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International Space Station Thermal Control Design Changes and Decision Rationale
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English
Abstract
Many changes have been approved for implementation into the International Space Station (ISS) design for Thermal Control (TC) since the System Design Review (SDR)conducted in March 1994. Some of the changes have resulted in changes in the basic content of the ISS TC Subsystem (TCS) while others have addressed more efficient ways of developing the system.
The design changes were made to address several distinct facets of the program. Foremost was the intent to control costs of the ISS program. The intent to ensure that the ISS is not completely dependent on any one partner was a major reason for other changes. Refinement of the SDR design and identification and solution of problems with the SDR design resulted in other design changes. While the technology to be used for the ISS TC has remained the same during this period, significant changes have been made to the way the ISS thermal control technology is implemented.
The changes have ranged from development of the design of Early External Active Thermal Control (EEATC) to changes to the number of thermal components required for ISS reliability.
The updates are described in this paper along with the rationale the ISS program office and Boeing prime contractor considered when approving the changes.
Authors
Citation
Chambliss, J. and Esquivel, G., "International Space Station Thermal Control Design Changes and Decision Rationale," SAE Technical Paper 951648, 1995, https://doi.org/10.4271/951648.Also In
References
- Chambliss, J. Dominick, J. Kukla, J. McCall, F. “An Overview of the Redesigned Space Station Thermal Control System” SAE Technical Paper 941495 24th International Conference on Environmental Systems Friedrichshafen, Germany June 1994
- ISS SSPO configuration management for completed International Space Station DDPs
- McCall, F. Presentation of TCS Architecture and Status International Space Station System Design Review March 1994
- Duffy, R. Presentation of TCS Architecture and Status International Space Station Incremental Design Review #1 March 1995