安全壳冷却系统蒸汽冷凝传热研究综述

摘要

Part of new generation reactors are widely using passive containment cooling system (PCCS) in order to export the decay heat and maintain the integrity of the con‐tainment under long term post accidents .During the steam condensation ,the presence of non‐condensable gases (air/hydrogen) is an important issue affecting the efficiency of the w hole thermodynamic process .For this reason ,many researchers have investigated it by theoretical or experimental methods .In this paper ,the review of steam condensa‐tion with non‐condensable gases under nuclear plant accident was made .By the depth and comprehensive analysis of the heat transfer process , specific comments were proposed aimed at enhancing the thermal‐hydraulic research foundation of steam conden‐sation under nuclear power plant containment cooling system condition .%为保证事故条件下核电厂安全壳的完整性，新一代核电厂广泛采用安全壳冷却系统对事故中释放的蒸汽进行冷却，达到持续稳定导出堆芯蓄热与衰变余热的目的。含不凝性气体（空气、氢气等）的蒸汽在安全壳换热壁面上的冷凝传热成为疏导安全壳内部热量的重要手段。本工作对核电厂事故条件下含不凝性气体蒸汽的冷凝传热进行综述研究，深入全面分析传热过程，提出针对性意见，为核电厂安全壳冷却系统的热工水力研究奠定了基础。