Analytical Models for Airborne-Cryogenic-Insulation Thermal Performance
The use of liquid hydrogen In the Saturn-V launch vehicle has accelerated applied research of lightweight insulation systems that will effectively protect cryogenic liquids in the earth’s atmosphere. Many of the insulations studied are applicable to future high-performance vehicles propelled by liquid hydrogen and methane. The second stage of the Saturn-V is the largest flight-weight hydrogen tank to have insulation applied to its external surfaces. In this location, the insulation must perform under both atmospheric and cryogenic loads. The atmospheric hazard is the ever-present problem of cryopumping air and its potential oxygen enrichment through fractional distillation. The cryogenic hazards are the possibility of hydrogen and oxygen leakage and the potential dangers of fire and explosion. These hazards have been evaluated, and their effects have been reported [1, 2].
KeywordsThermal Conductivity Effective Thermal Conductivity Thermal Performance Liquid Hydrogen Honeycomb CORE
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