非能动安全壳冷却系统空气流道阻力特性及结构敏感性研究  

Study on Characteristics and Sensitive Factors of PCS Air Flow Path Resistance

作　　者：潘新新[1] 向文娟[1] 宋春景[1] 

机构地区：[1]上海核工程研究设计院,上海200233

出　　处：《核动力工程》2016年第2期122-126,共5页Nuclear Power Engineering

基　　金：国家重大科技专项项目(2011ZX06002-001)

摘　　要：应用经试验验证的计算流体动力学(CFD)程序分析第三代先进核电厂非能动安全壳冷却系统(PCS)空气流道阻力特性。结果表明:空气流道阻力系数随着流速的增加变化不大,主要阻力出现在空气入口、导向叶片和上升通道;导向叶片的设计可降低流动损失,可通过对叶片形状进行优化减小阻力系数;受安全壳传热需求限制,上升通道与下降通道之间的间距比取1∶3是合适的。The air flow path resistances of the passive containment cooling system （PCS） in advanced nuclear power plants are analyzed with computational fluid dynamics （CFD） method which is verified and validated by tests. The results show that the resistance factors vary little as the flow velocity increases, while the main losses generated at air inlets, turning vane and inner annular. The flow resistances can be depressed by optimizing the turning vane geometry. Increasing the space of inner annular can reduce the resistance factor. Considering the heat transfer enhancement, the space ratio 1 ： 3 between inner annular and outer annular is appropriate.

关 键 词：计算流体动力学(CFD) 空气流道阻力 导向叶片 间距比 

分 类 号：TL364.3[核科学技术—核技术及应用]