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  • 1
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    Manufacture of Fine Wire Thermocouple Probes (1964)
    American Institute of Physics
    Details
    Publication Date: 1964-01-01
    Print ISSN: 0034-6748
    Electronic ISSN: 1089-7623
    Topics: Electrical Engineering, Measurement and Control Technology , Physics
    Published by American Institute of Physics
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    PAPER CURRENT
  • 2
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    Erratum: Manufacture of Fine Wire Thermocouple Probes (1964)
    American Institute of Physics
    Details
    Publication Date: 1964-06-01
    Print ISSN: 0034-6748
    Electronic ISSN: 1089-7623
    Topics: Electrical Engineering, Measurement and Control Technology , Physics
    Published by American Institute of Physics
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    PAPER CURRENT
  • 3
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    Flat-plate heat pipe (1978)
    In:  Other Sources
    Details
    Publication Date: 2019-06-28
    Description: Heat pipe has its working fluid sealed between two flat panels rather than in conventional cylindrical housing. Metal wick is installed between planes to provide continuous fluid path in cooperation with capillary groves on inside surfaces of plates. Heat pipe is easily coupled to flat surfaces such as integrated circuit substrates, mirrors, and electronic cold plates and is more effective than conventional heat pipes when removing heat in these applications.
    Keywords: PHYSICAL SCIENCES
    Type: GSC-11998 , NASA Tech Briefs (ISSN 0145-319X); 3; 1; P. 43
    Format: text
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    NASA TECHNICAL REPORTS
  • 4
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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
  • 5
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    Theory and design of variable conductance heat pipes (1972)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: A comprehensive review and analysis of all aspects of heat pipe technology pertinent to the design of self-controlled, variable conductance devices for spacecraft thermal control is presented. Subjects considered include hydrostatics, hydrodynamics, heat transfer into and out of the pipe, fluid selection, materials compatibility and variable conductance control techniques. The report includes a selected bibliography of pertinent literature, analytical formulations of various models and theories describing variable conductance heat pipe behavior, and the results of numerous experiments on the steady state and transient performance of gas controlled variable conductance heat pipes. Also included is a discussion of VCHP design techniques.
    Keywords: THERMODYNAMICS AND COMBUSTION
    Type: NASA-CR-2018
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 6
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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
  • 7
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    Ames Heat Pipe Experiment (AHPE) experiment description document (1972)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: A gas-controlled variable-conductance heat pipe was qualified for flight aboard orbiting astronomical observatory (OAO3). Experiments were conducted to determine the performance and reliability of the pipe in the vacuum environment of space, and to demonstrate in a specific engineering application its effectiveness in providing temperature stability for spacecraft equipment which experiences varying electronic duty cycles and changing thermal boundary conditions. System design and hardware are discussed in detail.
    Keywords: FLUID MECHANICS AND HEAT TRANSFER
    Type: NASA-CR-114413 , TRW-13111-6033-RO-00
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 8
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    CTS TEP thermal anomalies: Heat pipe system performance (1977)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: A part of the investigation is summarized of the thermal anomalies of the transmitter experiment package (TEP) on the Communications Technology Satellite (CTS) which were observed on four occasions in 1977. Specifically, the possible failure modes of the variable conductance heat pipe system (VCHPS) used for principal thermal control of the high-power traveling wave tube in the TEP are considered. Further, the investigation examines how those malfunctions may have given rise to the TEP thermal anomalies. Using CTS flight data information, ground test results, analysis conclusions, and other relevant information, the investigation concentrated on artery depriming as the most likely VCHPS failure mode. Included in the study as possible depriming mechanisms were freezing of the working fluid, Marangoni flow, and gas evolution within the arteries. The report concludes that while depriming of the heat pipe arteries is consistent with the bulk of the observed data, the factors which cause the arteries to deprime have yet to be identified.
    Keywords: FLUID MECHANICS AND HEAT TRANSFER
    Type: NASA-CR-159413
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 9
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    Hydrophobic liquid/gas separator for heat pipes (1972)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: Perforated nonwetting plug of material such as polytetrafluoroethylene is mounted in gas reservoir feed tube, preferably at end which extends into heat pipe condenser section, to prevent liquid from entering gas reservoir of passively controlled heat pipe.
    Keywords: PHYSICAL SCIENCES
    Type: ARC-10656
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 10
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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
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