THERMAL CONDUCTIVITY OF HELIUM-PERMEATED STYROFOAM,

Abstract

Styrofoam 22 is to be used as a jettisonable insulation for the Model 55 fuel tank. Early in the countdown the space between the insulation and tank is occupied by air, while later it is purged with helium. This report describes tests performed to determine whether the thermal conductivity of styrofoam is changed as the atmosphere to which it is exposed is changed from air (nitrogen) to helium, because of helium permeation. No change in conductivity was detected. (Author)

Document Details

Document Type
Technical Report
Publication Date
Aug 01, 1959
Accession Number
AD0832274

Entities

People

  • H. A. Gutzmer

Organizations

  • General Dynamics

Tags

DTIC Thesaurus Topics

  • Atmospheres
  • Conductivity
  • Fuel Tanks
  • Insulation
  • Nitrogen
  • Physical Properties
  • Thermal Conductivity

Readers

  • Aerospace Test and Evaluation
  • Thermal Physics or Thermal Science.

Technology Areas

  • Microelectronics
  • Space