Publication: Integrated modeling of fuel flows in the plasma and in the injection and pumping systems for the DEMO-FNS fusion neutron source СОВМЕСТНОЕ МОДЕЛИРОВАНИЕ ТОПЛИВНЫХ ПОТОКОВ В ПЛАЗМЕ И В СИСТЕМАХ ИНЖЕКЦИИ И ОТКАЧКИ ДЕМО-ТИН
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2020
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Ananyev, S. S.
Dnestrovsky, A. Yu.
Kukushkin, A. S.
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© 2020 National Research Center Kurchatov Institute. All rights reserved.The paper describes a FC-FNS system code modification, which makes it possible to include fuel flows in the core and divertor plasma into the model. A new approach to the description of the hydrogen isotopes density in the plasma core is proposed, based on the different confinement times of ions from different sources. The model is supplemented by a new scenario of gas supply to the heating injector system, which provides the injection of a D0 + T0 beam with a closed gas cycle. The flows in the fuel cycle (FC) of the DEMO-FNS facility were estimated and the fuel injection parameters were selected that ensure the specified conditions in the core and divertor plasma with varying the gas isotopic composition in the heating injectors. The working range of the hydrogen isotopes composition in the divertor plasma is determined, at which the required tritium fraction in the plasma core is provided. An estimate of the total tritium amount in the operating facility FC was obtained from 850 to 1150 g.
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Ananyev, S. S. Integrated modeling of fuel flows in the plasma and in the injection and pumping systems for the DEMO-FNS fusion neutron source СОВМЕСТНОЕ МОДЕЛИРОВАНИЕ ТОПЛИВНЫХ ПОТОКОВ В ПЛАЗМЕ И В СИСТЕМАХ ИНЖЕКЦИИ И ОТКАЧКИ ДЕМО-ТИН / Ananyev, S.S., Dnestrovsky, A.Yu., Kukushkin, A.S. // Problems of Atomic Science and Technology, Series Thermonuclear Fusion. - 2020. - 43. - № 4. - P. 96-109. - 10.21517/0202-3822-2020-43-4-96-109