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HEAT FLUX FROM 277 TO 77K THROUGH A FEW LAYERS OF MULTILAYER INSULATION.

Author(s) : SHU Q. S., FAST R. W., HART H. L.

Type of article: Article

Summary

THE INSULATING ABILITY OF A MULTILAYER INSULATION (MLI) SYSTEM, CONSISTING OF A FEW LAYERS ON AN ALUMINIUM TAPED 77 K SURFACE, WAS EXPERIMENTALLY STUDIED. THIS INFORMATION CAN HELP TO MAKE DESIGN DECISIONS TRADING-OFF THE COST OF MATERIAL AND INSTALLATIONMANPOWER AGAINST LIQUID NITROGEN CONSUMPTION IN MANY CRYOGENIC APPLICATIONS. THE EFFECTIVE THERMAL CONDUCTIVITY ALSO INCREASES WITH THE NUMBER OF LAYERS SO ONLY A MARGINAL BENEFIT CAN BE GAINED IN EXCESS OF 30 LAYERS ; FOR LARGE LIQUID VESSELS 30-40 LAYERS ARE RECOMMENDED. THE HEAT FLUX AND TEMPERATURE DISTRIBUTION IN THE MLI WERE ALSO MEASURED AS FUNCTIONS OF VACUUM PRESSURE.

Details

  • Original title: HEAT FLUX FROM 277 TO 77K THROUGH A FEW LAYERS OF MULTILAYER INSULATION.
  • Record ID : 1987-1706
  • Languages: English
  • Source: Cryogenics - vol. 26 - n. 12
  • Publication date: 1986

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