应急排风对缓解核事故辐射后果的理论计算  

Theoretical Calculation and Analysis of Emergency Ventilation to Reduce Nuclear Accident Consequence

作　　者：林晓玲[1] 杨永新[1] 

机构地区：[1]中国人民解放军92609部队

出　　处：《核动力工程》2013年第2期60-61,93,共3页Nuclear Power Engineering

摘　　要：针对核舰船核事故,建立反应堆舱放射性核素活度计算模型,定量计算应急排风对降低堆舱浓度的影响。计算分析表明:应急排风对于缓解核事故后果具有显著作用,其缓解速度取决于应急排风量与堆舱净空间体积的比值;应急排风运行30 min,可将堆舱放射性核素活度降低90%。The computational model of radionuclide activities in reactor compartment was set up for the nuclear accident of nuclear ships. The effect on the reducing of radioactive concentration by emergency ventilator was calculated quantitatively. It showed that the emergency Ventilation had a significant effect on the reducing of the radiological consequence, the reduction effect depends on the ratio of ventilation flux to the net volume of the reactor compartment, and the greater the ratio, the faster the reduction. Within half an hour after the emergency exhaust operated, the activity in the reactor compartment can be reduced by 90%.

关 键 词：应急排风 放射性核素活度 定量分析 

分 类 号：TL943[核科学技术—辐射防护及环境保护]