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CONCEPTUAL DESIGN OF PEBBLE DROP DIVERTOR

机译:滴状分流器的概念设计

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A pebble drop divertor concept is proposed for future fusion reactor. The marked feature of this system is the use ofrnmulti-layer pebbles that consists of a central kernel and some coating layers, as a divertor surface component. By usingrnmulti-layer pebbles, pebble drop divertor have the advantages such as steady state wall pumping with low bulk tritiumrnretention. The performance of whole divertor system depends on the characteristics of the multi-layer pebble. Particularlyrnthe maximum heat load of the system is determined by the dimensions, the layer structure and the material of a kernel. Arnkernel also has an important role to determine surface temperature, which affects the wall pumping efficiency. This paperrnpresents the numerical results of the maximum allowable heat load and the surface temperature of the divertor pebble. Fromrnthe numerical estimation of thermal stress and surface temperature, it is found that the radius of divertor pebble with ceramicrnkernel should be 0.5 - 1 mm.
机译:提出了一种用于未来聚变反应堆的卵石分流器概念。该系统的显着特征是使用由中心核和一些涂层组成的多层卵石作为分流器表面组件。通过使用多层卵石,卵石滴偏滤器具有的优点是例如具有低体积with保留的稳态壁泵送。整个分水器系统的性能取决于多层卵石的特性。特别地,系统的最大热负荷取决于尺寸,层结构和籽粒的材料。 Arnkernel在确定表面温度方面也起着重要作用,这会影响壁泵的效率。本文给出了最大允许热负荷和分流器卵石表面温度的数值结果。从热应力和表面温度的数值估计,发现带有陶瓷核的偏滤器卵石的半径应为0.5-1 mm。

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