Accelerator driven subcritical system (ADS) has been considered as an advanced nuclear waste transmutation facility with inherent safety feature. Nowadays, Institute of Modern Physics, Chinese Academy of Science (IMPCAS) has made a plan to research and develop ADS, which project was formally approved by the National Development and Reform Commission at the end of 2015. In order to pursue high transmutation rate of Minor Actinide (MA), a new concept design of the lead-bismuth cooled ADS is proposed in present work, in which a gravity-driven dense granular flow spallation target has been designed to substitute the traditional solid or liquid heavy metal spallation target. Sensitive parameters of the spallation target have been investigated, such as the radius and axial position of the spallation target, the size of heavy metal grains, the granular filling rate, the spallation neutron yield, and the distribution of neutron source. Furthermore, an optimized design of sub-critical reactor has been proposed with three zone loading pattern as a consequence of eliminating the power peak factor, which thermal power is 10MW with the operation cycle 600 EFPD. Finally, some important physical parameters in the coupling depletion system have been studied, including the effective multiplication factor k-eff, subcritical multiplication factor k-s, the change of beam current, time-dependent void and Doppler effect, fraction of effective delayed neutron, and the transmutation supporting ratio.
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2018 26th International Conference on Nuclear Engineering
July 22–26, 2018
London, England
Conference Sponsors:
- Nuclear Engineering Division
ISBN:
978-0-7918-5147-0
PROCEEDINGS PAPER
Neutronic Study on a New Concept of Accelerator Driven Subcritical System in China Available to Purchase
Jinyang Li,
Jinyang Li
Chinese Academy of Sciences, Lanzhou, China
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Long Gu,
Long Gu
Chinese Academy of Sciences, Lanzhou, China
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Cunfeng Yao,
Cunfeng Yao
Chinese Academy of Sciences, Lanzhou, China
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Dawei Wang,
Dawei Wang
Chinese Academy of Sciences, Lanzhou, China
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Tianji Peng,
Tianji Peng
Chinese Academy of Sciences, Lanzhou, China
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Yanlei Zhu
Yanlei Zhu
Chinese Academy of Sciences, Lanzhou, China
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Jinyang Li
Chinese Academy of Sciences, Lanzhou, China
Long Gu
Chinese Academy of Sciences, Lanzhou, China
Cunfeng Yao
Chinese Academy of Sciences, Lanzhou, China
Dawei Wang
Chinese Academy of Sciences, Lanzhou, China
Tianji Peng
Chinese Academy of Sciences, Lanzhou, China
Yanlei Zhu
Chinese Academy of Sciences, Lanzhou, China
Paper No:
ICONE26-81329, V005T05A007; 9 pages
Published Online:
October 24, 2018
Citation
Li, J, Gu, L, Yao, C, Wang, D, Peng, T, & Zhu, Y. "Neutronic Study on a New Concept of Accelerator Driven Subcritical System in China." Proceedings of the 2018 26th International Conference on Nuclear Engineering. Volume 5: Advanced Reactors and Fusion Technologies; Codes, Standards, Licensing, and Regulatory Issues. London, England. July 22–26, 2018. V005T05A007. ASME. https://doi.org/10.1115/ICONE26-81329
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