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Thermal Analysis of Breeder Unit for Helium Cooled Solid Breeder Blanket of Chinese Fusion Engineering Test Reactor

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Abstract

As one of the candidate tritium breeding blankets for Chinese Fusion Engineering Test Reactor, a kind of helium cooled solid tritium breeder blanket was proposed. The blanket uses the pebbles of lithium ceramics (Li4SiO4) and beryllium as tritium breeder and neutron multiplier, respectively. The thermal conditions of breeder unit directly affect the performance of tritium breeding and the safety of blanket. Therefore, thermal analysis of the pebble beds is of vital importance for a reliable blanket design. State steady thermal hydraulic analysis of the breeder unit has been performed, showing that the temperature satisfied the corresponding material temperature limits. State steady thermo-mechanical analysis has also been carried out. The maximum von Mises stress was within the allowable stress. Parametric sensitivity studies have been conducted to investigate the influence of main parameters (e.g. coolant mass flow rate, inlet temperature and pebble bed thermal conductivity) on the temperature distribution of the pebble beds and cooling plates.

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Acknowledgments

This work is supported by a scholarship from China Scholarship Council (File No. 201406340091) and by the National Special R&D Programme for Magnetic Confinement Fusion Energy of China funded by Ministry of Science and Technology of the People’s Republic of China (Grant Nos. 2014GB111005 and 2014GB110001).

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Authors and Affiliations

  1. School of Nuclear Science and Technology, University of Science and Technology of China, Hefei, 230027, Anhui, China

    Guangming Zhou, Min Li, Qianwen Liu, Shuai Wang, Zhongliang Lv, Hongli Chen & Minyou Ye

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  1. Guangming Zhou
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  2. Min Li
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  3. Qianwen Liu
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  4. Shuai Wang
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  7. Minyou Ye
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Correspondence to Guangming Zhou.

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Zhou, G., Li, M., Liu, Q. et al. Thermal Analysis of Breeder Unit for Helium Cooled Solid Breeder Blanket of Chinese Fusion Engineering Test Reactor. J Fusion Energ 34, 339–345 (2015). https://doi.org/10.1007/s10894-014-9798-y

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