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Impacts of Rack Configuration on Columbus Avionics Air Loop Architecture and Control
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English
Abstract
Air cooling of the avionics units (Subsystem equipment and Payloads) of the Columbus Pressurised Modules (PM) is performed via avionics loops, providing heat collection from dedicated racks and rejecting the collected heat load by means of an avionics heat exchanger (AHX).
An overview of possible rack architectures, air loop accommodations and control solutions which are candidates for the Columbus PMs is presented.
The system requirements have been assessed as a starting point, in order to define the requested capabilities and the constraints that the design of the rack and the loop has to fulfil.
In particular, the architectures of the European single and double rack and of the U.S. double rack in Space Station Freedom (SSF) have been compared and the relevant options of accommodation in the avionics loops and functional interfaces have been investigated.
Some discrepancies, such as the different application of the air cooling standard, have been identified that make the interchangeability of racks on the SSF PMs difficult. Possible solutions to the problem and impacts on the design have been presented.
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Citation
Accardi, F., Lobascio, C., D'Auria, R., and Veneri, R., "Impacts of Rack Configuration on Columbus Avionics Air Loop Architecture and Control," SAE Technical Paper 901283, 1990, https://doi.org/10.4271/901283.Also In
References
- ARINC - Air Transport Equipment Cases and Racking 15 03 1974 Aeronautical Radio Inc. Annapolis, Maryland, USA
- Cushman R. Burke H. Avionics Air Cooling for Space Station Freedom SAE Paper 891459 24 26 07 1989 San Diego, Ca, USA
- Hienerwadel K.O. Kring G. Design of the ECLSS for the Columbus Pressurised Modules SAE Paper 891531 24 26 07 1989 San Diego, Ca, USA
- Leiseifer H.P. Hienerwadel K.O. Patti B. Air Loop Concepts for Environmental Control and Life Support Systems SAE Paper 891537 24 26 07 1989 San Diego, Ca, USA
- NASA/ESA/NASDA Payload Rack Interchangeability Meeting Minutes 23 27 03 1990 Tokyo, Japan