自然循环参数稳态变化计算研究  

Study on steady state change calculation of natural circulation parameters

作　　者：周涛[1,2,3] 朱亮宇 陈杰 张家磊[1,2] 黄彦平 ZHOU Tao;ZHU Liangyu;CHEN Jie;ZHANG Jialei;HUANG Yanping(School of Nuclear Science and Engineering,North China Electric Power University,Beijing 102206,China;Institute of Nuclear Thermal-hydraulic Safety and Standardization,North China Electric Power University,Beijing 102206,China;Beijing Key Laboratory of Passive Safety Technology for Nuclear Energy,North China Electric Power University,Beijing 102206,China;KeyLaboratory of Thermal-hydraulics Technology for Nuclear Reactors,Chengdu 610041,China)

机构地区：[1]华北电力大学核科学与工程学院,北京102206 [2]华北电力大学核热工安全与标准化研究所,北京102206 [3]非能动核能安全技术北京市重点实验室,北京102206 [4]中核核反应堆热工水力技术重点实验室,成都610041

出　　处：《华电技术》2019年第1期9-12,共4页HUADIAN TECHNOLOGY

基　　金：北京市自然科学基金(3172032);中核核反应堆热工水力技术重点实验室基金(20130901);核反应堆系统设计技术重点实验室基金(2015BJ0151)

摘　　要：稳态下自然循环各参数对于提高自然循环能力有着重要的作用。研究稳态情况下,自然循环流量等参数的变化规律。在给定相关参数的基础上,通过改变冷却段出口温度调整有效压头,并在更新相关的物性参数值后,分析不同参数下自然循环流量、各压头、冷却段冷却功率的变化规律。结果表明:冷却段出口冷却剂密度及比焓,随冷却段出口冷却剂温度增加而逐渐增加;加热段功率增加会引起自然循环流量增加。所得结果为提高自然循环能力及进一步研究提供参考。The parameters of natural circulation in steady state play an important role in improving the capacity of natural circulation.The change law of natural circulation flow and other parameters in steady state are studied.Given related parameters,the effective pressure head can be adjusted by changing the outlet temperature of the cooling section.After updating the related physical property parameters,the change laws of natural circulation flow rate,pressure head and cooling power of the each cooling section under different parameters are analyzed.The results show the coolant density and specific enthalpy at the outlet of cooling section increase gradually with the increase of the coolant temperature at the outlet of cooling section.The increase of power in heating section will cause the increase of natural circulation flow rate.The results provide reference for improving the natural circulation capacity and further research.

关 键 词：稳态 自然循环 出口温度 循环流量 

分 类 号：TL4[核科学技术—核技术及应用]