压水堆核电站一回路~(16)N源项计算模型的优化 |
| |
引用本文: | 周静,汪细河,乔培鹏.压水堆核电站一回路~(16)N源项计算模型的优化[J].核科学与工程,2016(1):10-15. |
| |
作者姓名: | 周静 汪细河 乔培鹏 |
| |
作者单位: | 深圳中广核工程设计有限公司上海分公司,上海市 |
| |
摘 要: | ~(16)N是压水堆一回路冷却剂中的主要活化产物,也是一回路中的主要辐射源。本文在传统~(16)N源项计算模型的基础上,根据堆芯内冷却剂的流向,考虑堆芯区域以及下降段区域的中子通量差异,将堆芯划分为活化区域以及反射区域,并建立了相应的计算模型,以典型三代压水堆核电站为例进行了计算与验证,计算结果与技术文件吻合良好,偏差在10%以内,验证了模型的正确性。最后分析了一回路典型部位的~(16)N平衡放射性活度浓度,发现在反应堆堆芯出口处最高,随着冷却剂流向逐步减少。研究结果表明,优化的计算模型可更准确计算压水堆核电站冷却剂的~(16)N源项,为分析反应堆一回路的辐射源项提供参考依据。
|
关 键 词: | 压水堆 反应堆冷却剂 16 N 源项 |
Optimized Calculation Model of 16 N radiation sources in main coolant of PWR |
| |
Abstract: | As the coolant to pass through each activation region in reactor vessel,the neutron in the region will activate the Oxygen in water into activation product,such as16 N.16 N is the main product,and it is the most important radiation sources in primary side. A 16 N radiation sources model based on conventional method,and primary coolant flow direction,divided core area to activation regions and reflection regions. To proved the validity of calculating model,the integrative calculation of 16 N radiation sources in main coolant was completed. Analyzed the coolant typical 16 N model to equilibrium radiation sources,discover the radiation sources in the reactor was the max,reduced along with the coolant. Study result indicated, optimized calculation model more accurate calculation on the 16 N source,. |
| |
Keywords: | PWR coolant 16 N radiation sources |
本文献已被 CNKI 万方数据 等数据库收录! |
|