Entropy generation in a high temperature superconducting current lead

D. P. Sekulic, Z. Uzelac, F. J. Edeskuty

Research output: Contribution to journalArticlepeer-review

4 Scopus citations


The minimization of entropy generation has been used as a convenient thermal design tool in predicting the optimal temperature distribution in a cryogenic current lead. A vapour-cooled lead with non-ideal cooling has been modelled by a set of non-linear differential equations with corresponding boundary conditions. Highly non-linear temperature dependent thermophysical properties, typical for a high temperature superconducting YBCO compound, have been incorporated in a current lead model. Numerically obtained current lead temperature profiles have been used to calculate entropy generation within the lead as a function of the relevant physical and operational parameters. It has been shown that with respect to thermodynamic irreversibility as an objective function, in both resistive and superconducting modes of operation, there is an optimal thermal design.

Original languageEnglish
Pages (from-to)1154-1161
Number of pages8
Issue number12
StatePublished - 1992

Bibliographical note

Funding Information:
This work has been supported by the US-Yugoslav Joint Fund for Scientific and Technological Cooperation in cooperation with the US Department of Energy, under Grant JF-DOE-818.


  • current leads
  • high T superconductors
  • optimal thermal design

ASJC Scopus subject areas

  • General Materials Science
  • General Physics and Astronomy


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