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High Efficiency Optical Solar Reflectors for Spacecraft
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English
Abstract
A number of methods for making improvements to optical solar reflectors for passive thermal control of spacecraft have been discussed in previous papers (1, 2). These methods have been evaluated practically in terms of their likely increase in efficiency against the degree of complexity require to incorporate the improvement itself. Those which appear to be advantageous have then undergone full development, qualification and productionisation. The first of these, the low absorptance CMX OSR, with an ∝/ε ratio has been reduced to half its original value, has recently completed full qualification by the Royal Aerospace Establishment in the UK. The work forms part of a programme of continual upgrading of OSRs with regard to optical, thermo-optical, mechanical and electrical properties but this paper will concentrate on considering the most important property of an OSR; its thermal efficiency.
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Citation
Head, A., "High Efficiency Optical Solar Reflectors for Spacecraft," SAE Technical Paper 891495, 1989, https://doi.org/10.4271/891495.Also In
References
- Technique for Passive Thermal Control for Spacecraft Whalley A.M. et al Presented at 17th Intersociety Conference on Environmental Systems Seattle, Washington July 1987
- Improvements in Passive Thermal Control for Spacecraft Whalley A.M. Pilkington Space Technology; presented at 18th ICES San Francisco July 1988
- Proof Testing of Standard and High Strength Coverglasses McKenzie H.W. Head A.M. Presented at 20th IEEE Photovoltaics Specialists Conference Las Vegas September 1988
- Combined Radiation Effects on Optical Reflectance of Thermal Control Coatings Marco J Paillous A. (CERT/DERTS) Lavadon F. (ESA/Estec) presented at 4th International Symposium on Spacecraft Materials in Space Environment Toulouse September 1988
- Long Term tests on Thermal Control Coatings: Final Report on ESTEC contract no. 7155/87/ NL/IW Paillous A. et al CERT/DERTS April 1988
- Low Absorptance CMX Optical Solar Reflectors Head A.M. (Pilkington) Paillous A. (CERT/DERTS) presented at 4th International Symposium on Spacecraft Materials in Space Environment Toulouse September 1988
- In-Orbit Degradation of Thermo-Optical Properties on MARECS Geo-Satellite Konzok H.G. Soeffker A. Stumpel D. (ERNO) Derbyshire K. (ESA/Estec) presented at the 3rd European Symposium on Space Thermal Control and Life Support Systems Noordwijk October 1988