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Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
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Fiber glass honeycomb conical support with integral, tapered-laminate edge members is developed for a liquid hydrogen tank. Special processing prevents collapse of the core and adds rigidity.
Tests were conducted in two rectangular glass tanks using silicon carbide grit bonded to walls to determine effect of wall roughness for damping liquid oscillations. Tests included effects of roughness height, roughness location, roughness at various values, amplitude decay, Reynolds number, and boundary layer thickness.
Thermopiles measure ullage gas temperatures to within plus or minus 1.65 deg K between 20 and 300 deg K, and also serve as point liquid-level sensors. Thermopile technique measures smaller temperature differences by keeping the reference junctions inside the tank and near the temperature range of the measuring junction.
Laminate superinsulation system for cryogenic test tank for long term space storage of fluids
Design optimization and fabrication of conical support structure for cryogenic tank in long duration space flight
Low gravity fuel sloshing in arbitrary axisymmetric rigid tank
Thermal properties of cryogenic propellant tank support systems
Gaseous-helium requirements for discharge of liquid hydrogen from 5-ft diameter spherical tank
Growth of deep surface flaws in thin wall tanks of aluminum and titanium base metals
Polymeric fuel tank sealants incorporating fluorine atoms for hypersonic aircraft
Heat transfer study of insulated liquid methane wing tank boiloff for supersonic cruise aircraft
Resistance weld monitoring of Centaur tanks
Resistance weld monitoring of Centaur tanks evaluated using ultrasonic and thermal expansion methods
Siloxane and perfluoroalkylenic polymers for elastomeric fuel tank sealant materials
Wall roughness effect on damping of liquid oscillations in rectangular tanks
Vapor ingestion phenomenon in hemispherically bottomed tanks in normal gravity and in weightlessness
Computerized analysis of thermal conductivity of 20-inch and 105-inch cryogenic space storage tanks
Prediction of service life of polymeric sealers for fuel tanks from viscoelastic measurements