A solar collector having the combined properties of high solar absorptance, low infrared emittance, and high thermal conductivity is needed for applications where solar energy is to be absorbed and transported for use in minisatellites. Such a solar collector may be used with a low temperature differential heat engine to provide power or with a thermal bus for thermal switching applications. One concept being considered for the solar collector is an Al2O3 cermet coating applied to a thermal conductivity enhanced polished aluminum substrate. The cermet coating provides high solar absorptance and the polished aluminum provides low infrared emittance. Annealed pyrolytic graphite embedded in the aluminum substrate provides enhanced thermal conductivity. The as-measured thermal performance of an annealed pyrolytic graphite thermal conductivity enhanced polished aluminum solar collector, coated with a cermet coating, will be presented.
Thermal Performance of an Annealed Pyrolytic Graphite Solar Collector
2002-01-01
Miscellaneous
No indication
English
Continuous pyrolytic graphite composite filaments
AIAA | 1965
|Mechanical properties of pyrolytic graphite
AIAA | 1965
|Performance of 8 cm Pyrolytic-graphite Ion Thruster Optics
British Library Conference Proceedings | 2002
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