Heat propagation and stability in a small high Tc superconductor coil

被引：22

作者：

Kiss, T

Vysotsky, VS

Yuge, H

Saho, H

Ilyin, YA

Takeo, M

Watanabe, K

Irie, F

机构：

[1] Kyushu Univ, Dept Elect & Elect Syst Engn, Grad Sch ISEE, Higashi Ku, Fukuoka 8128581, Japan

[2] Tohoku Univ, Inst Mat Res, Sendai, Miyagi 98077, Japan

[3] Kyushu Elect Power, Fukuoka 815, Japan

来源：

PHYSICA C | 1998年 / 310卷 / 1-4期

关键词：

Bi-2212; tape; Bi-2223; superconducting coil; quench; heat propagation;

D O I：

10.1016/S0921-4534(98)00494-8

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Using a Bi-based small high T-c superconductor (HTSC) coil, we have studied its stability against a local disturbance and current-induced quench in the helium gas cooling condition. While the stability margin of HTSC coil against a local disturbance was very large, quench current was limited by a catastrophic temperature rise which originated from the nonlinear characteristic of the Joule heating. The crucial parameter for the quench becomes the nonlinear resistance in HTSC as a function of temperature and transport current. It has been shown that the dynamic characteristics of the quench can be described quantitatively by the simplified one-dimensional heat balance equation. (C) 1998 Elsevier Science B.V. All rights reserved.

引用

页码：372 / 376

页数：5