Plate coil thermal test bench for the Daniel K. Inouye Solar Telescope (DKIST) carousel cooling system

LeEllen Phelps; Gaizka Murga; Guillermo Montijo Jr.; David Hauth

doi:10.1117/12.2057029

4 August 2014 Plate coil thermal test bench for the Daniel K. Inouye Solar Telescope (DKIST) carousel cooling system

LeEllen Phelps, Gaizka Murga, Guillermo Montijo Jr., David Hauth

Proceedings Volume 9150, Modeling, Systems Engineering, and Project Management for Astronomy VI; 91501Q (2014) https://doi.org/10.1117/12.2057029
Event: SPIE Astronomical Telescopes + Instrumentation, 2014, Montréal, Quebec, Canada

Abstract

Analyses have shown that even a white-painted enclosure requires active exterior skin-cooling systems to mitigate dome seeing which is driven by thermal nonuniformities that change the refractive index of the air. For the Daniel K. Inouye Solar Telescope (DKIST) Enclosure, this active surface temperature control will take the form of a system of water cooled plate coils integrated into the enclosure cladding system. The main objective of this system is to maintain the surface temperature of the enclosure as close as possible to, but always below, local ambient temperature in order to mitigate this effect. The results of analyses using a multi-layer cladding temperature model were applied to predict the behavior of the plate coil cladding system and ultimately, with safety margins incorporated into the resulting design thermal loads, the detailed designs. Construction drawings and specifications have been produced. Based on these designs and prior to procurement of the system components, a test system was constructed in order to measure actual system behavior. The data collected during seasonal test runs at the DKIST construction site on Haleakalā are used to validate and/or refine the design models and construction documents as appropriate. The test fixture was also used to compare competing hardware, software, components, control strategies, and configurations. This paper outlines the design, construction, test protocols, and results obtained of the plate coil thermal test bench for the DKIST carousel cooling system.

Citation Download Citation

LeEllen Phelps, Gaizka Murga, Guillermo Montijo Jr., and David Hauth "Plate coil thermal test bench for the Daniel K. Inouye Solar Telescope (DKIST) carousel cooling system", Proc. SPIE 9150, Modeling, Systems Engineering, and Project Management for Astronomy VI, 91501Q (4 August 2014); https://doi.org/10.1117/12.2057029

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