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  • Other Sources  (3)
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  • 1
    facet.materialart.
    Unknown
    Monogroove heat pipe design: Insulated liquid channel with bridging wick (1985)
    In:  CASI
    Details
    Publication Date: 2019-06-28
    Description: A screen mesh artery supported concentrically within the evaporator section of a heat pipe liquid channel retains liquid in the channel. Continued and uniform liquid feed to the heat pipe evaporation section (20) during periods of excessive heat transfer is assured. The overall design provides high evaporation and condensation film coefficients for the working fluid by means of the circumferential grooves in the walls of the vapor channel, while not interfering with the overall heat transport capability of the axial groove. The design has particular utility in zero-g environments.
    Keywords: FLUID MECHANICS AND HEAT TRANSFER
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 2
    facet.materialart.
    Unknown
    High-Performance Heat Pipe With Screen Mesh (1986)
    In:  Other Sources
    Details
    Publication Date: 2019-07-12
    Description: Liquid distributed more evenly in evaporator section. Improved heat pipe contains an artery and wick rolled from stainless-steel screen of 180 mesh (openings about 80 micrometers). Screen material helps to prevent dryout in evaporator section by conducting liquid through hotspots and to vaporchannel wall. Insert reduces incidence of dryout at hotspots or during intervals of general thermal overload.
    Keywords: MECHANICS
    Type: MSC-20497 , NASA Tech Briefs (ISSN 0145-319X); 10; 1; P. 101
    Format: text
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    NASA TECHNICAL REPORTS
  • 3
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    Heat-Pipe Array for Large-Area Cooling (1986)
    In:  Other Sources
    Details
    Publication Date: 2019-07-12
    Description: High rates of heat transfer anticipated. Prototype evaporative cold plate gathers waste heat from equipment mounted on it. Plate made by welding together flanges of several sections of heat pipe. Since plate separates liquid and vapor phases at inlet and outlet ports, eliminates complexities and uncertainties of two-phase flow in zero gravity. On earth, inlet valve enables plate to operate at relatively-large height differences with other plates in same system.
    Keywords: PHYSICAL SCIENCES
    Type: MSC-20946 , NASA Tech Briefs (ISSN 0145-319X); 10; 2; P. 64
    Format: text
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    NASA TECHNICAL REPORTS
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