HTR-10 热气导管断裂事故下的扩散自然对流瞬态过程分析  

Analysis of the Transient Process of Diffusion_NaturalConvection in Case of Hot Gas DuctRupture Accident of HTR10

作　　者：刘宝亭[1] 

机构地区：[1]清华大学核能技术设计研究院

出　　处：《核动力工程》1998年第3期238-242,共5页Nuclear Power Engineering

摘　　要：热气导管断裂事故是１０ＭＷ高温气冷试验堆（ＨＴＲ１０）的假想事故。为了分析该大破口事故初期的扩散自然对流的瞬态过程，本文提出了一个一维扩散自然对流模型，并用日本原子能研究院（ＪＡＥＲＩ）的倒Ｕ型管内的扩散自然对流实验验证了该模型。利用该模型分析了ＨＴＲ１０热气导管断裂事故下的扩散自然对流过程。结果显示：经过４００００ｓ的时间延迟形成稳定的自然对流，其质量流量为０．０４ｋｇ／ｓ。ot gas duct rupture accident is the hypothetical accident of 10MW High Temperature gas cooled test Reactor(HTR10),in order to analyze the transient process of diffusionnauralconvection of this accident,a one dimensional diffusionnaturalconvection model is proposed in this paper.This model is successfully testified by the experiment of diffusionnaturalconvection in the reverse U pipe performed by Japan Atomic Energy Research Institute(JAERI).Applying this model analyzed the process of diffusionnaturalconvection in case of hot gas duct rupture accident of HTR10,it is shown that a steady natural convection is setup after 40000 second delay,its mass flow rate is 0.04kg/s.　　

关 键 词：高温气冷试验堆 热气导管 断裂事故 瞬态过程 

分 类 号：TL364.4[核科学技术—核技术及应用] TL424