configuration of the main plant systems

Gliss, C.; Ciattaglia, S.; Korn, Walter; Moscato, I.

doi:10.1016/j.fusengdes.2018.02.101

Cited by 27 publications

(30 citation statements)

References 5 publications

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“…A proposal of TL layout is being studied within the work package balance of plant (WPBoP) [19] to develop a suitable configuration of the plant system inside the tokamak building. The prescribed level of the stray magnetic field (SMF), in both radial and vertical directions at the gyrotron position, defines the minimum distance (120 m) between the RF buildings and DEMO hall [20].…”

Section: Tokamak Building Integration Designmentioning

confidence: 99%

EU DEMO EC equatorial launcher pre-conceptual performance studies

Garavaglia

Baiocchi

Bruschi

et al. 2020

Fusion Engineering and Design

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The preliminary conceptual design for the Electron Cyclotron (EC) system of the future European DEMOnstration fusion power plant is ongoing in the EUROfusion Consortium. This represents one of the key aspects in order to assess the performances and the integration capabilities of such a system in EU DEMO as well as in the alternative reactor configuration Flexi-DEMO. Different options for the antenna, namely remote steering antenna (RSA), open ended waveguides (OEWG) and the front steering antenna (FSA) later on renamed in mid steering antenna (MSA) to notify that the MSA is protected behind the breeding blanket (BB) in DEMO, are investigated, analyzing their performance for several injection angles and launch points. This activity considers the constraints given by physics and engineering requirements, as for example the maximum power per port and the necessary local current drive to stabilize neo-classical tearing modes (NTMs) with a proper deposition width. The beam tracing calculations have been performed on different scenarios, providing information on plasma accessibility and deposited power. The microwave design and initial ideas about the ex-vessel EC transmission lines routing will be shown.

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Section: Tokamak Building Integration Designmentioning

confidence: 99%

EU DEMO EC equatorial launcher pre-conceptual performance studies

Garavaglia

Baiocchi

Bruschi

et al. 2020

Fusion Engineering and Design

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“…Behind all these will lie an integrated supply chain of human and industrial capability of a scale and diversity seldom seen. The DEMO building schematic is reprinted from [24], Copyright (2018), with permission from Elsevier. Safety and environmental issues deserve special mention as they are fundamental to the device architecture, size of components, choice of materials, design of many systems and design of the buildings to allow safe robotic movement of large, activated components around the plant.…”

Section: Major Science and Technology Interfacesmentioning

confidence: 99%

Towards a fusion power plant: integration of physics and technology

Morris

Akers

Cox

et al. 2022

Plasma Phys. Control. Fusion

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A fusion power plant can only exist with physics and technology acting in synchrony, over space (angstroms to tens of metres) and time (femtoseconds to decades). Recent experience with the European DEMO programme has shown how important it is to start integration early, yet go deep enough to uncover the integration impact, favourable and unfavourable, of the detailed physical and technological characteristics. There are some initially surprising interactions, for example, the fusion power density links the properties of materials in the components to the approaches to waste and remote maintenance in the context of a rigorous safety and environment regime. In this brief tour of a power plant based on a tokamak we outline the major interfaces between plasma physics and technology and engineering considering examples from the European DEMO (exhaust power handling, tritium management and plasma scenarios) with an eye on other concepts. We see how attempting integrated solutions can lead to discoveries and ways to ease interfaces despite the deep coupling of the many aspects of a tokamak plant. A power plant’s plasma, materials and components will be in new parameter spaces with new mechanisms and combinations; the design will therefore be based to a significant extent on sophisticated physics and engineering models making substantial extrapolations. There are however gaps in understanding as well as data – together these are termed “uncertainties”. Early integration in depth therefore represents a conceptual, intellectual and practical challenge, a challenge sharpened by the time pressure imposed by the global need for low carbon energy supplies such as fusion. There is an opportunity (and need) to use emerging transformational advances in computational algorithms and hardware to integrate and advance, despite the “uncertainties” and limited experimental data. We use examples to explore how an integrated approach has the potential to lead to consistent designs that could also be resilient to the residual uncertainties. The paper may stimulate some new thinking as fusion moves to the design of complete power plants alongside an evolving and maturing research programme.

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“…with FRAMATOME GmbH (formerly AREVA) for both options using either water or helium to remove the heat from the breeding blanket. These are useful to identify the major buildings and structures needed to contain the plant equipment (see [3,34] and references therein) and their main dimension characteristics. Figure 7 shows an elevation view of the plant and a comparison with the European pressurized reactor (EPR) design.…”

Section: Plant Equipment Buildings Preliminary Demo Plant Layout Conmentioning

confidence: 99%

Overview of the DEMO staged design approach in Europe

Federici¹,

Bachmann²,

et al. 2019

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This paper describes the status of the pre-conceptual design activities in Europe to advance the technical basis of the design of a DEMOnstration Fusion Power Plant (DEMO) to come in operation around the middle of this century with the main aims of demonstrating the production of few hundred MWs of net electricity, the feasibility of operation with a closedtritium fuel cycle, and maintenance systems capable of achieving adequate plant availability. This is expected to benefit as much as possible from the ITER experience, in terms of design, licensing, and construction. Emphasis is on an integrated design approach, based on system engineering, which provides a clear path for urgent R&D and addresses the main design integration issues by taking account critical systems interdependencies and inherent uncertainties of important design assumptions (physics and technology). A design readiness evaluation, together with a technology maturation and down selection strategy are planned through structured and transparent Gate Reviews. By embedding industry experience in the design from the beginning it will ensure that early attention is given to technology readiness and industrial feasibility, costs, maintenance, power conversion, nuclear safety and licensing aspects.

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Initial layout of DEMO buildings and configuration of the main plant systems

Cited by 27 publications

References 5 publications

EU DEMO EC equatorial launcher pre-conceptual performance studies

EU DEMO EC equatorial launcher pre-conceptual performance studies

Towards a fusion power plant: integration of physics and technology

Overview of the DEMO staged design approach in Europe

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