Experimental Study on Heat-leakage of 100 A-Class PCL With Varying Cross Section

Current lead is the main source of heat leakage for superconducting cryogenic system in normal operation. The Peltier current lead (PCL), which is fabricated by inserting a thermoelectric material Bi 2 Te 3 into the room temperature end of the conventional copper lead, can effectively reduce the hea...

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Bibliographic Details
Published inIEEE transactions on applied superconductivity Vol. 29; no. 2; pp. 1 - 4
Main Authors Dai, Shaotao, Liu, Mingchuang, Ma, Tao, Zhang, Teng, Hu, Lei, Wang, Bangzhu, Wang, Yinshun
Format Journal Article
LanguageEnglish
Published New York IEEE 01.03.2019
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects
Bismuth tellurides
Cooling
Copper
Cross-sections
Cryogenic equipment
Heat
Heat leakage
Lead
Leakage
Peltier current lead
Temperature measurement
Thermoelectric materials
varying cross section
Water heating
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Summary:Current lead is the main source of heat leakage for superconducting cryogenic system in normal operation. The Peltier current lead (PCL), which is fabricated by inserting a thermoelectric material Bi 2 Te 3 into the room temperature end of the conventional copper lead, can effectively reduce the heat leakage created by current leads. In this paper, the PCL with varying cross section is proposed. The heat leakage of PCL in water and natural cooling modes at its room temperature end were simulated and tested experimentally. The experimental results indicate that the two modes of PCL with varying cross section behave differently in allowable current range and the PCL with varying cross section can effectively reduce the heat leakage.
ISSN:1051-8223
1558-2515
DOI:10.1109/TASC.2018.2882001