Effect of Electrical and Thermal Properties of Porous-Stabilized REBCO Tape on Recovery Performance

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Abstract

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.

Original languageEnglish
Article number9352488
JournalIEEE Transactions on Applied Superconductivity
Volume31
Issue number5
DOIs
Publication statusPublished - 2021 Aug

Keywords

  • 2G HTS tape
  • Fault current limiters
  • film boiling
  • porous medium
  • recovery time

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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