A new technique for the analysis of torque tube heat exchangers of superconducting generators

P.K. Sahoo, S. Sarangi

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

The torque tubes of a superconducting generator belong to a unique class of heat exchangers where a single fluid stream (boil off helium vapour) exchanges heat with a metallic wall conducting heat from the ambient to the cold (liquid helium) space. The rate of heat leak to the cold space is the chief indicator of the performance of the exchanger. This rate of heat inleak has been found to be a function of two dimensionless parameters: a generalized cooling parameter A* and a temperature range parameter Ψ. A generalized design chart is presented which expresses the dimensionless heat flow rate Qc in terms of the parameters A* and Ψ. This chart will be useful for the design of torque tubes and vapour-cooled support members in cryogenic systems.
Original languageEnglish
Pages (from-to)343-349
Number of pages7
JournalCryogenics
Volume36
Issue number5
DOIs
Publication statusPublished - 1996

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tube heat exchangers
Tubes (components)
torque
generators
Torque
heat
Helium
charts
Vapors
vapors
tubes
exchangers
heat exchangers
heat transmission
liquid helium
Cryogenics
cryogenics
Heat exchangers
flow velocity
helium

Cite this

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abstract = "The torque tubes of a superconducting generator belong to a unique class of heat exchangers where a single fluid stream (boil off helium vapour) exchanges heat with a metallic wall conducting heat from the ambient to the cold (liquid helium) space. The rate of heat leak to the cold space is the chief indicator of the performance of the exchanger. This rate of heat inleak has been found to be a function of two dimensionless parameters: a generalized cooling parameter A* and a temperature range parameter Ψ. A generalized design chart is presented which expresses the dimensionless heat flow rate Qc in terms of the parameters A* and Ψ. This chart will be useful for the design of torque tubes and vapour-cooled support members in cryogenic systems.",
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A new technique for the analysis of torque tube heat exchangers of superconducting generators. / Sahoo, P.K.; Sarangi, S.

In: Cryogenics, Vol. 36, No. 5, 1996, p. 343-349.

Research output: Contribution to journalArticle

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T1 - A new technique for the analysis of torque tube heat exchangers of superconducting generators

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