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Proceedings Paper

Glycol leak detection system
Author(s): Paul Rabe; Keith Browne; Janus Brink; Christiaan J. Coetzee
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Paper Abstract

MonoEthylene glycol coolant is used extensively on the Southern African Large Telescope to cool components inside the telescope chamber. To prevent coolant leaks from causing serious damage to electronics and optics, a Glycol Leak Detection System was designed to automatically shut off valves in affected areas. After two years of research and development the use of leaf wetness sensors proved to work best and is currently operational. These sensors are placed at various critical points within the instrument payload that would trigger the leak detector controller, which closes the valves, and alerts the building management system. In this paper we describe the research of an initial concept and the final accepted implementation and the test results thereof.

Paper Details

Date Published: 27 July 2016
PDF: 7 pages
Proc. SPIE 9906, Ground-based and Airborne Telescopes VI, 99065H (27 July 2016);
Show Author Affiliations
Paul Rabe, Southern African Large Telescope (South Africa)
Keith Browne, Southern African Large Telescope (South Africa)
Janus Brink, Southern African Large Telescope (South Africa)
Christiaan J. Coetzee, Southern African Large Telescope (South Africa)

Published in SPIE Proceedings Vol. 9906:
Ground-based and Airborne Telescopes VI
Helen J. Hall; Roberto Gilmozzi; Heather K. Marshall, Editor(s)

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