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Radiant heating tests of several liquid metal heat-pipe sandwich panelsIntegral heat-pipe sandwich panels, which synergistically combine the thermal efficiency of heat pipes and the structural efficiency of honeycomb sandwich construction, were conceived as a means of alleviating thermal stress problems in the Langley Scramjet Engine. Test panels which utilized two different wickable honeycomb cores, facesheets with screen mesh sintered to the internal surfaces, and a liquid metal working fluid (either sodium or potassium) were tested by radiant heating at various heat-load levels. The heat-pipe panels reduced maximum temperature differences by 31 percent with sodium working fluid and 45 percent with potassium working fluid. Results indicate that a heat-pipe sandwich panel is a potential, simple solution to the engine thermal stress problem. Other interesting applications of the concept include: cold plates for electronic component and circuit card cooling, radiators for large space platforms, low-distortion large area structures (e.g., space antennas) and laser mirrors.
Document ID
19830035431
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Camarda, C. J.
(NASA Langley Research Center Loads and Aeroelasticity Div., Hampton, VA, United States)
Basiulis, A.
(Hughes Aircraft Co., Dynamics Div., Torrance CA, United States)
Date Acquired
August 11, 2013
Publication Date
January 1, 1983
Subject Category
Fluid Mechanics And Heat Transfer
Report/Patent Number
AIAA PAPER 83-0319
Meeting Information
Meeting: American Institute of Aeronautics and Astronautics, Aerospace Sciences Meeting
Location: Reno, NV
Start Date: January 10, 1983
End Date: January 13, 1983
Accession Number
83A16649
Distribution Limits
Public
Copyright
Other

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