Nuclear responses of WCCB TBM with different container designs
| Autor: | Wenhai Guan, Yoshinori Kawamura, Kentaro Hattori, Takanori Hirose, Hiromasa Iida, Hyoseong Gwon, Hisashi Tanigawa |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Design modification
Materials science Mechanical Engineering Nuclear engineering Blanket Neutron radiation Fusion power urologic and male genital diseases 01 natural sciences 010305 fluids & plasmas Breeder (animal) Nuclear Energy and Engineering 0103 physical sciences Container (abstract data type) General Materials Science Tritium sense organs Electric power skin and connective tissue diseases 010306 general physics Civil and Structural Engineering |
| Zdroj: | Fusion Engineering and Design. 157:111672 |
| ISSN: | 0920-3796 |
| DOI: | 10.1016/j.fusengdes.2020.111672 |
| Popis: | In test blanket module (TBM) program blanket major functions, which are tritium production, heat extraction for electric power production, and neutron shielding, will be demonstrated under fusion reactor environments in ITER. National Institutes for Quantum and Radiological Science and Technology (QST) has performed developments of water cooled ceramic breeder (WCCB) TBM as a primary concept in Japan. The container design of WCCB TBM was changed from the Box-shaped to a cylindrical structure to increase tritium breeding capability while maintaining pressure resistance under In-Box LOCA caused by water ingress into the container. The nuclear responses related to the blanket major functions would be changed with the container design change. The nuclear responses of WCCB TBM with the container design change were evaluated and the effects of the changed nuclear responses were described in this study. Tritium production rate increased by about 2 times with the container design changes. In contrast neutron shielding performance decreased due to the container design change. Degradation of neutron shielding in the cylindrical TBM led to an increase in nuclear heating of the TBM frame as well as an average of neuron flux behind TBM-set. |
| Databáze: | OpenAIRE |
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