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3-D Unsteady Model for Be-Steam Reaction in Water-Cooled Ceramic Breeder Blanket

文献类型：期刊论文

作者Khodak, Andrei1; Cheng, Xiaoman4; Liu, Songlin4; Titus, Peter H.1; Neilson, George H.2,3
刊名IEEE TRANSACTIONS ON PLASMA SCIENCE
出版日期2018-06-01
卷号46期号:6页码:2332-2336
关键词Be-steam reaction computational fluid dynamics (CFD) water-cooled ceramic breeder (WCCB) blanket
ISSN号0093-3813
DOI10.1109/TPS.2018.2829105
通讯作者Khodak, Andrei(akhodak@pppl.gov)
英文摘要The design of the water-cooled ceramic breeder (WCCB) blanket includes beryllium multiplier layers. At elevated temperature, beryllium reacts with steam in an exothermic reaction producing beryllium oxide and hydrogen. Such situation may occur in WCCB in the case of the rupture of one of the cooling pipes in the blanket module. This process occurs locally in a complex 3-D geometry of the blanket containing several different granular levels and a network of cooling pipes and structural supports. The process is also inherently unsteady since reaction rate depends on concentration of steam and pure beryllium which changes in time. In order to perform the detailed analysis of the process, the model of the reacting flowthrough porous media was developed and introduced into 3-D computational fluid dynamics code. In this model, granular beds are introduced as porous solids simplifying the model geometry and reducing typical mesh size to manageable amount of tens of millions of elements. A reaction rate between solid beryllium and steam is obtained from experimental results, and depends on temperature and concentration of the reactants. The differential equation for beryllium oxide fraction is introduced, allowing obtaining distributions of beryllium oxide in space and time. Multicomponent flow consisting of a homogenous mixture of steam and hydrogen is considered flowing through the porous solid with variable properties. Sink and source terms for steam and hydrogen fractions are determined by local beryllium oxide mass fraction source according to the molar ratios of beryllium steam reaction. The conjugated heat transfer approach is applied to calculate heat transfer in support structures as well as coolant flow, simultaneously with the porous medium steam flow in a blanket's granular beds. The model is validated using experimental data on beryllium steam reaction for granular bed samples.
WOS关键词WCCB BLANKET ; SYSTEM ; CFETR
资助项目U.S. Department of Energy, Office of Science, Office of Fusion Energy Sciences ; Princeton University ; U.S. Department of Energy[DE-AC02-09CH11466]
WOS研究方向Physics
语种英语
WOS记录号WOS:000435149900050
出版者IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
资助机构U.S. Department of Energy, Office of Science, Office of Fusion Energy Sciences ; U.S. Department of Energy, Office of Science, Office of Fusion Energy Sciences ; U.S. Department of Energy, Office of Science, Office of Fusion Energy Sciences ; U.S. Department of Energy, Office of Science, Office of Fusion Energy Sciences ; U.S. Department of Energy, Office of Science, Office of Fusion Energy Sciences ; U.S. Department of Energy, Office of Science, Office of Fusion Energy Sciences ; U.S. Department of Energy, Office of Science, Office of Fusion Energy Sciences ; U.S. Department of Energy, Office of Science, Office of Fusion Energy Sciences ; U.S. Department of Energy, Office of Science, Office of Fusion Energy Sciences ; U.S. Department of Energy, Office of Science, Office of Fusion Energy Sciences ; U.S. Department of Energy, Office of Science, Office of Fusion Energy Sciences ; U.S. Department of Energy, Office of Science, Office of Fusion Energy Sciences ; U.S. Department of Energy, Office of Science, Office of Fusion Energy Sciences ; U.S. Department of Energy, Office of Science, Office of Fusion Energy Sciences ; U.S. Department of Energy, Office of Science, Office of Fusion Energy Sciences ; U.S. Department of Energy, Office of Science, Office of Fusion Energy Sciences ; U.S. Department of Energy, Office of Science, Office of Fusion Energy Sciences ; U.S. Department of Energy, Office of Science, Office of Fusion Energy Sciences ; U.S. Department of Energy, Office of Science, Office of Fusion Energy Sciences ; U.S. Department of Energy, Office of Science, Office of Fusion Energy Sciences ; U.S. Department of Energy, Office of Science, Office of Fusion Energy Sciences ; U.S. Department of Energy, Office of Science, Office of Fusion Energy Sciences ; U.S. Department of Energy, Office of Science, Office of Fusion Energy Sciences ; U.S. Department of Energy, Office of Science, Office of Fusion Energy Sciences ; U.S. Department of Energy, Office of Science, Office of Fusion Energy Sciences ; U.S. Department of Energy, Office of Science, Office of Fusion Energy Sciences ; 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源URL[http://ir.hfcas.ac.cn:8080/handle/334002/38196]  
专题合肥物质科学研究院_中科院等离子体物理研究所
通讯作者Khodak, Andrei
作者单位1.Princeton Plasma Phys Lab, Princeton, NJ 08540 USA
2.Princeton Plasma Phys Lab, Adv Projects, Princeton, NJ 08540 USA
3.Princeton Plasma Phys Lab, ITER Fabricat Dept, Princeton, NJ 08540 USA
4.Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Anhui, Peoples R China
推荐引用方式
GB/T 7714		 Khodak, Andrei,Cheng, Xiaoman,Liu, Songlin,et al. 3-D Unsteady Model for Be-Steam Reaction in Water-Cooled Ceramic Breeder Blanket[J]. IEEE TRANSACTIONS ON PLASMA SCIENCE,2018,46(6):2332-2336.
APA Khodak, Andrei,Cheng, Xiaoman,Liu, Songlin,Titus, Peter H.,&Neilson, George H..(2018).3-D Unsteady Model for Be-Steam Reaction in Water-Cooled Ceramic Breeder Blanket.IEEE TRANSACTIONS ON PLASMA SCIENCE,46(6),2332-2336.
MLA Khodak, Andrei,et al."3-D Unsteady Model for Be-Steam Reaction in Water-Cooled Ceramic Breeder Blanket".IEEE TRANSACTIONS ON PLASMA SCIENCE 46.6(2018):2332-2336.

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来源：合肥物质科学研究院

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