Thermal management integration using plug-and-play variable emissivity devices

Kenneth C. Shannon III; Judd Sheets; Howard Groger; Andrew Williams

doi:10.1117/12.818758

6 May 2009 Thermal management integration using plug-and-play variable emissivity devices

Kenneth C. Shannon III, Judd Sheets, Howard Groger, Andrew Williams

Proceedings Volume 7330, Sensors and Systems for Space Applications III; 73300F (2009) https://doi.org/10.1117/12.818758
Event: SPIE Defense, Security, and Sensing, 2009, Orlando, Florida, United States

Abstract

The performance of mission-critical components and systems within spacecraft and satellites requires the ability to control the local thermal environment. Under conditions of relatively constant component and system loading, this would involve radiative dissipation of both internally and externally generated heat loads and altering thermal balances to provide heating where necessary. As the local thermal load changes with component use, the need arises to alter the heat transfer rates and dissipation within the spacecraft. It is also desirable to be able to evaluate, reconfigure or repair space-based thermal control systems using only ground station commands. These needs can be met using a Plug-and-Play variable-emittance control system where operational analysis and reconfiguration is accomplished via an improved Universal Serial Bus (USB) or space-wire controlled architecture. This paper presents a modular, USB/space-wire-driven thermal control system using a solid-state thin-film infrared variable-emittance device (EclipseVED^TM) from Eclipse Energy Systems, Inc. The paper discusses critical issues including connectivity, device-control scale-up for the advancement of an integrated variable-emittance system, comparison of device weight to other variable emittance systems, the capacity to replace or repair devices in-flight, the survivability of the system in space and the importance of individual device control.

Citation Download Citation

Kenneth C. Shannon III, Judd Sheets, Howard Groger, and Andrew Williams "Thermal management integration using plug-and-play variable emissivity devices", Proc. SPIE 7330, Sensors and Systems for Space Applications III, 73300F (6 May 2009); https://doi.org/10.1117/12.818758

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