Vacuum System Optimization for EAST Neutral Beam Injector

doi:10.3390/en15010264

	Vacuum System Optimization for EAST Neutral Beam Injector
	Wang, Guodong 3; Zhang, Si 3; Chen, Changqi 3; Tang, Ning 1,2; Lang, Jiaqi 1,2; Xie, Yuanlai 1
刊名	ENERGIES
	2022
卷号	15
关键词	NBI vacuum system Molflow software pressure-gradient distribution heat-load distribution
DOI	10.3390/en15010264
通讯作者	Xie, Yuanlai(laurrence@ipp.ac.cn)
英文摘要	The neutral beam injector (NBI) generates a high-energy ion beam and neutralizes it, and then relies on drift transmission to inject the formed neutral beam into the fusion plasma to increase the plasma temperature and drive the plasma current. In order to better cooperate with the Experimental Advanced Superconductive Tokamak (EAST), part of the Chinese major national scientific and technological infrastructure, in carrying out long-pulse high-parameter physics experiments of 400 s and above, this paper considers the optimization of the current design and operation of the NBI beam line with a pulse width of 100 s. Based on an upgraded and optimized NBI vacuum chamber and the structure of the beam-line components, the gas-source characteristics under the layout design of the NBI system are analyzed and an NBI vacuum system that meets relevant needs is designed. Using Molflow software to simulate the transport process of gas molecules in the vacuum chamber, the pressure gradient in the vacuum chamber and the heat-load distribution of the low-temperature condensation surface are obtained. The results show that when the NBI system is dynamically balanced, the pressure of each vacuum chamber section is lower than the set value, thus meeting the performance requirements for the NBI vacuum system and providing a basis for subsequent implementation of the NBI vacuum system upgrade using engineering.
资助项目	EAST Performance Improvement grant[E05AH105l1] ; Hefei institutes of Physical Science Chinese Academy of Sciences
WOS关键词	COMPONENTS
WOS研究方向	Energy & Fuels
语种	英语
出版者	MDPI
WOS记录号	WOS:000759164700001
资助机构	EAST Performance Improvement grant ; Hefei institutes of Physical Science Chinese Academy of Sciences
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/127491]
专题	中国科学院合肥物质科学研究院
通讯作者	Xie, Yuanlai
作者单位	1.Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Peoples R China 2.Univ Sci & Technol China, Grad Sch, Sci Isl Branch, Hefei 230052, Peoples R China 3.Hefei Univ Technol, Sch Mech Engn, Hefei 230009, Peoples R China
推荐引用方式 GB/T 7714	Wang, Guodong,Zhang, Si,Chen, Changqi,et al. Vacuum System Optimization for EAST Neutral Beam Injector[J]. ENERGIES,2022,15.
APA	Wang, Guodong,Zhang, Si,Chen, Changqi,Tang, Ning,Lang, Jiaqi,&Xie, Yuanlai.(2022).Vacuum System Optimization for EAST Neutral Beam Injector.ENERGIES,15.
MLA	Wang, Guodong,et al."Vacuum System Optimization for EAST Neutral Beam Injector".ENERGIES 15(2022).