PRS换热器蒸汽凝结换热模型研究  

Study on Steam Condensation Model of A PRS Heat Exchanger

作　　者：饶彧先[1] 于雷[1] 傅晟威[1] 

机构地区：[1]海军工程大学核能科学与工程系,武汉430033

出　　处：《核动力工程》2016年第1期34-37,共4页Nuclear Power Engineering

摘　　要：使用RELAP5/MOD3.2程序对某型核动力装置二次侧非能动余热排出系统(PRS)1:1实验装置进行稳态计算,一些工况下计算结果同实验结果偏差较大。研究了汽-液界面剪切应力及系统高压等条件对层流和湍流状态下竖直管内蒸汽凝结模型的影响,并对模型进行了改进。改进后的RELAP5程序对该系统1:1实验装置进行稳态和瞬态计算,计算结果同实验结果符合良好。Steady-state calculations are pertormea using ~LAra/lVlOL~.z coue Lur a tt：~t facility which has the same size as one type of secondary-side passive residual heat removal system. In some conditions there are obvious differences between calculation results and experimental data. Thereby, the steam vertical in-tube condensation models for laminar and turbulent conditions in RELAP5 code are improved by considering the interracial shear stress between vapor and liquid film and high system pressure, respectively. Steady-state and transient calculations are performed using the improved RELAP5 code for the test facility. The simulation results give a good agreement with the experimental data.

关 键 词：二次侧非能动余热排出系统(PRS) 自然循环 蒸汽冷凝模型 

分 类 号：TL37[核科学技术—核技术及应用]