MIT Libraries logoDSpace@MIT

MIT
View Item 
  • DSpace@MIT Home
  • Plasma Science and Fusion Center (PSFC)
  • Journal Article Series (JA)
  • View Item
  • DSpace@MIT Home
  • Plasma Science and Fusion Center (PSFC)
  • Journal Article Series (JA)
  • View Item
JavaScript is disabled for your browser. Some features of this site may not work without it.

Hot-Spot Modeling of REBCO NI Pancake Coil: Analytical and Experimental Approaches

Author(s)
Lee, Wooseung; Park, Dongkeun; Choi, Yoonhyuck; Li, Yi; Bascuana, Juan; Iwasa,Yukikazu; ... Show more Show less
Thumbnail
Download20ja147_full.pdf (3.001Mb)
Metadata
Show full item record
Abstract
The No-Insulation (NI)winding provides intrinsic bypassing current paths that enable self-protection fromoverheating. The self-protection of the NI coil is one of the most promising protection techniques for the high field high-temperature superconductor (HTS) magnet applications. Since the additional paths are valid for an HTS magnet with a thinner matrix, the self-protection mechanism is applicable even for the higher current density magnet with reduced matrix thickness inside the HTS tape. However, reducing the matrix can cause damage to the magnet by producing excessive heat during the quench. This research introduces a new modeling method to investigate the hot-spot characteristics in the REBCO NI pancake coil. Themodel is also validated with a sample NI HTS coil experiment result. Radial direction Normal Zone Propagation (NZP) velocity of the sample coil is estimated based on the suggested model. The calculated radial direction NZP velocity is applied to calculate the center field drop of the NI HTS coil, and the result is well-matched with the experiment result.We also introduce one example of the model applications. The maximum current density that will not exceed a given reference temperature in the adiabatic cooling condition is estimated using the model.
Description
Submitted for publication in IEEE Transactions on Applied Superconductivity
Date issued
2020-11
URI
https://hdl.handle.net/1721.1/158539
Department
Massachusetts Institute of Technology. Plasma Science and Fusion Center
Journal
IEEE Transactions on Applied Superconductivity
Publisher
IEEE
Other identifiers
20ja147

Collections
  • Journal Article Series (JA)
  • MIT Open Access Articles

Browse

All of DSpaceCommunities & CollectionsBy Issue DateAuthorsTitlesSubjectsThis CollectionBy Issue DateAuthorsTitlesSubjects

My Account

Login

Statistics

OA StatisticsStatistics by CountryStatistics by Department
MIT Libraries
PrivacyPermissionsAccessibilityContact us
MIT
Content created by the MIT Libraries, CC BY-NC unless otherwise noted. Notify us about copyright concerns.