A kinetic rate theory modelling of fission gas release and fuel swelling for UN fuels

doi:10.1016/j.jnucmat.2021.153188

	A kinetic rate theory modelling of fission gas release and fuel swelling for UN fuels
	Qian, Zhengyu 5; Liu, Wenbo 5; Yu, Rui 1; Tao, Yujie 1; Yun, Di 2,5; Gu, Long 1,3,4
刊名	JOURNAL OF NUCLEAR MATERIALS
	2021-12-01
卷号	556 页码:14
关键词	UN fuels Fission gas release Fuel swelling Kinetic rate theory
ISSN号	0022-3115
DOI	10.1016/j.jnucmat.2021.153188
通讯作者	Yun, Di(diyun1979@xjtu.edu.cn) ; Gu, Long()
英文摘要	Fission gas behavior and fuel swelling have always been an important issue for nitride fuels. In this paper, a mechanistic fission gas behavior model of nitride fuels has been established using the kinetic rate theory, based on the fuel temperature distribution input provided by a finite element computational platform. The fission gas release and fuel swelling of the nitride fuels were simulated in details and the simulation results were compared with experimental data from open literature. Using the established model, previous diffusion coefficients of Xe gas in nitride fuels derived by earlier works were analyzed, and a new diffusion coefficient suitable for simulation of nitride fuels was proposed. A parameter sensitivity analysis was carried out for the two important parameters in the rate theory simulation of fission gas behavior, the nucleation factor and the resolution coefficient. Suitable values for both parameters for nitride fuels were determined, and their influence on fission gas behavior and fuel swelling were assessed. In addition, a bimodal distribution for bubble size was observed and the underlying physics driving factor was determined to be the gas bubble resolution. (c) 2021 Elsevier B.V. All rights reserved.
资助项目	State Key Research and Development Program of China[2020YFB1902100] ; National Natural Science Foundation of China[11675126] ; National Natural Science Foundation of China[11705255] ; Shanghai Economic and Information Technology Commission[GYQJ2018-2-02]
WOS关键词	STEADY-STATE ; NUCLEAR-FUEL ; RE-SOLUTION ; BEHAVIOR ; BUBBLES ; U3SI2
WOS研究方向	Materials Science ; Nuclear Science & Technology
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000709373900010
资助机构	State Key Research and Development Program of China ; National Natural Science Foundation of China ; Shanghai Economic and Information Technology Commission
内容类型	期刊论文
源URL	[http://119.78.100.186/handle/113462/136085]
专题	中国科学院近代物理研究所
通讯作者	Yun, Di; Gu, Long
作者单位	1.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China 2.Xi An Jiao Tong Univ, State Key Lab Multiphase Flow, Xian 710049, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Lanzhou Univ, Sch Nucl Sci & Technol, Lanzhou 730000, Peoples R China 5.Xi An Jiao Tong Univ, Sch Nucl Sci & Technol, Xian 710049, Peoples R China
推荐引用方式 GB/T 7714	Qian, Zhengyu,Liu, Wenbo,Yu, Rui,et al. A kinetic rate theory modelling of fission gas release and fuel swelling for UN fuels[J]. JOURNAL OF NUCLEAR MATERIALS,2021,556:14.
APA	Qian, Zhengyu,Liu, Wenbo,Yu, Rui,Tao, Yujie,Yun, Di,&Gu, Long.(2021).A kinetic rate theory modelling of fission gas release and fuel swelling for UN fuels.JOURNAL OF NUCLEAR MATERIALS,556,14.
MLA	Qian, Zhengyu,et al."A kinetic rate theory modelling of fission gas release and fuel swelling for UN fuels".JOURNAL OF NUCLEAR MATERIALS 556(2021):14.