Item Details

Potassium Rankine Cycle Vapor Chamber (Heat Pipe) Radiator Study

by Ellsworth E. Gerrels and Robert E. Killen
Format
Book; Government Document; Online; EBook
Published
Washington, D.C. : National Aeronautics and Space Administration ; Springfield, Va. : For sale by the National Technical Information Service [distributor], 1971.
Language
English
Series
NASA Contractor Report
Summary
A structurally integrated vapor chamber fin (heat pipe) radiator is defined and evaluated as a potential candidate for rejecting waste heat from the potassium Rankine cycle powerplant. Several vapor chamber fin geometries, using stainless steel construction, are evaluated and an optimum is selected. A comparison is made with an operationally equivalent conduction fin radiator. Both radiators employ NaK-78 in the primary coolant loop. In addition, the Vapor Chamber Fin (VCF) radiator utilizes sodium in the vapor chambers. Preliminary designs are developed for the conduction fin and VCF concepts. Performance tests on a single vapor chamber were conducted to verify the VCF design. A comparison shows the conduction fin radiator easier to fabricate, but heavier in weight, particularly as meteoroid protection requirements become more stringent. While the analysis was performed assuming the potassium Rankine cycle powerplant, the results are equally applicable to any system radiating heat to space in the 900 to 1400 F temperature range.
Description
xii, 220 p. : ill. ; 27 cm.
Mode of access: Internet.
Notes
  • "NASA CR-1866."
  • "September 1971."
  • Cover title.
  • Includes bibliographical references (p. 207-208).
Series Statement
NASA contractor report ; NASA CR-1866
Other Forms
Also available online from the NASA Technical Reports Server (http://ntrs.nasa.gov/). Address as of 02/15/06:http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19720004957%5f1972004957.pdf.
Logo for Copyright Not EvaluatedCopyright Not Evaluated
Technical Details

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    a| Potassium rankine cycle vapor chamber (heat pipe) radiator study/ c| by Ellsworth E. Gerrels and Robert E. Killen.
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    a| Washington, D.C. : b| National Aeronautics and Space Administration ; a| Springfield, Va. : b| For sale by the National Technical Information Service [distributor], c| 1971.
    300
      
      
    a| xii, 220 p. : b| ill. ; c| 27 cm.
    490
      
    0
    a| NASA contractor report ; v| NASA CR-1866
    500
      
      
    a| "NASA CR-1866."
    500
      
      
    a| "September 1971."
    500
      
      
    a| Cover title.
    504
      
      
    a| Includes bibliographical references (p. 207-208).
    520
      
      
    a| A structurally integrated vapor chamber fin (heat pipe) radiator is defined and evaluated as a potential candidate for rejecting waste heat from the potassium Rankine cycle powerplant. Several vapor chamber fin geometries, using stainless steel construction, are evaluated and an optimum is selected. A comparison is made with an operationally equivalent conduction fin radiator. Both radiators employ NaK-78 in the primary coolant loop. In addition, the Vapor Chamber Fin (VCF) radiator utilizes sodium in the vapor chambers. Preliminary designs are developed for the conduction fin and VCF concepts. Performance tests on a single vapor chamber were conducted to verify the VCF design. A comparison shows the conduction fin radiator easier to fabricate, but heavier in weight, particularly as meteoroid protection requirements become more stringent. While the analysis was performed assuming the potassium Rankine cycle powerplant, the results are equally applicable to any system radiating heat to space in the 900 to 1400 F temperature range.
    530
      
      
    a| Also available online from the NASA Technical Reports Server (http://ntrs.nasa.gov/). Address as of 02/15/06:http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19720004957%5f1972004957.pdf.
    536
      
      
    a| Performed by General Electric Company, Philadelphia, Pa. for Lewis Research Center b| NAS 3-10615
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    a| Mode of access: Internet.
    650
      
    7
    a| Thermodynamic properties. 2| nasat
    650
      
    7
    a| Product development. 2| nasat
    650
      
    7
    a| Heat transfer. 2| nasat
    650
      
    7
    a| Equipment specifications. 2| nasat
    650
      
    7
    a| Rankine cycle. 2| nasat
    650
      
    7
    a| Power plants. 2| nasat
    650
      
    7
    a| Heat radiators. 2| nasat
    650
      
    7
    a| Heat pipes. 2| nasat
    650
      
    0
    a| New products.
    650
      
    0
    a| Heat x| Transmission.
    650
      
    0
    a| Rankine cycle.
    650
      
    0
    a| Power-plants.
    650
      
    0
    a| Radiators.
    650
      
    0
    a| Heat pipes.
    700
    1
      
    a| Killen, Robert E.
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    2
      
    a| Lewis Research Center.
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    2
      
    a| General Electric Company.
    974
      
      
    b| UIU c| UIUC d| 20141113 s| google u| uiug.30112106768747 y| 1971 r| pd q| bib

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