Evaluation of thermal control coatings exposed to ambient weather conditions at Haleakala High Altitude Observatory

L. Phelps

doi:10.1117/12.789156

10 July 2008 Evaluation of thermal control coatings exposed to ambient weather conditions at Haleakalä High Altitude Observatory

L. Phelps

Author Affiliations +

Proceedings Volume 7012, Ground-based and Airborne Telescopes II; 701230 (2008) https://doi.org/10.1117/12.789156
Event: SPIE Astronomical Telescopes + Instrumentation, 2008, Marseille, France

Abstract

The derived heat loads from thermal models are used to size the equipment that controls exterior enclosure seeing for the Advanced Technology Solar Telescope. These loads are highly dependent on the radiative properties assumed for the surface coatings of the enclosure. The properties of traditional white coatings and paints are known to degrade with time as they are exposed to the elements, but not by how much or how quickly. The solar reflectance and thermal emissivity of coatings considered for use on the enclosure, in a weathered condition, are not readily available from coatings manufacturers or in the scientific literature. The results from a one-year test of nine different coatings that were weathered at the summit of Haleakala on the island of Maui, Hawaii are reported and discussed.

Citation Download Citation

L. Phelps "Evaluation of thermal control coatings exposed to ambient weather conditions at Haleakalä High Altitude Observatory", Proc. SPIE 7012, Ground-based and Airborne Telescopes II, 701230 (10 July 2008); https://doi.org/10.1117/12.789156

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available