Waste management scenario in the hot cell and waste storage for DEMO
Waste management scenario in the hot cell and waste storage for DEMO
复制标题
DEMO 热室中的废物管理场景和废物储存
DOI：
10.1016/j.fusengdes.2014.04.059
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发表时间：
2014
影响因子：
1.7
通讯作者：
Yoshiteru Sakamoto
中科院分区：
文献类型：
--
作者：
Youji Someya;Kenji Tobita;Satoshi Yanagihara;Masatoshi Kondo;Hiroyasu Utoh;Nobuyuki Asakura;Kazuo Hoshino;Makoto Nakamura;Yoshiteru Sakamoto
从聚变堆设计的角度来看，定期更换中产生的放射性废物的管理策略可能是重要的，因为它对工厂中的热室和废物储存的设计有很大的影响。在聚变动力反应堆的更换期间，包层或偏滤器模块的组件需要从反应堆移除，以便最小化真空容器中的远程维护并获得合理的工厂可用性。在热室中，模块将从组件的背板移除。在这里，请注意，主动冷却必须通过不会由于氚和钨尘的分散而导致热室环境污染的方式进行。在这个意义上，采用的冷却方案是将组件中现有的冷却水管道连接到热室中的不同冷却水系统。另一方面，假设包层和偏滤器的结构材料（F82H）由于其高接触剂量率而不被再循环。它应该被粉碎成小块，以减少废物的体积和所需的存储空间。在本文中，废物管理方案的基本思想和概念设计的热室和废物存储的演示已提出。
Management strategy of radioactive waste generated in periodic replacement may be important in the point of view of fusion reactor design, because it has a large impact on the design of the hot cell and waste storage in the plant. In the replacement period of a fusion power reactor, the assembly of blanket or divertor modules needs to be removed from the reactor in order to minimize remote maintenance in the vacuum vessel and to attain reasonable plant availability. In the hot cell, the modules will be removed from the back plate of the assembly. Here, note that the active cooling must be done by a way that does not cause contamination of the hot cell environment due to dispersion of tritium and tungsten dust. In this sense, the cooling scenario is adopted that the existing pipe of cooling water in the assembly is connected to a different cooling water system in the hot cell. On the other hand, it is assumed that the structural material (F82H) of the blanket and divertor is not recycled due to its high contact dose rate. It should be crushed into small pieces to reduce volume of the waste and required storage space. In this paper, the basic idea of the waste management scenario and the conceptual design in the hot cell and waste storage for DEMO has been proposed.