A barrier that limits the development of the nuclear power plants is the problem of the depressurization for severe accidents. The present work addresses this issue by adding the dedicated severe accident depressurization system that is placed on the top of the pressurizer. This design enables the excessive heat to be directly pumped into the atmosphere to lower the pressure in the containment. The theoretical and numerical results indicated that the addition of the dedicated severe accident depressurization system does not affect the performance of the second generation of PWRs. More importantly, this design not only significantly reduces the LERF value but also facilitates the modification of the present structure.
- Nuclear Engineering Division
Discussing the Modification of Dedicated Lines Used for Severe Accident Depressurization
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Zhang, B, Liu, J, Liu, X, Gao, Y, & Gong, A. "Discussing the Modification of Dedicated Lines Used for Severe Accident Depressurization." Proceedings of the 2013 21st International Conference on Nuclear Engineering. Volume 1: Plant Operations, Maintenance, Engineering, Modifications, Life Cycle and Balance of Plant; Nuclear Fuel and Materials; Radiation Protection and Nuclear Technology Applications. Chengdu, China. July 29–August 2, 2013. V001T01A018. ASME. https://doi.org/10.1115/ICONE21-15329
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