Speaker
Christian Bachmann
(Power Plant Physics and Technology)
Description
An essential goal of the EU fusion roadmap is the development of design and technology of a Demonstration Fusion Power Reactor (DEMO) to follow ITER. A pragmatic approach is advocated considering a pulsed tokamak based on mature technologies and reliable regimes of operation, extrapolated as far as possible from the ITER experience. The EUROfusion Power Plant Physics and Technology Department (PPPT) started the conceptual design of DEMO in 2014.
This article will describe the most important load combinations that have to be considered in the design of the DEMO tokamak systems including their categorization into four classes based on the expected frequency of occurrence. Furthermore, with exception of the heat loads from the plasma particles and radiation to the plasma facing components, the most important load cases will be described, critical loads will be quantified, and their dependency on the tokamak design choices be highlighted. These will include (i) dead weights, (ii) coolant operating pressures, (iii) electromagnetic (EM) loads during normal operation, (iv) EM loads due to toroidal field coil fast discharge, (v) EM loads in fast and slow plasma disruptions due to eddy and halo currents, (vi) neutron heat loads on plasma-facing components, in-vessel components and the vacuum vessel, (vii) loads in the dominant accident sequences identified by safety analysis.
Co-authors
Christian Bachmann
(Power Plant Physics and Technology, EUROfusion PMU, Garching, Germany)
Giacomo Aiello
(CEA, Saclay, France)
Gianfranco Federici
(Power Plant Physics and Technology, EUROfusion PMU, Garching, Germany)
Ivan Maione
(KIT, Karlsruhe, Germany)
Louis Zani
(CEA, Cadarache, France)
Neill Taylor
(CCFE, Culham, United Kingdom)
Ronald Wenninger
(Power Plant Physics and Technology, EUROfusion PMU, Garching, Germany)
Rosaria Villari
(ENEA, Frascati, Italy)
Sergio Ciattaglia
(Power Plant Physics and Technology, EUROfusion PMU, Garching, Germany)
Ulrich Fischer
(KIT, Karlsruhe, Germany)
