Performance tests of high temperature superconducting power cable cooling system

被引：12

作者：

Koh, D

Yeom, H

Hong, YJ

Lee, K

机构：

[1] Korea Inst Machinery & Mat, HVAC & Cryogen Engn Grp, Taejon, South Korea

[2] Hanyang Univ, Dept Mech Engn, Seoul 133791, South Korea

来源：

IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY | 2004年 / 14卷 / 02期

关键词：

cooling system; cryostat; HTS power cable; saturated liquid nitrogen; subcooler;

D O I：

10.1109/TASC.2004.831066

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A high temperature superconducting power cable requires forced flow cooling. Liquid nitrogen is circulated by a pump and cooled down by a subcooling system. Typical operating temperature range is expected to be between 65 K and 80 K. The circulating liquid nitrogen is subcooled by liquid nitrogen boiling on the shell side of a subcooler heat exchanger, and then it cools the HTS cable. The HTS power cable needs sufficient cooling to overcome its low temperature heat loading. This loading typically comes in two forms. One is heat leak from the surroundings and the other is internal heat generation, i.e., AC loss. This paper describes performance tests of the cooling system. Heat exchanging performance of the subcooler, pressure drop between supply and return lines, and heat transfer coefficient of a former are examined for the performance test.

引用

页码：1746 / 1749

页数：4