• NUCLEAR TECHNIQUES
  • Vol. 46, Issue 10, 100601 (2023)
Jie XIE1、2, Weibin XI1、*, Jinxing ZHENG1, Ziming CHEN1、2, and Shuangsong DU1
Author Affiliations
  • 1Institute of Plasma Physics, Hefei Institute of Material Science, Chinese Academy of Sciences, Hefei 230031, China
  • 2University of Science and Technology of China, Hefei 230026, China
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    DOI: 10.11889/j.0253-3219.2023.hjs.46.100601 Cite this Article
    Jie XIE, Weibin XI, Jinxing ZHENG, Ziming CHEN, Shuangsong DU. Thermal stability analysis of EAST toroidal field feeder under new threshold[J]. NUCLEAR TECHNIQUES, 2023, 46(10): 100601 Copy Citation Text show less
    Schematic of EAST device
    Fig. 1. Schematic of EAST device
    Schematic of the CICC conductor (new CICC on the left, and original CICC on the right)
    Fig. 2. Schematic of the CICC conductor (new CICC on the left, and original CICC on the right)
    Magnetic field distribution around EAST (zero point is EAST)
    Fig. 3. Magnetic field distribution around EAST (zero point is EAST)
    Temperature margin and current shunt temperature of conductor under different background magnetic fields and operating currents (a) Temperature margin, (b) Current shunt temperature
    Fig. 4. Temperature margin and current shunt temperature of conductor under different background magnetic fields and operating currents (a) Temperature margin, (b) Current shunt temperature
    Stability energy margin of feeder conductor under different operating currents (disturbance length 1 m, and disturbance time 0.01 s)
    Fig. 5. Stability energy margin of feeder conductor under different operating currents (disturbance length 1 m, and disturbance time 0.01 s)
    Stability energy margin of feeder conductor under different disturbance times and disturbance lengths (for 14.5 kA operating current) (a) Variation of stability energy margin with disturbance time, (b) Variation of stability margin with disturbance length
    Fig. 6. Stability energy margin of feeder conductor under different disturbance times and disturbance lengths (for 14.5 kA operating current) (a) Variation of stability energy margin with disturbance time, (b) Variation of stability margin with disturbance length

    时间

    Time

    进口温度

    Inlet

    temperature

    / K

    进口压力

    Inlet

    pressure

    / Pa

    进口流量

    Inlet

    flowrate

    / g·s-1

    出口温度

    Outlet

    temperature

    / K

    2015/06/045.093.71×1054.365.93
    2016/01/264.983.78×1054.725.86
    2017/07/075.113.83×1054.715.99
    2018/06/045.053.76×1054.815.84
    2019/04/065.133.67×1054.625.84
    2020/05/125.223.84×1054.685.97
    2021/05/105.173.84×1054.786.04
    2022/05/075.233.75×1054.746.06
    Table 1. TF feeder low-temperature operation data over the years
    参数Parameter原有CICC Original CICC新CICC New CICC
    超导材料Superconducting materialsNbTiNbTi
    铜超比Copper-to-superconductor ratio1.382.3
    超导股线直径Diameter of superconducting strand / mm0.870.73
    铜股线直径Diameter of Cu strand / mm0.980
    铠甲直径Diameter of Jacket / mm2321
    电缆截面积Cross section of cable / mm2284.08208.00
    股线截面积The cross-sectional area of strands / mm2177.69125.56
    超导体截面积Superconductor cross-sectional area / mm229.7037.63
    空隙截面积Helium in cable space / mm2101.9378.25
    空隙率Void fraction35.8837.62
    Table 2. Structural parameters of CICC

    参数

    Parameter

    Tc0

    / K

    Bc20

    / T

    C0

    / AT·mm-2

    αβγ
    数值Value8.7913.72113 2000.980.981.96
    Table 3. Calibration parameters of feeder conductor
    Jie XIE, Weibin XI, Jinxing ZHENG, Ziming CHEN, Shuangsong DU. Thermal stability analysis of EAST toroidal field feeder under new threshold[J]. NUCLEAR TECHNIQUES, 2023, 46(10): 100601
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