Application of Monte Carlo method to calculate the effective delayed neutron fraction in molten salt reactor

doi:10.1007/s41365-019-0557-7

CORC > 上海应用物理研究所 > 中国科学院上海应用物理研究所 > 中科院上海应用物理研究所2011-2017年

	Application of Monte Carlo method to calculate the effective delayed neutron fraction in molten salt reactor
	Zhu, GF; Yan, R; Peng, HH; Ji, RM; Yu, SH; Liu, YF; Tian, J; Xu, B
刊名	NUCLEAR SCIENCE AND TECHNIQUES
	2019
卷号	30 期号:2 页码:—
ISSN号	1001-8042
DOI	10.1007/s41365-019-0557-7
文献子类	期刊论文
英文摘要	Delayed neutron loss is an important parameter in the safety analysis of molten salt reactors. In this study, to obtain the effective delayed neutron fraction under flow condition, a delayed neutron precursor transport was implemented in the Monte Carlo code MCNP. The moltensalt reactor experiment (MSRE) model was used to analyze the reliability of this method. The obtained flow losses of reactivity for 235 U and 233 U fuels in the MSRE are 223 pcm and 100.8 pcm, respectively, which are in good agreement with the experimental values (212 pcm and 100.5 pcm, respectively). Then, six groups of effective delayed neutron fractions in a small molten salt reactor were calculated under different mass flow rates. The flow loss of reactivity at full power operation is approximately 105.6 pcm, which is significantly lower than that of the MSRE due to the longer residence time inside the active core. The sensitivity of the reactivity loss to other factors, such as the residence time inside or outside the core and flow distribution, was evaluated as well. As a conclusion, the sensitivity of the reactivity loss to the residence time inside the core is greater than to other parameters.
语种	英语
内容类型	期刊论文
源URL	[http://ir.sinap.ac.cn/handle/331007/31476]
专题	上海应用物理研究所_中科院上海应用物理研究所2011-2017年
作者单位	Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China
推荐引用方式 GB/T 7714	Zhu, GF,Yan, R,Peng, HH,et al. Application of Monte Carlo method to calculate the effective delayed neutron fraction in molten salt reactor[J]. NUCLEAR SCIENCE AND TECHNIQUES,2019,30(2):—.
APA	Zhu, GF.,Yan, R.,Peng, HH.,Ji, RM.,Yu, SH.,...&Xu, B.(2019).Application of Monte Carlo method to calculate the effective delayed neutron fraction in molten salt reactor.NUCLEAR SCIENCE AND TECHNIQUES,30(2),—.
MLA	Zhu, GF,et al."Application of Monte Carlo method to calculate the effective delayed neutron fraction in molten salt reactor".NUCLEAR SCIENCE AND TECHNIQUES 30.2(2019):—.