THERMAL CONDUCTIVITY OF HELIUM-PERMEATED STYROFOAM,

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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

Author(s):
Gutzmer, H. A.
Author Organization(s):
GENERAL DYNAMICS/ASTRONAUTICS SAN DIEGO CA
Pagination:
0014

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
GDA-7D2339
 Subject Terms
Communities of Interest:
No COI(s) Identified
Descriptor(s):
(*STYRENE PLASTICS, EXPANDED PLASTICS), (*EXPANDED PLASTICS, THERMAL CONDUCTIVITY), THERMAL INSULATION, FUEL TANKS, HELIUM, PERMEABILITY
Field(s)/Group(s):
Plastics, Thermodynamics
Keyword(s):
*STYROFOAM
Report Date:
1959 Aug 01