Role of the cross section geometry in rectangular Nb3Sn CICC performances

Simonetta Turtù, Luigi Muzzi, Chiarasole Fiamozzi Zignani, Valentina Corato, Antonio Della Corte, Aldo Di Zenobio, Luigi Reccia

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

It is now a matter of fact that parameters such as cable twist pitch (TP) and void fraction (VF) have a strong impact on Cable-in-Conduit Conductor performances. A proper choice of their values in the direction of raising the former (TP) and lowering the latter (VF) has been proven to considerably enhance the transport properties, though increasing the AC losses, and to appreciably reduce the conductor degradation with electromagnetic and thermal loading cycles. It has been also demonstrated that a further route for CICCs performance improvement is represented by a suitable optimization of the conductor shape with respect to the electromagnetic force distribution. In this sense, CIC conductors with high aspect ratio rectangular geometry, if properly oriented, have shown a better response to high electromagnetic pressure, as proved by experimental evidences. This paper, where the test results of a large rectangular Nb3Sn CIC conductor are interpreted, is intended to clarify the role of the conductor cross-section geometry on the electromagnetic load sharing among the strands and/or on the cable stiffness, and thus on the strain distribution over the cable wires. © 2010 IEEE.
Original languageEnglish
Article number5643966
Pages (from-to)2032 - 2035
Number of pages4
JournalIEEE Transactions on Applied Superconductivity
Volume21
Issue number3 PART 2
DOIs
Publication statusPublished - Jun 2011
Externally publishedYes

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All Science Journal Classification (ASJC) codes

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

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