AP1000 ADS-4阀门夹带卸压实验模化分析

Analysis of ADS-4 Entrainment and Depressurization Experiment Scaling for AP1000

摘要: 本文对AP1000 ADS-4阀门开启后反应堆冷却剂系统（RCS）的夹带卸压现象进行限直径、降高度、等物性模化分析。主要包含ADS-4阀门支管夹带模化、RCS降压模化及反应堆上腔室夹带沉积模化。通过选择合理的无量纲准则数和对守恒方程进行无量纲分析，获得相关热工水力现象的模化准则，最终得到实验台架几何和热工水力参数。

Abstract: In this paper, the limited diameter, reduced height and scaling analysis with identical working fluid were conducted on AP1000 ADS-4 entrainment and depressurization process, which consisted of ADS-4 branch line entrainment scaling, RCS depressurization scaling and reactor upper plenum entrainment scaling. The reasonable dimensionless criteria of relative thermal-hydraulic phenomenon were chosen and derived by analyzing conservation equations. Experimental geometric and thermal-hydraulic parameters were finally obtained.