Numerical study on water draining process pushed by nitrogen in EAST upper divertor

doi:10.1016/j.fusengdes.2021.112545

	Numerical study on water draining process pushed by nitrogen in EAST upper divertor
	Li, Weibao 1,2; Hu, Jiansheng 2; Fu, Peng 2; Yang, Lei 2; Guo, Bin 2; Zhu, Lili 2; Xu, Tiejun 2; Cao, Lei 2
刊名	FUSION ENGINEERING AND DESIGN
	2021-09-01
卷号	170
关键词	EAST Tokamak Drainage Gas-liquid Divertor FLUENT analysis
ISSN号	0920-3796
DOI	10.1016/j.fusengdes.2021.112545
通讯作者	Yang, Lei(lyang@ipp.ac.cn)
英文摘要	In the Experimental Advanced Superconducting Tokamak (EAST), the water in the cooling channels of the upper divertor is difficult to be pushed out by the current drainage system resulting in the possible divertor damage. Therefore, studies on the draining process using the gas pushing for this divertor is essential to improve the current drainage system. In this paper, the hydraulic characteristics of the developing gas-liquid two-phase flow were investigated in detail by using the FLUENT code. The results showed that the pressure difference between the inlet and outlet of the cooling channel should be larger than 4 kPa to effectively blow out the residual water from the cooling channels by the nitrogen gas pressure. Also, it was found that the draining process can be divided into five stages in regards to the different hydraulic characteristics, such as the flow velocity, the draining water flow rate, and the pressure distribution. These results will provide a theoretical basis for future improvements in the EAST drainage systems.
资助项目	Hefei Institute of Material Science, Chinese Academy of Sciences[YZJJ2020QN15]
WOS研究方向	Nuclear Science & Technology
语种	英语
出版者	ELSEVIER SCIENCE SA
WOS记录号	WOS:000684310600009
资助机构	Hefei Institute of Material Science, Chinese Academy of Sciences
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/124284]
专题	中国科学院合肥物质科学研究院
通讯作者	Yang, Lei
作者单位	1.Univ Sci & Technol China, Hefei 230026, Peoples R China 2.Chinese Acad Sci, Inst Plasma Phys, HFIPS, Hefei 230031, Peoples R China
推荐引用方式 GB/T 7714	Li, Weibao,Hu, Jiansheng,Fu, Peng,et al. Numerical study on water draining process pushed by nitrogen in EAST upper divertor[J]. FUSION ENGINEERING AND DESIGN,2021,170.
APA	Li, Weibao.,Hu, Jiansheng.,Fu, Peng.,Yang, Lei.,Guo, Bin.,...&Cao, Lei.(2021).Numerical study on water draining process pushed by nitrogen in EAST upper divertor.FUSION ENGINEERING AND DESIGN,170.
MLA	Li, Weibao,et al."Numerical study on water draining process pushed by nitrogen in EAST upper divertor".FUSION ENGINEERING AND DESIGN 170(2021).