Effect of Electrical and Thermal Properties of Porous-Stabilized REBCO Tape on Recovery Performance
Effect of Electrical and Thermal Properties of Porous-Stabilized REBCO Tape on Recovery Performance
复制标题
多孔稳定 REBCO 胶带的电性能和热性能对恢复性能的影响
DOI：
10.1109/tasc.2021.3058567
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发表时间：
2021
影响因子：
1.8
通讯作者：
Hashizume Hidetoshi
中科院分区：
文献类型：
--
作者：
Yuki Kohei;Ito Satoshi;Hashizume Hidetoshi
稀土氧化铋铜(REBCO)带材具有响应速度快、结构简单等优点，被广泛应用于阻性超导限流器。为了缩短恢复时间，应抑制REBCO带上的薄膜沸腾，因为它具有较差的换热性能。为了解决上述问题，本研究使用低导热系数材料作为多孔稳定的REBCO带材的热/电界面材料。实验结果表明，采用导热系数为0.6W/mK的绝缘环氧材料，可显著提高制冷和恢复性能。在沸腾行为可视化的基础上，绝缘环氧促进了液氮与REBCO带材之间的液固接触，使液氮中的液膜沸腾更容易被打破。
Rare-earth barium copper oxide (REBCO) tape is used for resistive type superconducting fault current limiters (RSFCLs) owing to its quick response and simple structure. To shorten the recovery time, film boiling on the REBCO tape should be suppressed as it exhibits poor heat transfer performance. To address the aforementioned issue, this study utilized low thermal conductivity materials as the thermal/electrical interface material for porous-stabilized REBCO tape. The experimental results showed that the cooling and recovery performances were dramatically improved by utilizing an insulating epoxy, which has a thermal conductivity of 0.6 W/mK. Based on the visualization of the boiling behavior, the liquid-solid contact between liquid nitrogen and the REBCO tape was promoted by the insulating epoxy, in which the film boiling was easily broken.