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Thermal Environmental Services and Requirements for Columbus Payloads
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Abstract
The Columbus Attached Pressurized Module (APM), part of the International Space Station (ISS), will support scientific, technological and commercial activities in a low earth orbit micro-gravity environment. Basic and applied research, technology development and demonstration will be accomplished in areas such as material sciences, life sciences and fluid physics. The APM, now in the detailed design C/D phase, will provide location for ten International Standard Payload Racks (ISPRs) and three storage racks, in an atmospheric pressure “shirt-sleeve” environment. The maintaining of habitable conditions and the provision of essential thermal-environmental services to payloads will be ensured by the APM Environmental Control System (ECS), as defined on the Columbus Payload Accommodation Handbook, Appendix C. The ECS will control cabin air pressure, composition, temperature and humidity and module surface temperatures, to ensure suitable environmental conditions for crew and ISPRs. Essential services to the payloads provided by the ECS will include the provision of a moderate temperature water sink, gaseous nitrogen, a vacuum resource and a waste gas venting facility. This paper provides an overview of the APM environmental conditions and the relevant requirements levied on the ISPRs aimed at maintaining those conditions. The ECS provided services are then presented in detail. The results of an analysis campaign aimed at evaluating the interface conditions ensured by the vacuum and venting system to the differently located ISPRs is presented.
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Lobascio, C., Denaro, A., Gargioli, E., and Rampini, R., "Thermal Environmental Services and Requirements for Columbus Payloads," SAE Technical Paper 981777, 1998, https://doi.org/10.4271/981777.Also In
References
- The Microgravity Facilities for Columbus Programme ESA Bulletin n. 90 May 1997
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- International Standard Payload Rack to NASA/ESA/NASDA Module Interface Control Document 28 10 1996
- Columbus Payload Accommodation Handbook 27 02 1998
- Gargioli E. Trichilo M. Lobascio C. “The Columbus APM Environmental Control System: a Design-to-Cost Application in Space” 48 th International Astronautical Congress Oct. 6-10 1997 Turin, Italy
- Space Station Program Fluid Procurement and Use Control Specification 10 08 1994
- Space Station External Contamination Control Requirements 21 01 1994
- The Determination of Offgassing Products from Materials and Assembled Articles to Be Used in a Manned Space Vehicle Crew Compartment 1 February 1989
- Flammability, Odor, Offgassing, and compatibility Requirements and Test Procedures for Materials in Environments that Support Combustion April 1991