Design chart of gas-cooled current leads made of copper of different RRR values

Keisuke Maehata, Kenji Ishibashi, Y. Wakuta

Research output: Contribution to journalArticle

23 Citations (Scopus)

Abstract

The generalized pressure drop of the cooling gas of current leads is obtained using the effective friction factor λp = 0.0715, which has been obtained in experiments on spiral-fin current leads. The design chart of current leads made of RRR = 92.5 copper is improved with respect to the generalized pressure drop of the cooling gas. For various copper materials with different values of RRR approximate expressions are considered to evaluate the electrical resistivity and the thermal conductivity as a function of temperature. The generalized characteristics of current leads made of copper of several RRR values are summarized in the design chart.

Original languageEnglish
Pages (from-to)935-940
Number of pages6
JournalCryogenics
Volume34
Issue number11
DOIs
Publication statusPublished - Jan 1 1994

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charts
Copper
Gases
gas cooling
copper
Pressure drop
pressure drop
gases
Cooling
friction factor
Thermal conductivity
fins
Friction
thermal conductivity
electrical resistivity
Experiments
Temperature
temperature

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Physics and Astronomy(all)

Cite this

Design chart of gas-cooled current leads made of copper of different RRR values. / Maehata, Keisuke; Ishibashi, Kenji; Wakuta, Y.

In: Cryogenics, Vol. 34, No. 11, 01.01.1994, p. 935-940.

Research output: Contribution to journalArticle

Maehata, Keisuke ; Ishibashi, Kenji ; Wakuta, Y. / Design chart of gas-cooled current leads made of copper of different RRR values. In: Cryogenics. 1994 ; Vol. 34, No. 11. pp. 935-940.
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