Joris-Karl Huysmans Et Le Style Gris

Smeets, Marc

doi:10.1163/9789004333536_008

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“…The suite of codes CRONOS solves the transport equations for various plasma fluid quantities (current, energy, matter, momentum). This is done in one dimension (the magnetic flux coordinate associated with the minor radius) self-consistently with magnetic equilibrium which is calculated by means of the HELENA module [3]. The neoclassical terms, and in particular the bootstrap current which is essential for the correct simulation of the steady-state regimes, are determined using the NCLASS [4] code.…”

Section: The Cronos Code: Models Appliedmentioning

confidence: 99%

Analysis of DEMO scenarios with the CRONOS suite of codes

García¹,

Giruzzi²,

Artaud³

et al. 2008

Nucl. Fusion

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The CRONOS suite of codes and the GLF23 theory-based transport model are used to perform a 1.5D analysis of the DEMO design. The study uses plasma parameters similar to those obtained in the European Power Plant Conceptual Study in the case of a scenario with moderate inductive current, high bootstrap current fraction, relatively small major radius R = 7.5 m and minor radius a = 2.5 m and high elongation and triangularity. It is shown how it is possible to obtain a high fusion power of 2600 MW and high fusion gain Q = 26.5 by adding 98 MW off-axis neutral beam at a moderately high Greenwald fraction of 1.2. A non-inductive current fraction of 88% is obtained mainly from the bootstrap current at the plasma edge, where a high pedestal of 7.8 keV has been considered in order to optimize the alpha power. It is also shown how by adding 66 MW of electron cyclotron waves to the previous scenario a 100% non-inductive current steady-state scenario can be obtained with a reversed q profile. However, in this case the fusion gain drops to 17.2 due to the higher input power. The application of LH waves is also discussed.

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Section: The Cronos Code: Models Appliedmentioning

confidence: 99%