原子能科学技术2018，Vol.52Issue(5)：904-911,8.DOI:10.7538/yzk.2018.52.05.0904
混合与分层熔池形态下熔融物与混凝土相互作用预测和对比分析
Prediction and Comparison of Molten Core-Concrete Interaction in Mixed and Stratified Pool Configuration
摘要
Abstract
Prediction and comparison were conducted on the molten core-concrete interaction in the mixed and stratified pool configurations in a mega kilowatt pressure water reactor plant by using the code MEDICIS modeling methods in the aspects of poolconcrete interface and heat transfer.The results show that the mean pool temperature is close to the molten core solidification temperature,the cavity ablation behaves isotropically,and the final temperature and pressure do not reach the designed values in the mixed pool configuration,while the mean pool temperature is far above the corium solidification temperature,the cavity ablation behaves anisotropically and the lateral ablation prevails,and the final temperature and pressure are very close to the designed values in the stratified pool configuration.Also in the both pool configurations,the concrete basemat is ablated quite slowly,the time of basemat melt-through in the containment may exceed a week for a 4 m thick basemat,the large masses of steam and incondensable CO,CO2 and H2 are produced in the containment,and there exists a risk of gas combustion and detonation which may be a threat to containment integrality.关键词
熔融物与混凝土相互作用/混合熔池/分层熔池Key words
molten core-concrete interaction/mixed pool/stratified pool分类
能源科技引用本文复制引用
马建,闫晓,昝元峰,卓文彬..混合与分层熔池形态下熔融物与混凝土相互作用预测和对比分析[J].原子能科学技术,2018,52(5):904-911,8.基金项目
大型先进压水堆国家科技重大专项资助项目(2011ZX06004-008) （2011ZX06004-008）
