GMT refrigerant-based cooling system and design considerations

Oliver McIrwin; Mark Fraser; David Ashby; José Terán

doi:10.1117/12.2314540

6 July 2018 GMT refrigerant-based cooling system and design considerations

Oliver McIrwin, Mark Fraser, David Ashby, José Terán

Proceedings Volume 10700, Ground-based and Airborne Telescopes VII; 107002P (2018) https://doi.org/10.1117/12.2314540
Event: SPIE Astronomical Telescopes + Instrumentation, 2018, Austin, Texas, United States

Abstract

The Giant Magellan Telescope (GMT) uses four glycol-based cooling fluids as well as a refrigerant to provide cooling for telescope heat sources. The refrigerant’s evaporative characteristic has the benefit of mitigating the risk of catastrophic leaks inherent in using glycol-based fluids. It is valuable to study the benefits and disadvantages of expanding refrigerant use towards a large-scale implementation that could potentially replace all telescope glycol-based cooling. GMTO is working with M3 Engineering to complete a refrigerant trade study to determine if consolidation of cooling resources is feasible, and if a practical limit exists to expanding the use of refrigerant to cool more telescope heat sources.

Citation Download Citation

Oliver McIrwin, Mark Fraser, David Ashby, and José Terán "GMT refrigerant-based cooling system and design considerations", Proc. SPIE 10700, Ground-based and Airborne Telescopes VII, 107002P (6 July 2018); https://doi.org/10.1117/12.2314540

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