This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Temperature Control Analysis for the U.S. Lab, Node 1, and Elements Attached to Node 1
Annotation ability available
Sector:
Language:
English
Abstract
The International Space Station (ISS) Temperature and Humidity Control (THC) system has been designed with the intent of supplying the air cooling needs of various elements from the U.S. Lab heat exchanger assembly. Elements without independent air cooling capability are known as “parasitic” elements; these are Node 1, the Cupola, and the Mini Pressurized Logistics Module (MPLM). Analysis results are presented which show expected temperatures in the MPLM, and Node 1, as various heat loads are present in the respective elements.
Analyses within this paper are coordinated with the results obtained from the Development Test of the complex USL/Node 1 integrated ducting system. This test was conducted in the summer of 1995, at the McDonnell Douglas test facility in Huntington Beach, California. The test results indicate that when one USL heat exchanger assembly is operating, the air flow rates provided to the parasitic environments are lower than necessary to accomplish satisfactory cooling under high parasitic heat load conditions. Operating in the “Enhanced Mode”, wherein the second cabin air fan is also activated, is shown to result in acceptable cooling for the parasitic elements under all conditions.
Citation
von Jouanne, R. and Barker, R., "Temperature Control Analysis for the U.S. Lab, Node 1, and Elements Attached to Node 1," SAE Technical Paper 972564, 1997, https://doi.org/10.4271/972564.Also In
References
- von Jouanne, R.G. Barker, R.S. “A Description and Assessment of Intermodule Ventilation as Planned for International Space Station Alpha” ICES 1995, SAE 951631 July 1995
- McDonnell Douglas Astronautics Company “G189A Generalized Environmental/Thermal Control and Life Support Systems Computer Program, Program Manual” September 1971
- “VE-023 Submittal from IPT 33 (IMV/THC/TCS/FDS/ ACS IPT); Analyses and Analytical Models, Assembly and Subassembly, Volume II, Section 107: Description of an Integrated ECLSS Model for Assessing Conditions within the USL, Node 1, and Passive Elements Attached to Node 1” von Jouanne Roger G. August 1995
- “Space Station Environmental Control and Life Support System, Preliminary Conceptual Design” Lin C. H. NASA JSC September 1982
- “VE-023 Submittal from IPT 33 (IMV/THC/TCS/FDS/ ACS IPT); Analyses and Analytical Models, Assembly and Subassembly, Volume III, Section 121: Analysis of USOS to MPLM IMV Interfaces for Flight 6A” Barker R. S. January 1997