Stability of cable-in-conduit internally cooled superconductors subject to local disturbance

Author

Ryu, K. ; Tsukamoto, O. ; Michael, P.C. ; Amemiya, N.

Author_Institution

Yokohama Nat. Univ., Japan

Volume

30

Issue

4

fYear

1994

fDate

7/1/1994 12:00:00 AM

Firstpage

2312

Lastpage

2315

Abstract

A likely source of a quench in cable-in-conduit internally cooled superconductors (CCICS) is frictional heating due to strand motion in the cable. Most previous studies on CCICS stability evaluate the amount of energy needed to quench the conductor by assuming that the disturbance energy is uniformly distributed across the cross section. We believe that these studies are too optimistic, and have studied the stability of CCICS assuming that the disturbance energy is abruptly input into a small part of a single strand. To perform this analysis, the transient heat transfer characteristics of supercritical helium (SHE) have been measured. This paper presents the transient heat transfer characteristics of SHE and the results of our stability analysis

Keywords

heat transfer; liquid helium; stability; superconducting cables; cable-in-conduit internally cooled superconductors; disturbance energy; frictional heating; local disturbance; supercritical He; transient heat transfer characteristics; Conductors; Heat transfer; Heating; Helium; Performance analysis; Performance evaluation; Stability; Superconducting cables; Superconductivity; Transient analysis;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.305738

Filename

305738