Present status and one upgrading method with a cold compressor of the EAST sub-cooling helium cryogenic system

doi:10.1088/2058-6272/aa58da

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

	Present status and one upgrading method with a cold compressor of the EAST sub-cooling helium cryogenic system
	Zhu, Zhigang 1,2; Zhang, Qiyong1 ; Song, Yuntao 1; Zhuang, Ming 1; Zhou, Zhiwei 1; Cheng, Anyi 1; Zhu, Ping 1
刊名	PLASMA SCIENCE & TECHNOLOGY
	2017-05-01
卷号	19 期号:5 页码:1-7
关键词	East Cryogenic System Helium Refrigerator Sub-cooling Helium Cold Compressor
DOI	10.1088/2058-6272/aa58da
文献子类	Article
英文摘要	Since 2006, the superconducting toroidal field (TF) coils of the Experimental Advanced Superconducting Tokomak (EAST) have been successfully cooled by supercritical helium at a temperature of 4.5 K and a pressure of 4 bara in eleven experiments. To obtain higher operating currents and magnetic fields it is necessary to lower the operating temperature of the TF coils. The EAST sub-cooling helium cryogenic system, with a warm oil ring pump (ORP), was tested twice in cool-down experiments, which made the TF coils operate at 3.8 K. However, the long term operational stability of the sub-cooling system cannot be guaranteed because of the ORP's poor mechanical and control performance. In this paper, the present status of the EAST subcooling helium cryogenic system is described, and then several cooling methods below 4.2 K and their merits are presented and analyzed. Finally, an upgrading method with a cold compressor for an EAST sub-cooling helium cryogenic system is proposed. The new process flow and thermodynamic calculation of the sub-cooling helium system, and the main parameters of the cold compressor, are also presented in detail. This work will provide a reference for the future upgrading of the sub-cooling helium system for higher operation parameters of the EAST device.
WOS关键词	PERFORMANCE
WOS研究方向	Physics
语种	英语
WOS记录号	WOS:000403261800016
资助机构	National Natural Science Foundation of China(11505237) ; National Natural Science Foundation of China(11505237) ; National Natural Science Foundation of China(11505237) ; National Natural Science Foundation of China(11505237) ; National Natural Science Foundation of China(11505237) ; National Natural Science Foundation of China(11505237) ; National Natural Science Foundation of China(11505237) ; National Natural Science Foundation of China(11505237) ; National Natural Science Foundation of China(11505237) ; National Natural Science Foundation of China(11505237) ; National Natural Science Foundation of China(11505237) ; National Natural Science Foundation of China(11505237) ; National Natural Science Foundation of China(11505237) ; National Natural Science Foundation of China(11505237) ; National Natural Science Foundation of China(11505237) ; National Natural Science Foundation of China(11505237)
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/31956]
专题	合肥物质科学研究院_中科院等离子体物理研究所
作者单位	1.Chinese Acad Sci, Inst Plasma Phys, Hefei 230031, Peoples R China 2.Univ Sci & Technol China, Hefei 230026, Peoples R China
推荐引用方式 GB/T 7714	Zhu, Zhigang,Zhang, Qiyong,Song, Yuntao,et al. Present status and one upgrading method with a cold compressor of the EAST sub-cooling helium cryogenic system[J]. PLASMA SCIENCE & TECHNOLOGY,2017,19(5):1-7.
APA	Zhu, Zhigang.,Zhang, Qiyong.,Song, Yuntao.,Zhuang, Ming.,Zhou, Zhiwei.,...&Zhu, Ping.(2017).Present status and one upgrading method with a cold compressor of the EAST sub-cooling helium cryogenic system.PLASMA SCIENCE & TECHNOLOGY,19(5),1-7.
MLA	Zhu, Zhigang,et al."Present status and one upgrading method with a cold compressor of the EAST sub-cooling helium cryogenic system".PLASMA SCIENCE & TECHNOLOGY 19.5(2017):1-7.