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Flat-plate /vapor-chamber/ heat pipesThis paper discusses the design, fabrication and testing of heat pipes constructed in the form of flat-plate panels. The test panels were constructed of copper with methyl alcohol as the working fluid. Capillary grooves etched on the internal surfaces provided evaporation and condensation heat-transfer coefficients on the order of 1600 Btu/hr-sq ft-deg F. Two panels were launched on board a sounding rocket; the payload reached an altitude of 140 miles, and zero gravity was achieved for almost six minutes. The panel with working fluid inside demonstrated a heat input flux of 2.5 watts/sq cm, with only a 3 to 5 C temperature difference throughout the entire panel.
Document ID
19750048799
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Fleischman, G. L.
Marcus, B. D.
(TRW Systems Group Redondo Beach, Calif., United States)
Mcintosh, R.
Ollendorf, S.
(NASA Goddard Space Flight Center Thermal Systems Branch, Greenbelt, Md., United States)
Date Acquired
August 8, 2013
Publication Date
May 1, 1975
Subject Category
Fluid Mechanics And Heat Transfer
Report/Patent Number
AIAA PAPER 75-728
Meeting Information
Meeting: American Institute of Aeronautics and Astronautics, Thermophysics Conference
Location: Denver, CO
Start Date: May 27, 1975
End Date: May 29, 1975
Sponsors: American Institute of Aeronautics and Astronautics
Accession Number
75A32871
Funding Number(s)
CONTRACT_GRANT: NAS5-11476
Distribution Limits
Public
Copyright
Other

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