启明星2号轻水堆燃料棒价值实验和模拟研究

姜韦; 顾龙; 朱庆福; 周琦; 陈亮; 刘星泉; 张璐; 李金阳; 于锐; 王大伟

doi:10.7538/yzk.2017.youxian.0793

启明星2号轻水堆燃料棒价值实验和模拟研究

姜韦^1,2,
顾龙^1,2,*,
朱庆福³,
周琦³,
陈亮²,
刘星泉²,
张璐²,
李金阳²,
于锐²,
王大伟²

1.
中国科学技术大学物理学院,安徽合肥230000
2.
中国科学院近代物理研究所,甘肃兰州730000
3.
中国原子能科学研究院,北京102413

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- 刊出日期: 2018-09-19

Experiment and Simulation Study for Fuel Rod Worth of Venus-Ⅱ Light Water Reactor

1.
School of Physical Sciences, University of Science and Technology of China, Hefei 230000, China
2.
Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China
3.
China Institute of Atomic Energy, Beijing 102413, China

摘要

摘要: 本文对启明星2号零功率装置中轻水堆的单根棒价值进行了实验和模拟研究。利用MCNP6程序和5种截面库计算出5组动态参数，将实验所测的倍周期代入倒时方程得到了5种动态参数对应的单根棒价值。采用斜率法计算出5种数据库对应的单根棒价值，并与实验结果进行了比较。结果表明：5组动态参数给出的周期法实验结果存在明显差异，不同数据库下斜率法给出的模拟结果基本一致；采用JENDL-4.0库时，实验值与模拟值吻合最好，相对偏差小于1%。本文推荐选用JENDL-4.0库计算的动态参数处理实验数据，周期法所得的单根棒价值为(0.237 6±0.015 6) mk。获得精确的单根棒价值，将有助于提高后续ADS相关实验的准确性和可靠性。
- 启明星2号 ,
- 燃料棒价值 ,
- 周期法 ,
- 斜率法 ,
- 截面库
Abstract: Experiment and simulation studies for single fuel rod worth were carried out at the light water reactor of Venus-Ⅱ zero-power facility. Five groups of kinetic parameters were calculated by MCNP6 code with five libraries. By plugging the measured double periods into the in-hour equation, five corresponding single fuel rod worths were obtained respectively. Five single fuel rod worths were calculated by slope method using five libraries and the simulation results were compared with the experiment results. The results show that the experiment results of period method exhibit obvious discrepancies due to the differences of kinetic parameters obtained by different libraries. But the simulation results given by the slope method with different libraries are almost consistent. By comparison, a good agreement between the experiment and simulation with JENDL-4.0 is achieved and the relative deviation is less than 1%. Therefore, it is recommended that the kinetic parameters calculated with the JENDL-4.0 should be adopted to process the experiment data and the corresponding single fuel rod worth of period method is (0.237 6±0.015 6) mk. The accurate single fuel rod worth will improve the reliability and accuracy of the follow-up experiments on ADS.
- Venus-Ⅱ ,
- fuel rod worth ,
- period method ,
- slope method ,
- cross section library

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参考文献(13)

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启明星2号轻水堆燃料棒价值实验和模拟研究

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出版历程

Experiment and Simulation Study for Fuel Rod Worth of Venus-Ⅱ Light Water Reactor

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