论文部分内容阅读
核电厂在严重事故状态下,放射性物质以气体、蒸汽、气溶胶形式释放。其中,气溶胶是悬浮在气空间的固态或液态颗粒,是放射性物质释放的主要载体,其在空间中的迁移和沉积等过程较为复杂,受影响因素较多,在反应堆安全领域倍受关注。在大型先进压水堆AP1000中,非能动安全壳冷却系统的设计形成了安全壳冷壁,增强了严重事故情况下气溶胶的热泳及扩散泳作用,使
Nuclear power plant in the event of a serious accident, radioactive substances in the form of gas, steam, aerosol release. Among them, aerosols are solid or liquid particles suspended in airspace, which is the main carrier for the release of radioactive materials. The migration and deposition process of aerosols in space are complicated and are influenced by many factors, attracting much attention in the field of reactor safety. In the large-scale advanced PWR AP1000, the design of passive containment cooling system forms a containment wall and enhances aerosol thermal and diffusive swimming under severe accident conditions.