瞬态裂变气体释放机理研究及其在燃料棒内压分析中的应用  

Mechanism of Fission Gas Release in Transient and its Application in RIP Analysis

作　　者：丁阳[1] 周勤[1] 陈瑜[1] 

机构地区：[1]上海核工程研究设计院,上海200233

出　　处：《核电工程与技术》2011年第3期1-6,共6页Nuclear Power Engineering and Technology

摘　　要：本文分析了裂变气体释放过程中的主要物理现象以及各类裂变气体释放模型采用的模拟方法，比较了它们之间的异同，提出了使用稳态程序模拟瞬态裂变气体释放、计算燃料棒内压的方法，论证并通过算例和文献数据对比验证了其保守性、可行性。The major process of fission gas release （FGR） and the methods of different release models are analyzed in this paper. With this analysis, FGR in transient and the models in steady-state program are compared. A method using steady-state program simulating FGR and calculating rod internal pressure （RIP） in transient is developed and the feasibility of this method is discussed. The method is validated by comparing the calculated case with some reference data.

关 键 词：裂变气体释放 瞬态 燃料棒内压 

分 类 号：TL421.152[核科学技术—核技术及应用]