Optimization and thermodynamic understanding of conduction-cooled Peltier current leads

X. C. Xuan*, Kim Choon NG, C. Yap, H. T. Chua

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

17 Scopus citations

Abstract

Conduction-cooled Peltier current leads (PCLs) are optimized in a superconducting magnetic system. Optimum geometric factors, viz. the ratio of length to cross-sectional area, of both the copper lead and thermoelectric element, are simultaneously found to minimize the heat leak per PCL. A rigorous thermodynamic temperature-entropy (T-s) diagram is constructed. The heat leak as well as the total input power of both PCLs and converntional all-copper leads can be easily identified from the rectangular areas on the simple 2-D T-s plane.

Original languageEnglish (US)
Pages (from-to)141-145
Number of pages5
JournalCryogenics
Volume42
Issue number2
DOIs
StatePublished - Feb 1 2002

Keywords

  • Current lead
  • Heat leak
  • Temperature-entropy diagram
  • Thermoelectric effect

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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