With the development of small modular reactors, the hydrogen risk reducing technology cannot be ignored. Special safety facilities of small modular reactor (SMR) are investigated and studied, and a serious accident analysis program model for SMR is established. The combination of Pre-inerting and hydrogen recombination was used to control the hydrogen risk. The effectiveness of the hydrogen control system is analyzed by using the GASFLOW program. The results show that the volume fraction of hydrogen in the containment dome is higher than that in the other parts of the containment during the calculation. Because of the small size and tight internal structure, hydrogen accumulates in the narrow channel, which increases the hydrogen concentration in the local channel. Inerting reduces the concentration of oxygen in the containment and effectively controls the possibility of flame acceleration and blasting transition in high hydrogen concentration regions.
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2018 26th International Conference on Nuclear Engineering
July 22–26, 2018
London, England
Conference Sponsors:
- Nuclear Engineering Division
ISBN:
978-0-7918-5143-2
PROCEEDINGS PAPER
Hydrogen Risk Reducing Technology in Small Modular Reactor
YanLin Chen,
YanLin Chen
China Nuclear Power Engineering Co., Ltd., Beijing, China
Search for other works by this author on:
XueFeng Lv
XueFeng Lv
North China Electric Power University, Beijing, China
Search for other works by this author on:
YanLin Chen
China Nuclear Power Engineering Co., Ltd., Beijing, China
XueFeng Lv
North China Electric Power University, Beijing, China
Paper No:
ICONE26-81705, V001T13A014; 5 pages
Published Online:
October 24, 2018
Citation
Chen, Y, & Lv, X. "Hydrogen Risk Reducing Technology in Small Modular Reactor." Proceedings of the 2018 26th International Conference on Nuclear Engineering. London, England. July 22–26, 2018. V001T13A014. ASME. https://doi.org/10.1115/ICONE26-81705
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