The implications of the adoption of a tokamak's toroidal field coil characterized by differential tilting in the azimuthal direction are investigated. From an engineering point of view, the major advantage introduced by such coils is a drastic reduction of some components of the electromagnetic forces in certain areas. As a beneficial side-effect, they generate poloidal field, in addition to toroidal field. The former advantage allows for a partial relaxation of the reinforcing structural material required in the machine design, while the poloidal flux generated during the current rise, when used in conjunction with the conventional central solenoid, would allow for discharges of longer duration. This paper presents results obtained by applying the tilting optimization procedure to circular and D-shaped coils, and characterized by geometrical and physical parameters proper of high-field compact tokamaks, since the issue of electromagnetic force reduction is most relevant in these devices.

The differentially-tilted toroidal field coil concept for tokamaks / Gatto, Renato; Bombarda., Francesca. - In: FUSION ENGINEERING AND DESIGN. - ISSN 0920-3796. - 147:(2019), pp. 1-8. [10.1016/j.fusengdes.2019.06.005]

The differentially-tilted toroidal field coil concept for tokamaks

Renato Gatto
Primo
;
2019

Abstract

The implications of the adoption of a tokamak's toroidal field coil characterized by differential tilting in the azimuthal direction are investigated. From an engineering point of view, the major advantage introduced by such coils is a drastic reduction of some components of the electromagnetic forces in certain areas. As a beneficial side-effect, they generate poloidal field, in addition to toroidal field. The former advantage allows for a partial relaxation of the reinforcing structural material required in the machine design, while the poloidal flux generated during the current rise, when used in conjunction with the conventional central solenoid, would allow for discharges of longer duration. This paper presents results obtained by applying the tilting optimization procedure to circular and D-shaped coils, and characterized by geometrical and physical parameters proper of high-field compact tokamaks, since the issue of electromagnetic force reduction is most relevant in these devices.
tokamak; toroidal magnetic field coil; electromagnetic force; poloidal magnetic flux
01 Pubblicazione su rivista::01a Articolo in rivista
The differentially-tilted toroidal field coil concept for tokamaks / Gatto, Renato; Bombarda., Francesca. - In: FUSION ENGINEERING AND DESIGN. - ISSN 0920-3796. - 147:(2019), pp. 1-8. [10.1016/j.fusengdes.2019.06.005]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/1291613
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