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Analytic and experimental evaluation of shadow shields and their support members for thermal control of space vehiclesThe thermal performance of shadow shields, and their support struts, for the thermal protection of cryogenic propellants in a simulated deep-space environment was investigated analytically and experimentally. Very low overall heat-transfer rates were obtained when highly reflective aluminized Mylar shadow shields were used. The thermal interactions between the shields and support struts were investigated with fair to good agreement between the analysis and experimental data. The exterior surface of both fiberglass and titanium struts was coated to reduce the heat input into the test tank. The vacuum level inside the test facility strongly influenced the heat-transfer rates.
Document ID
19740021212
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Technical Note (TN)
Authors
Boyle, R. J. (NASA Lewis Research Center Cleveland, OH, United States)
Stochl, R. J. (NASA Lewis Research Center Cleveland, OH, United States)
Date Acquired
September 3, 2013
Publication Date
June 1, 1974
Subject Category
Thermodynamics And Combustion
Report/Patent Number
E-7344
NASA-TN-D-7612
Accession Number
74N29325
Funding Number(s)
PROJECT: RTOP 502-24
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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