哈尔滨工程大学学报2023，Vol.55Issue(10)：1689-1695,7.DOI:10.11990/jheu.202201046
全厂断电工况下ACME台架PRHR HX模化失真分析
Scaling distortion analysis of passive residual heat removal heat exchanger in an ACME facility during a station blackout accident
摘要
Abstract
During the safety review of advanced passive nuclear power plants,China's nuclear safety regulatory agencies typically conduct station blackout(SBO)integral effect tests based on the advanced core-cooling mecha-nism experiment(ACME).In this study,we evaluated the reproducibility of the scaled passive residual heat remov-al heat exchanger(PRHR HX)on design performance of the prototype.Then,we investigated the flow and heat transfer characteristics of PRHR HX based on the ACME SBO test.We also conducted the scaling analysis of PRHR HX,which mainly focused on the natural circulation(NC)phenomena occurring between the PRHR HX and decaying core via the hierarchical two-tiered scaling(H2TS)method.Moreover,we examined the scaling distor-tions in simulating NC phenomena.The results revealed excellent heat transfer performance of the scaled-down PRHR HX,which was designed according to the heat sink number similarity criterion.Therefore,the decay heat can be transported effectively and continuously during the transient,matching the decay power of the reactor core.The prototype's heat transfer characteristic,flow capacity,and friction force characteristic in PRHR NC were repre-sented with acceptable scaling distortions in PRHR HX.In the transient process,the characteristic time and scal-ing numbers representing the natural circulation process of PRHR all showed dynamic changes,which in turn,led to the scaling distortion of the scaled PRHR HX with significant dynamic characteristics.关键词
全厂断电/试验模拟/比例分析/自然循环/非能动堆芯冷却系统整体试验/比例失真/动态特性/非能动余热排出Key words
station blackout/experimental simulation/scaling analysis/natural circulation/advanced core-cooling mechanism experiment facility/scaling distortion/dynamic characteristics/passive residual heat removal分类
能源科技引用本文复制引用
刘宇生,许超,谭思超,靖剑平,庄少欣,王楠..全厂断电工况下ACME台架PRHR HX模化失真分析[J].哈尔滨工程大学学报,2023,55(10):1689-1695,7.基金项目
国家自然科学基金(51878056) （51878056）
