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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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Boiling mechanism, two-phase flow mechanism, heat transfer to cryogenic fluids, and body force effect on boiling and two-phase flow
Portable routing machine for cutting precise weld joints required by nonstandard pipe sections used in the field for transfer of cryogenic fluids. This tool is adaptable for various sizes of pipes and has a selection of router bits for different joint configurations.
Jacketed design of piping used to transfer cryogenic fluids, relieves severe stresses associated with the temperature gradients that occur during transfer cycles and ambient periods. The inner /transfer/ pipe is preloaded in such a way that stress relief takes place automatically as cycling occurs.
Soft metal plating of hard metal lip seal enables successful operation of seal in a cryogenic fluid line under high pressure. The seal is coated with a thin film of 24 carat gold on the lip area to provide antigall and seal properties.
Inverted tee, installed at a high point in a cryogenic transfer line, is equipped with an insulated bleed line that passes a fixed amount of cryogenic fluid at atmospheric pressure. A sensing device activates a vent valve in the tee stack whenever gaseous nitrogen is present.
C-shaped PTFE /polytetrafluorethylene/ seal ring provides a reliable seal in cryogenic fluids over a fluid pressure range of 0 to 2000 psig. It is interference-fitted internally with a metal expander ring and a metal compressor ring.
Material designs for electronic applications - motor brushes, dielectrics for wire coatings, electrical properties of cryogenic fluids, and potting compounds
Assessing cryogenic fluid requirements and storage methods for manned earth orbital and Mars flyby missions, and parametric data on thermal protection schemes
Preparation of filament wound glass microtape for forming thin walled tubes for containing cryogenic fluids
Cryogenic fluid storage on moon surface, considering Lambert reflection law, thermal insulation performance, incident heat flux and boil-off rates
Alarm system for cryogenic fluid storage tanks
Performance of cryogenic liquid shroud insulation for cryogenic fluid storage system
Measuring density of single and two-phase cryogenic fluids in rocket fuel tanks
High pressure liquid flow sight assembly for wide temperature range applications including cryogenic fluids
Film boiling on vertical surfaces in turbulent regime using cryogenic fluids
Design of thermal control system for cryogenic fluid storage tanks
Superconducting alternator design with cryogenic fluid for cooling windings below critical temperature