Thermo-mechanical design of fuel blankets for Tokamak

Haoyu Chang; Jiangchen Jin

doi:10.1117/12.2652932

10 November 2022 Thermo-mechanical design of fuel blankets for Tokamak

Haoyu Chang, Jiangchen Jin

Proceedings Volume 12331, International Conference on Mechanisms and Robotics (ICMAR 2022); 123310F (2022) https://doi.org/10.1117/12.2652932
Event: International Conference on Mechanisms and Robotics (ICMAR 2022), 2022, Zhuhai, China

Abstract

One of the main challenges in Tokomak fusion reactor is the design of the breeding blanket since it is the first wall to the plasma. It can be seriously damaged due to the high heat flux and particle impact. However, liquid blankets could be a perfect solution to resist structural damage on the breeding blankets. On this basis, we designed a preliminary liquid blanket structure, using porous tungsten as frames and producing liquid film on frames’ surface, and investigated the thermo-mechanical properties of a porous medium unit based on COMSOL Multiphysics. According to the analysis, under compressive pressure load, the unit structure was stable mechanically. Besides, as for thermal analysis, the porous medium was great for injecting slow fuels and temperature can drop dramatically through the width. Hence, it verifies the stability and feasibility of such a structure. Nevertheless, both simulations could be further improved by revising the model and updating the initial conditions. Overall, these results shed light on future breeding blanket design.

Citation Download Citation

Haoyu Chang and Jiangchen Jin "Thermo-mechanical design of fuel blankets for Tokamak", Proc. SPIE 12331, International Conference on Mechanisms and Robotics (ICMAR 2022), 123310F (10 November 2022); https://doi.org/10.1117/12.2652932

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