A tungsten guard limiter for EAST 4.6 GHz lower hybrid waveguide antennas

doi:10.1016/j.fusengdes.2018.02.093

CORC > 合肥物质科学研究院 > 中国科学院合肥物质科学研究院 > 中科院等离子体物理研究所

	A tungsten guard limiter for EAST 4.6 GHz lower hybrid waveguide antennas
	Zhang, Liangliang 1,2; Cao, Lei 1; Yao, Damao 1; Han, Le 1; Wang, Zhaoliang 1; Li, Lei 1; Liu, Yanwei 1,2; Liu, Changle 1
刊名	FUSION ENGINEERING AND DESIGN
	2018-11-01
卷号	136 页码:447-453
关键词	Tungsten block Guard limiter LHWA Mechanical design EAST
ISSN号	0920-3796
DOI	10.1016/j.fusengdes.2018.02.093
通讯作者	Li, Lei(lilei@ipp.ac.cn) ; Liu, Changle(liuchangle@ipp.ac.cn)
英文摘要	A new guard limiter (GL) with tungsten tiles is developed for the 4.6 GHz lower hybrid waveguide antennas (LHWA) on experimental advanced superconducting tokamak (EAST). The tungsten blocks assembly with copper chromium zirconium (CuCrZr) pipes employed for the LHWA lateral protections, which are accommodated to the LHWA profiles. The tungsten block with a wedge-shape in the toroidal cross section is designed to reduce the high temperature particle flux from LHWA side. The explosive welding technology is applied for fabricating the connecting water tanks between the main pipes and the cooling branches. The eddy current analysis under the vertical displacement event and the disruption of plasma indicates the maximum current is 1100A. The GL temperature field and structural stress are estimated using finite element method (FEM) based on ANSYS code. It is found that there is the peak temperature zone located on each center of the 12 sub waveguides zones. It indicates that the GL can be operated at peak power density with 12.92MW/m(2) coming from the 4.6 GHz LHWA. It is also confirmed that the frame supports are safety for the GL structure based on the mechanics analysis.
WOS关键词	IN-VESSEL COMPONENTS ; HEAT-FLUX ; ELECTRONS ; GENERATION ; DEPOSITION ; DIVERTOR ; SPOTS
WOS研究方向	Nuclear Science & Technology
语种	英语
出版者	ELSEVIER SCIENCE SA
WOS记录号	WOS:000452583700085
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/40863]
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	Li, Lei; Liu, Changle
作者单位	1.Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Anhui, Peoples R China 2.Univ Sci & Technol China, Hefei 230026, Anhui, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Liangliang,Cao, Lei,Yao, Damao,et al. A tungsten guard limiter for EAST 4.6 GHz lower hybrid waveguide antennas[J]. FUSION ENGINEERING AND DESIGN,2018,136:447-453.
APA	Zhang, Liangliang.,Cao, Lei.,Yao, Damao.,Han, Le.,Wang, Zhaoliang.,...&Liu, Changle.(2018).A tungsten guard limiter for EAST 4.6 GHz lower hybrid waveguide antennas.FUSION ENGINEERING AND DESIGN,136,447-453.
MLA	Zhang, Liangliang,et al."A tungsten guard limiter for EAST 4.6 GHz lower hybrid waveguide antennas".FUSION ENGINEERING AND DESIGN 136(2018):447-453.