Thermal Analysis of Co-Axial Multi-Layered BSCCO HTS Power Cable

Author

Miyagi, Daisuke ; Takata, Naoki ; Takahashi, Norio

Author_Institution

Okayama Univ., Okayama, Japan

Volume

21

Issue

3

fYear

2011

fDate

6/1/2011 12:00:00 AM

Firstpage

991

Lastpage

995

Abstract

Reduction of the cooling cost and the securing of thermal stability are important problems to put HTS power cables to practical use. It is in particular very important in an HTS cable design to estimate the temperature rise by the AC loss and the over current precisely. The detailed behavior of the ac loss and the temperature distribution in a co-axial multi-layered BSCCO HTS power cable are analyzed by the magneto-thermal coupled method considering the temperature dependence of the critical current density and the Cu electrical resistance. Moreover, the temperature rise by the ac loss and the ohmic loss in each layer under the over current is calculated and the cooling necessity from the inside of a Cu former is examined.

Keywords

coaxial cables; critical current density (superconductivity); electrical resistivity; high-temperature superconductors; losses; magnetocaloric effects; power cables; temperature distribution; thermal stability; BSCCO; ac loss; coaxial multi-layered HTS power cable; critical current density; electrical resistance; magneto-thermal coupled method; ohmic loss; overcurrent; temperature distribution; thermal analysis; thermal stability; Coaxial cables; Cooling; Copper; High temperature superconductors; Power cables; Superconducting cables; Thermal analysis; AC loss; co-axial multi-layered HTS cable; magneto-thermal coupled analysis; temperature rise;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/TASC.2010.2090636

Filename

5659978