Magazine Article

Phase Change Material for Temperature Control of Imager or Sounder on GOES Type Satellites in GEO

TBMG-16595

06/01/2013

Abstract
Content

An imager or sounder on satellites, such as the Geostationary Operational Environmental Satellite (GOES), in geostationary orbit (GEO) has a scan mirror and motor in the scan cavity. The GEO orbit is 24 hours long. During part of the orbit, direct sunlight enters the scan aperture and adds heat to components in the scan cavity. Solar heating also increases the scan motor temperature. Overheating of the scan motor could reduce its reliability. For GOES-N to P, a radiator with a thermal louver rejects the solar heat absorbed to keep the scan cavity cool. A sunshield shields the radiator/louver from the Sun. This innovation uses phase change material (PCM) in the scan cavity to maintain the temperature stability of the scan mirror and motor.

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Citation
"Phase Change Material for Temperature Control of Imager or Sounder on GOES Type Satellites in GEO," Mobility Engineering, June 1, 2013.
Additional Details
Publisher
Published
Jun 1, 2013
Product Code
TBMG-16595
Content Type
Magazine Article
Language
English