Thermal stability studies of an experimental nuclear fusion reactor

15th International Congress on Plasma Physics; 13th Latin American Workshop on Plasma Physics

Martinell, Julio J.^1 ; Vitela, Javier E.^1

Instituto de Ciencias Nucleares, Universidad Nacional Autonoma de Mexico, A. Postal 70-543, Mexico D.F., Mexico^1

关键词: Auxiliary heating;    Nuclear fusion reactors;    Operation state;    Optimal operation point;    Thermal stability studies;    Tokamak fusion reactors;    Two Temperature Model;    Varying parameters;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/511/1/012043/pdf
DOI  :  10.1088/1742-6596/511/1/012043

来源: IOP

【 摘 要 】

The conditions for the operation of a tokamak fusion reactor are studied considering a fiducial operating state and analyze variations about this state. We use a volume averaged 0-D two-temperature model and consider the case of a fusion thermonuclear reactor of the ITER type which will operate with a burning plasma at an energy gain factor of Q=10. The possible operation states are represented in POPCON plots of density n versus electron temperature Teby varying parameters such as the fusion power, the energy gain and the auxiliary heating power, but keeping the ratio (Te-Ti)/Tefixed, in order to determine the optimal operation point. Then, the thermonuclear instability of the burning plasma around this point is studied with a linear analysis. It is found that this instability cannot be excited, due to the fact that the plasma is far from ignition.