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SEPARATION OF HEAT TRANSFER COMPONENTS OF A SUPERINSULATED LIQUID NITROGEN DEWAR.

Author(s) : ARUNACHALAM S.

Type of article: Article

Summary

HEAT TRANSFER IN A SUPERINSULATED LIQUID NITROGEN DEWAR TAKES PLACE VIA CONDUCTION THROUGH THE NECK, RADIATION THROUGH THE INSULATION LAYERS, SOLID CONDUCTION THROUGH THE INSULATION AND VIA RESIDUAL GAS CONDUCTION. THESE COMPONENTS HAVE BEEN SEPARATED FROM THE MEASUREMENTS OF THE STEADY STATE HEAT TRANSFER RATES AND THE TEMPERATURE PROFILES OF THE INSULATION LAYERSIN A TEST DEWAR OF 7.5 LITRE CAPACITY. THE PROCEDURE OF MIKHALCHENKO ET AL IS ADOPTED IN SEPARATING THE HEAT TRANSFER COMPONENTS. IN GOOD AGREEMENT WITH EARLIER RESULTS RESIDUAL GAS CONDUCTION INDICATES THE PRESENCE OF INCREASED GAS PRESSUREIN THE MIDDLE OF THE INSULATION STRUCTURE.

Details

  • Original title: SEPARATION OF HEAT TRANSFER COMPONENTS OF A SUPERINSULATED LIQUID NITROGEN DEWAR.
  • Record ID : 1989-1246
  • Languages: English
  • Source: Indian J. Cryog. - vol. 12 - n. 2
  • Publication date: 1987
  • Document available for consultation in the library of the IIR headquarters only.

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