Publication: Integrated modeling of fuel flows in the plasma and the injection and pumping systems for the DEMO-FNS fusion neutron source КОМПЛЕКСНОЕ МОДЕЛИРОВАНИЕ ПОТОКОВ ТОПЛИВА В ПЛАЗМЕ И СИСТЕМАХ ИНЖЕКЦИИ И ОТКАЧКИ ДЛЯ ДЕМОНСТРАЦИОННОГО ТЕРМОЯДЕРНОГО ИСТОЧНИКА НЕИТРОНОВ ДЕМО-ТИН
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2021
Авторы
Ananyev, S. S.
Dnestrovsky, A. Yu.
Kukushkin, A. S.
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© 2021 National Research Center Kurchatov Institute. All rights reserved.The paper describes an FC-FNS system code modification that makes it possible to include fuel flows in the core and divertor plasma into the model. A new approach to the description of the density of hydrogen isotopes in the plasma core is proposed, based on the different confinement times for ions from different sources. The model is supplemented by a new scenario of gas supply to the neutral beam injection 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 fusion neutron source are estimated and the fuel injection parameters are selected that ensure the specified conditions in the core and divertor plasma with varying the isotopic gas composition in the heating injectors. The working range of the hydrogen isotope 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 FC system is obtained in the range from 850 to 1150 g.
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Ananyev, S. S. Integrated modeling of fuel flows in the plasma and the injection and pumping systems for the DEMO-FNS fusion neutron source КОМПЛЕКСНОЕ МОДЕЛИРОВАНИЕ ПОТОКОВ ТОПЛИВА В ПЛАЗМЕ И СИСТЕМАХ ИНЖЕКЦИИ И ОТКАЧКИ ДЛЯ ДЕМОНСТРАЦИОННОГО ТЕРМОЯДЕРНОГО ИСТОЧНИКА НЕИТРОНОВ ДЕМО-ТИН / Ananyev, S.S., Dnestrovsky, A.Yu., Kukushkin, A.S. // Problems of Atomic Science and Technology, Series Thermonuclear Fusion. - 2021. - 44. - № 2. - P. 65-77. - 10.5325/COMPLITSTUDIES.58.3.0647