Application of Oil-Gas Hybrid Bearing Turbine-Expander in EAST Helium Cryogenic System
Fusion energy with much more advantages could become a serious option for the future energy.The EAST (Experimental Advanced Superconducting Tokomak)device is aiming to study the physical and technical issues involved in stead-state tokamak nuclear fusion.Cryogenic system is one of the most important sub-systems in EAST device,and turbine-expanders are the key components of cryogenic system.In this paper,turbine-expanders with specific configuration in EAST cryogenic system were introduced,and the problem of instability of turbine-expanders in actual refrigerating process was pointed out.Three different refrigerating methods (Using T3,No-using T3 and using a two-phase turbine)were analyzed,and the results showed that the instability of turbine-expander,especially the coldest turbine (T3),will influence the normal operation,even the whole physical experiment of EAST device.The liquefaction capacity will be increased largely by using a two-phase turbine-expander instead of the JT-throttling.
Wang X.M Bai Hong.Yu Xu G.F Zhang Q.Y Zhuang M
Institute of Plasma Physics, Chinese Academy of Sciences Hefei, 230031, China Institute of Plasma Physics,Chinese Academy of Sciences Hefei, 230031, China
国际会议
18th International Conference on Nuclear Engineering(第18届国际核能工程大会 ICONE 18)
西安
英文
1-7
2010-05-17（万方平台首次上网日期，不代表论文的发表时间）