Abstract:
Based on the NRC technical requirements on NPP control room habitability assessment,and considering the characteristics of the improved second generation NPPs in China,this paper developed a complete dose assessment model for control room habitability.Contrasting to the existing model in China,this model is applicable for DBA and severity accident,and the short term atmospheric diffusion factor can be calculated using the combined wake mode.By considering the zoning of habitable area and the design characteristics of the ventilation system,the effects of un-filtrated air leakage from the building and the ventilation system on the assessment calculation can be considered.
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