In order to ensure the safety of fuel rods in nuclear reactor, it is necessary to consider the condition of the power ramp during reactor operation, which may cause breakage risk of fuel rod at the time of pellet-cladding interaction (PCI) appearing. To analyze this phenomenon and reduce the risk, a performance analysis model for fuel rod is developed to carry out the steady state and transient simulation using commercial software COSMOL. The full model has three main computational models, which are heat transfer model, mechanical model and internal pressure model. The calculation results show that the stress and strain of NHR200-II fuel rods has enough margins during the power ramp process, which indicates that the risks of fuel rod damage are very low.
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2018 26th International Conference on Nuclear Engineering
July 22–26, 2018
London, England
Conference Sponsors:
- Nuclear Engineering Division
ISBN:
978-0-7918-5145-6
PROCEEDINGS PAPER
Analysis on Pellet-Cladding Interaction of Fuel Rod During Power Ramp of NHR200-II
Tianshan Kang,
Tianshan Kang
Tsinghua University, Beijing, China
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Songyang Li,
Songyang Li
Tsinghua University, Beijing, China
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Dingqu Wang,
Dingqu Wang
Tsinghua University, Beijing, China
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Yueyuan Jiang,
Yueyuan Jiang
Tsinghua University, Beijing, China
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Weihua Li
Weihua Li
Tsinghua University, Beijing, China
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Tianshan Kang
Tsinghua University, Beijing, China
Songyang Li
Tsinghua University, Beijing, China
Dingqu Wang
Tsinghua University, Beijing, China
Yueyuan Jiang
Tsinghua University, Beijing, China
Weihua Li
Tsinghua University, Beijing, China
Paper No:
ICONE26-81596, V003T02A029; 5 pages
Published Online:
October 24, 2018
Citation
Kang, T, Li, S, Wang, D, Jiang, Y, & Li, W. "Analysis on Pellet-Cladding Interaction of Fuel Rod During Power Ramp of NHR200-II." Proceedings of the 2018 26th International Conference on Nuclear Engineering. Volume 3: Nuclear Fuel and Material, Reactor Physics, and Transport Theory. London, England. July 22–26, 2018. V003T02A029. ASME. https://doi.org/10.1115/ICONE26-81596
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