Analysis of minor actinides transmutation for a Molten Salt Fast Reactor

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	Analysis of minor actinides transmutation for a Molten Salt Fast Reactor
	Yu, CG; Li, XX; Cai, XZ; Zou, CY; Ma, YW; Han, JL; Chen, JG
刊名	ANNALS OF NUCLEAR ENERGY
	2015
卷号	85 页码:597—604
关键词	FUEL-CYCLE PHYSICS
ISSN号	0306-4549
通讯作者	Chen, JG (reprint author), Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China.
英文摘要	As one of the six candidate reactors chosen by the Generation IV International Forum (GIF), Molten Salt Fast Reactor (MSFR) has many outstanding advantages and features for advanced nuclear fuel utilization. Effective transmutation of minor actinides (MA) could be attained in this kind of fast reactor, which is of importance in the future closed nuclear fuel cycle scenario. In this work, we attempt to study the MA transmutation capability in a MSFR with power of 500 MWth by analyzing the neutronics characteristics for different MA loadings. The calculated results show that MA loading plays an important role in the reactivity evolution of the MSFR. A larger MA loading is favorable to improving the MA transmutation performance and simultaneously to reducing the fissile consumption. When MA = 18.17 mol%, the transmutation fraction can achieve to about 95% on iso-breeding. We also find that although the fuel temperature coefficient (FTC) decreases with the increasing MA loading, it is still negative enough to keep the safety of the MSFR during the whole operation time. The MA contribution to the effective delayed neutron fraction (EDNF) and the intensity of spontaneous fission neutron (ISFN) are also analyzed. Also MA loading can affect the EDNF during the operation and the ISFN of the MSFR is dominated by (CM)-C-244. Finally, we analyze the effect of the core power on MA transmutation capability. The result shows that for all the operating powers the depletion ratio of MA to HN increases with time and reaches a maximum value. And additional MA should be fed into the fuel salt before the MA depletion ratio reaches the peak value to improve its transmutation capability. The net mass of the transmuted MA during the 50 years operation for 500 MWth is 5620 kg which is very close to that of 1000 MWth. (C) 2015 Elsevier Ltd. All rights reserved.
收录类别	SCI
语种	英语
WOS记录号	WOS:000361413800065
公开日期	2016-03-08
内容类型	期刊论文
源URL	[http://ir.sinap.ac.cn/handle/331007/24862]
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
推荐引用方式 GB/T 7714	Yu, CG,Li, XX,Cai, XZ,et al. Analysis of minor actinides transmutation for a Molten Salt Fast Reactor[J]. ANNALS OF NUCLEAR ENERGY,2015,85:597—604.
APA	Yu, CG.,Li, XX.,Cai, XZ.,Zou, CY.,Ma, YW.,...&Chen, JG.(2015).Analysis of minor actinides transmutation for a Molten Salt Fast Reactor.ANNALS OF NUCLEAR ENERGY,85,597—604.
MLA	Yu, CG,et al."Analysis of minor actinides transmutation for a Molten Salt Fast Reactor".ANNALS OF NUCLEAR ENERGY 85(2015):597—604.