CERT试验WGOTHIC程序3D建模方法研究

摘要

The passive containment model has been developed using WGOTHIC. Condensation heat and mass transfer from the volumes to the containment shell, conduction through the shell,and evaporation from the shell to the riser were all calculated using the special CLIMEs model which is developed for PCS. In this paper, The WGOTHIC is used to model both condensation and evaporation heat and mass transfer process by distributed parameter method. The analysis results were compared to those from both lumped parameter method of WGOTHIC and CERT test bench. As preliminary code consolidation effort,it is feasible to use distributed parameter method of WGOTHIC code as a tool to analysis the passive containment response.%美国NRC批准应用WGOTHIC程序中集总参数法分析非能动核电厂DBA事故后安全壳响应,该程序采用 CLIME模型来模拟非能动安全壳冷却系统(PCCS)传热传质特性,即壳内蒸汽凝结、钢壳导热和壳外水膜蒸发过程.本论文研究 WGOTHIC 程序中分布参数法(3D 模型)分析 PCCS传热传质特性的可行性,并与该程序中集总参数法和 CERT 试验值两种方式对分析结果进行比较验证.结果表明WGOTHIC程序中分布参数法(3D模型)可用于分析PCCS传热传质特性,保守地进行非能动安全壳响应分析.