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Advanced Thermal Control Flight Experiment.The advanced Thermal Control Flight Experiment on the Applications Technology Satellite (ATS-F) will evaluate, for the first time in a space environment, the performance of a feedback-controlled variable conductance heat pipe and a heat pipe thermal diode. In addition, the temperature control aspects of a phase-change material (PCM) will be demonstrated. The methanol/stainless steel feedback-controlled heat pipe uses helium control gas that is stored in a wicked reservoir. This reservoir is electrically heated through a solid state controller that senses the temperature of the heat source directly. The ammonia/stainless steel diode heat pipe uses excess liquid to block heat transfer in the reverse direction. The PCM is octadecane. Design tradeoffs, fabrication problems, and performance during qualification and flight acceptance tests are discussed.
Document ID
19730051570
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Kirkpatrick, J. P.
(NASA Ames Research Center Moffett Field, Calif., United States)
Brennan, P. J.
(Dyna-Therm Corp. Cockeysville, Md., United States)
Date Acquired
August 7, 2013
Publication Date
July 1, 1973
Subject Category
Thermodynamics And Combustion
Report/Patent Number
AIAA PAPER 73-757
Meeting Information
Meeting: Thermophysics Conference
Location: Palm Springs, CA
Start Date: July 16, 1973
End Date: July 18, 1973
Sponsors: American Institute of Aeronautics and Astronautics
Accession Number
73A36372
Distribution Limits
Public
Copyright
Other

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