Heat-transfer characteristics of a water-to- cryogenic-hydrogen heat exchanger
Heat transfer characteristics of water/cryogenic hydrogen heat exchanger for nuclear rocket reactor
Adams, D. W.↗
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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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Flow and heat transfer characteristics of subtriple-point cryogens in heated tubes.
Cryogenic expansion to pressures below triple point and resulting formation of solid-vapor mixtures, discussing flow and heat transfer characteristics in heated tubes
Giarratano, P. J.↗
Stagnation-point heat transfer in arc-heated helium and argon.
He and Ar arc-heated flows into reservoir and expansion in converging-diverging supersonic nozzles, considering flow equilibrium effect on heat transfer and enthalpy
Pope, R. B.↗
The rotating heat pipe - A wickless, hollow shaft for transferring high heat fluxes.
Rotating wickless hollow shaft heat pipe utilizing centrifugal acceleration for return pumping of condensate and transferring high heat fluxes
Gray, V. H.↗
Effects of heat sterilization and vacuum exposure on some low-density heat-shield materials
Dry heat sterilization and vacuum effects on low-density heat shield materials
Sykes, G. F., Jr.↗
A compact 90 kilowatt electric heat source for heating inert gases to 1700 F
Design and fabrication of compact electric heat source for heating inert gases
Block, H. R.↗
Filling heat storage tubes for solar Brayton- cycle heat receiver with lithium fluoride
Filling heat storage tubes with lithium fluoride for solar Brayton cycle heat receiver
Gnadt, P. A.↗
Evaluation of a quartz - Fiberfrax heat shield at high radiative heating rates
Quartz-Fiberfrax heat shield tests for Thor booster at high radiative heating rates, noting optimum material performance dependence on loose stitching
Corea, V. A.↗
Heat transfer to solid-vapor mixtures of cryogens below their triple points flowing through heated tubes
Wall temperatures and heat transfer coefficients for solid-vapor mixtures of para hydrogen and nitrogen flowing in heated tube
Giarratano, P. J.↗
Analytical and experimental study of compressible laminar flow heat transfer and pressure drop of a gas in a uniformly heated tube
Numerical solutions of compressible laminar boundary layer heat transfer and pressure drop of gas in uniformly heated tube
Presler, A. F.↗
Subcooled- and net-boiling heat transfer to low-pressure water in electrically heated tubes
Experimental data on subcooled and net-quality boiling heat transfer to low pressure water in electrically heated tubes
Stone, J. R.↗
Heat sink capability of jet A fuel - Heat transfer and coking studies
Heat sink capabilities of Jet-A fuel - heat transfer and coking studies
Ackerman, G. H.↗
Heat transfer to pool-boiling mercury from horizontal cylindrical heaters at heat fluxes up to burnout
Horizontal cylindrical heaters heat transfer to pool boiling Hg at heat fluxes up to burnout
Colver, C. P.↗
Fabrication and testing of tungsten heat pipes for heat pipe cooled reactors
Li-filled vacuum-deposited W heat pipes for efficient heat extraction from nuclear reactors, discussing design, fabrication and testing
Bacigalupi, R. J.↗
Effects of roughness on heating and boundary-layer transition. Part 2: effects of discrete roughness on heating
A preliminary investigation on the effects of roughness on heating in delta wing orbiters was conducted on the windward surface of the vehicle. The purpose of the experiment was to determine the feasibility of using parametric relationships obtained from discrete roughness effects on heating in flat plates and cones, to complex shuttle configurations. An attempt was also made to characterize what parameters were needed to influence roughness. Experimental results show that effective roughness Reynolds numbers are less than or equal to those of flat plates at the same edge Mach number, but, the roughness correlations for plates and cones cannot be applied to the shuttle configuration.
Mateer, G. G.↗
Microfog lubricant application system for advanced turbine engine components, phase 2. Tasks 3, 4 and 5: Wettability and heat transfer of microfog jets impinging on a heated rotating disc, and evaluation of reclassifying nozzles and a vortex mist generator
The wettabilities and heat transfer rates of microfog jets (oil-mist nozzle flows) impinging on a heated rotating disc were determined under an inert atmosphere of nitrogen at temperatures ranging from 600 to 800 F. The results are discussed in relation to the various factors involved in the microfog lubricant application systems. Two novel reclassifying nozzles and a vortex mist generator were also studied.
Shim, J.↗
Gamma heating in reflector heat shield of gas core reactor
Heating rate measurements made in a mock-up of a BeO heat shield for a gas core nuclear rocket engine yields results nominally a factor of two greater than calculated by two different methods. The disparity is thought to be caused by errors in neutron capture cross sections and gamma spectra from the low cross-section elements, D, O, and Be.
Lofthouse, J. H.↗
Vaporization characteristics of carbon heat shields under radiative heating.
Study of the vaporization characteristics of samples of ATJ graphite, a material that has been considered for use on a Jovian probe. These samples were subjected to radiative heating loads of approximately 2 kW/sq cm in argon atmospheres of pressures from 0.00046 to 1 atm. Surface temperatures, mass loss rates, and spatially resolved emission spectral data were recorded. These data are analyzed to determine carbon vapor pressure as a function of temperature and are compared with current models for the vapor pressure of carbon. The effects of finite vaporization (i.e., nonequilibrium) rates are considered and compared with experiment. Estimates of the heat of vaporization from an energy balance are also presented.
Davy, W. C.↗