Fusion Nuclear Science Pathways Assessment

Kessel, C.

doi:10.2172/1074359

Cited by 5 publications

(1 citation statement)

References 14 publications

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“…The heat could then be transferred to a conventional Rankine cycle (steam turbine) or Brayton (gas turbine) cycle. Power extraction issues in a fusion reactor differ substantially from other energy sources, including fission, due to the extreme conditions, multiple conflicting requirements, and the unique multi-physics environ ment in which fusion power extraction components and materials must function (see table 4 [69,70]). The limited temper ature ranges allowed by present day irradiated structural materials, combined with the large internal power demand of the plant, will limit the overall thermal efficiency.…”

Section: Primary Heat Transfer System and Balance Of Plantmentioning

confidence: 99%

European DEMO design strategy and consequences for materials

Federici¹,

et al. 2017

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Demonstrating the production of net electricity and operating with a closed fuel-cycle remain unarguably the crucial steps towards the exploitation of fusion power. These are the aims of a demonstration fusion reactor (DEMO) proposed to be built after ITER. This paper briefly describes the DEMO design options that are being considered in Europe for the current conceptual design studies as part of the Roadmap to Fusion Electricity Horizon 2020. These are not intended to represent fixed and exclusive design choices but rather 'proxies' of possible plant design options to be used to identify generic design/material issues that need to be resolved in future fusion reactor systems. The materials nuclear design requirements and the effects of radiation damage are briefly analysed with emphasis on a pulsed 'low extrapolation' system, which is being used for the initial design integration studies, based as far as possible on mature technologies and reliable regimes of operation (to be extrapolated from the ITER experience), and on the use of materials suitable for the expected level of neutron fluence. The main technical issues arising from the plasma and nuclear loads and the effects of radiation damage particularly on the structural and heat sink materials of the vessel and in-vessel components are critically discussed. The need to establish realistic target performance and a development schedule for near-term electricity production tends to favour more conservative technology choices. The readiness of the technical (physics and technology) assumptions that are being made is expected to be an important factor for the selection of the technical features of the device.

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Section: Primary Heat Transfer System and Balance Of Plantmentioning

confidence: 99%

European DEMO design strategy and consequences for materials

Federici¹,

et al. 2017

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Fusion Reactor Instrumentation

Young

2016

Wiley Encyclopedia of Electrical and Electronics Engineering

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The plasma measurements in a fusion reactor will be devoted to providing signals for the control of the plasma and the protection of the reactor. The very high radiation levels, and the shortage of accessible space because of the needs to generate new tritium fuel and electricity will be major constraints on the selection of instrumentation. This article attempts to define the necessary measurements for a tokamak reactor, making clear that significant evolution will be required from present‐day instrumentation. Some present‐day techniques are briefly described. Also, because of the very high intensity of the neutron, and associated gamma radiation, its possible impacts are described, as are some other necessary developments in plasma diagnostic implementation.

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Cost Drivers for a Tokamak-Based Compact Pilot Plant

Wade

Leuer

2021

Fusion Science and Technology

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Fusion Nuclear Science Pathways Assessment

Cited by 5 publications

References 14 publications

European DEMO design strategy and consequences for materials

European DEMO design strategy and consequences for materials

Fusion Reactor Instrumentation

Cost Drivers for a Tokamak-Based Compact Pilot Plant

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