原子能科学技术Issue(10)：1700-1706,7.DOI:10.7538/yzk.2013.47.10.1700
快堆三维瞬态反应性反馈计算研究
Research of Three-dimensional Transient Reactivity Feedback in Fast Reactor
徐李 1马大园 2施工 3喻宏4
作者信息
- 1. 清华大学 工程物理系，北京 100084
- 2. 中国原子能科学研究院 中国实验快堆工程部，北京 102413
- 3. 中国原子能科学研究院 中国实验快堆工程部,北京,102413
- 4. 清华大学 工程物理系,北京,100084
- 折叠
摘要
Abstract
To solve the three-dimensional time-spatial kinetics feedback problems in fast reactor ,a mathematical model of the direct reactivity feedback was proposed .Based on the NAS code for fast reactor and the reactivity feedback mechanism ,a feedback model which combined the direct reactivity feedback and feedback reflected by the cross section variation was provided for the transient calculation .Furthermore ,the fast reactor group collapsing system was added to the code ,thus the real time group collapsing calculation could be realized .The isothermal elevated temperature test of CEFR was simulated by using the code .By comparing the calculation result with the test result of the tempera-ture reactivity coefficient ,the validity of the model and the code is verified .关键词
快堆/时空动力学/反应性反馈/NAS程序Key words
fast reactor/time-spatial kinetics/reactivity feedback/NAS code分类
能源科技引用本文复制引用
徐李,马大园,施工,喻宏..快堆三维瞬态反应性反馈计算研究[J].原子能科学技术,2013,(10):1700-1706,7.
