“华龙一号”非能动安全壳热量导出系统程序与STAR-CCM+程序耦合计算方法  

Research on the coupling calculation method using HPR1000 PCS code and STAR-CCM+program

作　　者：李精精 黄政 陈巧艳 LI Jingjing;HUANG Zheng;CHEN Qiaoyan(China Nuclear Power Engineering Co.,Ltd.,Beijing 100840,China)

机构地区：[1]中国核电工程有限公司,北京100840

出　　处：《应用科技》2023年第4期26-30,共5页Applied Science and Technology

基　　金：国家重点研发计划项目(2020YFB1901400)。

摘　　要：为更好地对“华龙一号”(Hua-long pressurized reactor 1000,HPR1000)非能动安全壳热量导出系统(passive containment heat removal system,PCS)周围的流场和浓度场进行分析,针对HPR1000 PCS基于漂移流模型开发了一套一维自然循环瞬态计算程序,并将该系统程序与STAR-CCM+程序开展耦合计算研究。PCS程序读取来自STAR-CCM+程序计算的温度、压力及气体组分参数开展计算,并将PCS传热管温度作为返回值传递给STAR-CCM+程序,通过在PCS传热管壁面附近第一层网格内设置冷凝通量的方法将PCS冷凝量及冷凝对应能量从系统中移除。研究结果表明,采用经过验证的PCS程序和耦合计算方法对PCS空间进行计算分析,可以有效控制空间内的温度和压力,PCS周围形成明显的温度和浓度梯度。本研究建立的PCS程序与STAR-CCM+程序耦合计算方法能够用于后续HPR1000及华龙后续机型的PCS研究。In order to better analyze the flow field and concentration field of fluid in the vicinity of the Hua-long pressurized reactor 1000(HPR1000)passive containment heat removal system(PCS),a one-dimensional natural circulation transient calculation code dedicated to PCS,which was developed based on drift flow model,was coupled with STAR-CCM+.The PCS code read the parameters calculated by STAR-CCM+,including temperature,pressure and gas composition,and transferred the temperature of PCS heat transfer pipe to STAR-CCM+.By setting the condensation flux in the first grid near the wall of the PCS heat transfer tube,the condensation amount and the corresponding energy of the PCS are removed from the system.The results show that the temperature and pressure in the PCS space can be effectively controlled by using the verified PCS program and coupling calculation method.Evident temperature and concentration gradients are observed near the PCS.In conclusion,the PCS code and STAR-CCM+coupling method established in this study are applicable to the PCS system research of HPR1000 and the HPR1000 follow-up types of machine.

关 键 词：非能动安全壳热量导出系统 “华龙一号” STAR-CCM+ 耦合计算方法 热工水力 漂移流模型 自然循环 

分 类 号：TL364.4[核科学技术—核技术及应用]