
Fusion has significant potential safety advantages. There is a strong incentive for designing fusion plants to ensure that inherent safety will be achieved. Accordingly, both the Tokamak Power Systems Studies and MINIMARS have identified inherent safety as a design goal. A necessary condition is for the blanket to maintain its configuration and integrity under all credible accident conditions. A main problem is caused by afterheat removal in an accident condition. In this regard, it is highly desirable to achieve the required level of protection of the plant capital investment and limitation of radioactivity release by systems that rely only on inherent properties of matter (e.g., thermal conductivity, specific heat, etc.) and without the use of active safety equipment. This paper assesses the conditions under which inherent safety is feasible. Three types of accident conditions are evaluated for two blankets. The blankets evaluated are a self cooled vanadium/lithium blanket and a self-cooled vanadium/Flibe blanket. The accident conditions evaluated are: (1) loss-of-flow accident; (2) loss-of-coolant accident (LOCA); and (3) partial loss-of-coolant accident.
Power Density, After-Heat, Cost, Neutral-Particle Transport, Reactor Components 700206* -- Fusion Power Plant Technology-- Environmental Aspects, Lithium, Elements, Wall Loading, Lithium Alloys, Alkali Metals, Metals, 700201 -- Fusion Power Plant Technology-- Blanket Engineering, Radiation Transport, Alloys, Neutron Transport, Breeding Blankets, 70 Plasma Physics And Fusion Technology, Vanadium Alloys, Safety
Power Density, After-Heat, Cost, Neutral-Particle Transport, Reactor Components 700206* -- Fusion Power Plant Technology-- Environmental Aspects, Lithium, Elements, Wall Loading, Lithium Alloys, Alkali Metals, Metals, 700201 -- Fusion Power Plant Technology-- Blanket Engineering, Radiation Transport, Alloys, Neutron Transport, Breeding Blankets, 70 Plasma Physics And Fusion Technology, Vanadium Alloys, Safety
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