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Study on cooling process of cryogenic system for superconducting magnets of BEPCⅡ
In the upgrade project of the Beijing Electron Positron Collider(BEPCⅡ),three superconducting magnets are employed to realize the goal of two orders of magnitude higher luminosity.A cryogenic system with a total capacity of 0.5 kW at 4.5 K was built at the Institute of High Energy Physics(IHEP)to support the operations of these superconducting devices.For preparing the commissioning of the system,the refrigeration process Was simulated and analyrzed numerically.The numerical model Was based on the latest engineering progress and focused on the normal operation mode.The pressure and temperature profiles of the cryogenic system are achieved with the simulation.The influence of the helium mass flow rates to cool superconducting magnets on the thermodynamic parameters of their normal operation is also studied and discussed in this paper.
作 者： ZONG Zhan-Guo LIU Li-Qiang XIONG Lian-You LI Shao-Peng XU Qing-Jin HE Kun ZHANG Liang GAO Jie 作者单位： ZONG Zhan-Guo(Technical Institute of Physics and Chemistry,Chinese Academy of Sciences,Beijing 100080,China;Institute of High Energy Physics,Chinese Academy of Sciences,Beijing 100049,China;Graduate University of Chinese Academy of Sciences,Beijing 100049,China)LIU Li-Qiang,XIONG Lian-You(Technical Institute of Physics and Chemistry,Chinese Academy of Sciences,Beijing 100080,China)
LI Shao-Peng,XU Qing-Jin,HE Kun,ZHANG Liang,GAO Jie(Institute of High Energy Physics,Chinese Academy of Sciences,Beijing 100049,China)
刊 名： 中国物理C（英文版） ISTIC 英文刊名： CHINESE PHYSICS C 年，卷(期)： 2008 32(9) 分类号： O4 关键词： BEPCⅡ superconducting magnets cryogenic system【Study on cooling process of cryogeni】相关文章：
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