THERMAL PROPERTY OF INSULATION MATERIAL FOR HTS POWER CABLE

被引：5
|
作者：
Choi, Y. S. [1 ]
Kim, D. L. [1 ]
Shin, D. W. [1 ]
Hwang, S. D. [2 ]
机构：
[1] Korea Basic Sci Inst, Taejon 305333, South Korea
[2] Korea Elect Power Res Inst, Taejon 305380, South Korea
来源：
ADVANCES IN CRYOGENIC ENGINEERING, VOLS 57A AND 57B | 2012年 / 1434卷
关键词：
Heat transfer; thermal conductivity; insulation material; HTS power cable; CONDUCTIVITY MEASUREMENTS;
D O I：
10.1063/1.4707055
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
The thermal property of insulation material is essential in developing a high temperature superconductor (HTS) power cable operating at around liquid nitrogen temperature. The accurate estimate of the heat flux is difficult in the nonmetallic materials because nonmetallic materials have a high thermal resistance and low temperature gradient along the specimen. The objective of the present work is to develop a precise instrument for measuring the thermal conductivity of insulating materials over a temperature range of 30 K to approximately the room temperature by using a cryocooler. The thermal conductivity of Teflon is measured and the accuracy confirmation is carried out by comparing published data. In addition, the experimental results of apparent thermal conductivity of polypropylene laminated paper (PPLP) are presented and the temperature dependency is also discussed.
引用
收藏
页码：1305 / 1312
页数：8
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