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Berlin 2014 – scientific programme

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P: Fachverband Plasmaphysik

P 17: Poster Session - Helmholtz Graduate School for Plasma Physics

P 17.19: Poster

Wednesday, March 19, 2014, 16:30–18:30, SPA Foyer

Stellarator-specific developments for the systems code PROCESS — •F. Warmer1, P. Knight2, C.D. Beidler1, A. Dinklage1, Y. Feng1, J. Geiger1, F. Schauer1, Y. Turkin1, D. Ward2, R. Wolf1, and P. Xanthopoulos11Max-Planck-Institut für Plasmaphysik, Wendelsteinstraße 1, D-17491 Greifswald, Germany — 2Culham Centre for Fusion Energy, Abingdon, Oxfordshire, OX14 3DB, United Kingdom

The code package PROCESS is a tool widely used for Tokamak systems studies. In this study, however, the application of PROCESS to Stellarators is addressed. In order to incorporate a Stellarator module in the systems code PROCESS, Stellarator-specific models are considered which reflect the differences due to the confinement concept. These include: a geometry model based on Fourier coefficients which can represent the complex 3-D plasma shape, a divertor model which assumes diffusive cross-field transport and high radiation at the X-point, a coil model which is a scaling based on the Helias 5-B design and a transport model which employs a confinement time scaling derived from empirical scalings and by sophisticated 1-D neoclassical and anomalous calculations. This approach is investigated to ultimately allow one to facilitate a direct comparison between Tokamak and Stellarator power plant designs.

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