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核燃料循环过程中,裂变材料经常以铀溶液的形式存在。由于操作不当等因素,铀溶液系统可能发生核临界事故,释放出大量能量和放射性物质,因此,铀溶液系统的临界安全是核安全技术研究的重点之一。本工作针对竖直圆柱开口容器中的铀溶液系统进行临界事故瞬态模拟分析。选取6群缓发点堆中子动力学模型计算系统功率,
During nuclear fuel cycles, fissile materials often exist as uranium solutions. Due to improper operation and other factors, uranium solution system may occur nuclear critical accident, releasing a large amount of energy and radioactive material. Therefore, the critical safety of uranium solution system is one of the focuses of nuclear safety technology. In this work, transient simulation analysis of critical accident in uranium solution system in vertical cylindrical open vessel was carried out. Select 6 groups of reactor point reactor neutron dynamics model to calculate the system power,