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An analytical and experimental investigation of rotating, non-capillary heat pipesAn approximate theoretical model is derived for laminar film condensation on the inside of a rotating, truncated cone, and is used to predict the heat transfer performance of rotating, non-capillary heat pipes for a wide variety of parametric conditions. Experimental results are presented for water, ethyl alcohol, and freon-113 in a stainless steel heat pipe rotating to speeds of 2800 rpm. Results show that these devices can be used effectively to transfer large quantities of heat in rotating systems. Predicted results agree to within + or - 20 percent of the experimental data. Dropwise condensation, instead of film condensation, improves heat pipe performance while the presence of non-condensible gases impairs performance.
Document ID
19730008199
Acquisition Source
Legacy CDMS
Document Type
Contractor Report (CR)
Authors
Marto, P. J.
(Naval Postgraduate School Monterey, CA, United States)
Date Acquired
September 2, 2013
Publication Date
November 30, 1972
Subject Category
Thermodynamics And Combustion
Report/Patent Number
NASA-CR-130373
NPS-59MX72111A
Report Number: NASA-CR-130373
Report Number: NPS-59MX72111A
Accession Number
73N16926
Funding Number(s)
CONTRACT_GRANT: NASA ORDER W-13007
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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