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  • THERMODYNAMICS AND COMBUSTION  (6)
  • Fluid Mechanics and Thermodynamics  (1)
  • 1
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    Far-infrared reflectance of spacecraft coatings (1966)
    In:  CASI
    Details
    Publication Date: 2019-05-29
    Description: Far infrared reflectance and transmittance as function of wavelength for spacecraft coatings
    Keywords: THERMODYNAMICS AND COMBUSTION
    Type: NASA-CR-71187 , JPL-TR-32-873
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 2
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    User's manual for the TRW gaspipe 2 program: A vapor-gas front analysis program for heat pipes containing non-condensible gas (1973)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: A digital computer program for design and analysis of heat pipes which contain non-condensible gases, either for temperature control or to aid in start-up from the frozen state, is presented. Some of the calculations which are possible with the program are: (1) wall temperature profile along a gas-loaded heat pipe, (2) amount of gas loading necessary to obtain desired evaporator temperature at a desired heat load, (3) heat load versus evaporator temperature for a fixed amount of gas in the pipe, and (4) heat and mass transfer along the pipe, including the vapor-gas front region.
    Keywords: THERMODYNAMICS AND COMBUSTION
    Type: NASA-CR-114672 , TRW-13111-6054-RO-00
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 3
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    Variable conductance heat pipe technology (1973)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: Research and development programs in variable conductance heat pipe technology were conducted. The treatment has been comprehensive, involving theoretical and/or experimental studies in hydrostatics, hydrodynamics, heat transfer into and out of the pipe, fluid selection, and materials compatibility, in addition to the principal subject of variable conductance control techniques. Efforts were not limited to analytical work and laboratory experimentation, but extended to the development, fabrication and test of spacecraft hardware, culminating in the successful flight of the Ames Heat Pipe Experiment on the OAO-C spacecraft.
    Keywords: THERMODYNAMICS AND COMBUSTION
    Type: NASA-CR-114686 , RR-4
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 4
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    Heat and mass transfer in the vicinity of the vapor-gas front in a gas loaded heat pipe (1971)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: Axially conducting gas controlled heat pipes leading to predictive capability for heat and mass transfer along heat pipe
    Keywords: THERMODYNAMICS AND COMBUSTION
    Type: NASA-CR-114300
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 5
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    Theory and design of variable conductance heat pipes: Steady state and transient performance (1972)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: Heat pipe technology pertinent to the design and application of self-controlled, variable conductance heat pipes for spacecraft thermal control is discussed. Investigations were conducted to: (1) provide additional confidence in existing design tools, (2) to generate new design tools, and (3) to develop superior variable conductance heat pipe designs. A computer program for designing and predicting the performance of the heat pipe systems was developed.
    Keywords: THERMODYNAMICS AND COMBUSTION
    Type: NASA-CR-114530 , REPT-3
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 6
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    Variable Conductance Heat Pipe Technology (1974)
    In:  CASI
    Details
    Publication Date: 2019-08-14
    Description: A research and development program in variable conductance heat pipe technology is reported. The project involved: (1) theoretical and/or experimental studies in hydrostatics, (2) hydrodynamics, (3) heat transfer into and out of the pipe, (4) fluid selection, and (5) materials compatibility. The development, fabrication, and test of the space hardware resulted in a successful flight of the heat pipe experiment on the OAO-3 satellite. A summary of the program is provided and a guide to the location of publications on the project is included.
    Keywords: Fluid Mechanics and Thermodynamics
    Type: NASA-CR-114750 , TRW-13111-6060-RU-00
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 7
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    Diffusion freezeout in gas-loaded heat pipes. (1972)
    In:  Other Sources
    Details
    Publication Date: 2019-07-13
    Description: Experimental diffusion freezeout rates in a gas loaded heat pipe are presented and compared with predictions of an analysis and computer program published earlier. The experimental approach was to pivot a heat pipe on knife edges and use an analytical mass balance to measure the rate of mass migration within the pipe. Diffusion freezeout rates in a water heat pipe were measured as a function of the condenser sink temperature and the condenser-to-sink thermal conductance. Measured rates varied between 19 and 270 mg/hr and yielded 64 to 99 percent agreement with predicted values. These results indicated that the analysis and computer program for predicting the behavior of gas loaded heat pipes are useful tools for designing such systems.
    Keywords: THERMODYNAMICS AND COMBUSTION
    Type: ASME PAPER 72-WA/HT-33 , Winter Annual Meeting of the American Society of Mechanical Engineers; Nov 26, 1972 - Nov 30, 1972; New York, NY
    Format: text
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