Corrosion product in the primary coolant is formed mainly by structure material corrosion and activated corrosion product. Under normal condition, source term of corrosion product maintains at a low level while its radioactive concentration reaches a peak value after the primary is injected with hydrogen peroxide during shutdown oxygenation operation. Following the procedure of corrosion product elimination, analysis has been made on effect which accumulated corrosion product exerts on RCV pre-filter and mixed bed demineralizer. Different primary coolant source terms and the cold shutdown peak value of corrosion product have been considered in the analysis. Under the assumption that dissolved and particle dissolved product has a fixed ratio of 1:1, the surface dose rate of RCV pre-filter varies as the different primary coolant varies. Nuclides proportion has been listed and charted based on the calculation. If cold shutdown condition has been taken in primary coolant source term calculation, then the RCV pre-filter surface dose rate will reach 345Sv/h; If primary coolant design value has been taken in source term calculation, then the RCV pre-filter surface dose rate will reach 42.2Sv/h; If 1/3 primary coolant design value has been taken in source term calculation, then the RCV pre-filter surface dose rate will reach 14.1Sv/h. For the waste resin in RCV mixed bed demineralizer, the corrosion product leaves a small contribution (less than 5%) if the cold shutdown is not considered in primary coolant source term calculation; and a contribution of over 90% if the cold shutdown is considered. The analysis provides a radiation safety analysis basis for NPP solid waste.
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2017 25th International Conference on Nuclear Engineering
July 2–6, 2017
Shanghai, China
Conference Sponsors:
- Nuclear Engineering Division
ISBN:
978-0-7918-5785-4
PROCEEDINGS PAPER
Analysis of Primary Coolant Corrosion Product Effect on Solid Waste Source Term Available to Purchase
Wang Xiaoxia,
Wang Xiaoxia
China Nuclear Power Engineering Co., LTD., Beijing, China
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Li Zhuoran,
Li Zhuoran
China Nuclear Power Engineering Co., LTD., Beijing, China
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Zhang Liying,
Zhang Liying
China Nuclear Power Engineering Co., LTD., Beijing, China
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You Wei,
You Wei
China Nuclear Power Engineering Co., LTD., Beijing, China
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Liu Song,
Liu Song
China Nuclear Power Engineering Co., LTD., Beijing, China
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Mi Aijun,
Mi Aijun
China Nuclear Power Engineering Co., LTD., Beijing, China
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Mao Yawei,
Mao Yawei
China Nuclear Power Engineering Co., LTD., Beijing, China
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Gao Guiling
Gao Guiling
China Nuclear Power Engineering Co., LTD., Beijing, China
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Wang Xiaoxia
China Nuclear Power Engineering Co., LTD., Beijing, China
Li Zhuoran
China Nuclear Power Engineering Co., LTD., Beijing, China
Zhang Liying
China Nuclear Power Engineering Co., LTD., Beijing, China
You Wei
China Nuclear Power Engineering Co., LTD., Beijing, China
Liu Song
China Nuclear Power Engineering Co., LTD., Beijing, China
Mi Aijun
China Nuclear Power Engineering Co., LTD., Beijing, China
Mao Yawei
China Nuclear Power Engineering Co., LTD., Beijing, China
Gao Guiling
China Nuclear Power Engineering Co., LTD., Beijing, China
Paper No:
ICONE25-66945, V007T10A018; 6 pages
Published Online:
October 17, 2017
Citation
Xiaoxia, W, Zhuoran, L, Liying, Z, Wei, Y, Song, L, Aijun, M, Yawei, M, & Guiling, G. "Analysis of Primary Coolant Corrosion Product Effect on Solid Waste Source Term." Proceedings of the 2017 25th International Conference on Nuclear Engineering. Volume 7: Fuel Cycle, Decontamination and Decommissioning, Radiation Protection, Shielding, and Waste Management; Mitigation Strategies for Beyond Design Basis Events. Shanghai, China. July 2–6, 2017. V007T10A018. ASME. https://doi.org/10.1115/ICONE25-66945
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