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

文献类型：期刊论文

作者Zhu, Zhigang1,2; Zhang, Qiyong1; Song, Yuntao1; Zhuang, Ming1; Zhou, Zhiwei1; Cheng, Anyi1; Zhu, Ping1
刊名PLASMA SCIENCE & TECHNOLOGY
出版日期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
DOI10.1088/2058-6272/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)
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.

入库方式： OAI收割

来源：合肥物质科学研究院

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