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Air Circulation and Carbon Dioxide Concentration Study of International Space Station Node 2 with Attached Modules
Technical Paper
2004-01-2498
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Crew health is dependent on the concentration of carbon dioxide in the atmosphere breathed. Often, models used for concentration have used the assumption that each module of the space station is well mixed, i.e. that the CO2 concentration is constant throughout the module. In this paper, Computational Fluid Dynamics (CFD) modeling is used to assess and validate the accuracy of that assumption. The concentration of carbon dioxide as calculated by CFD was compared to the concentration as calculated by a lumped parameter model. The assumption that the module is well mixed allows the use of relatively simple models, which can be developed and run quickly in order to support decisions for on-orbit analysis. CFD models generate more detailed information, such as CO2 gradients within the modules and airflow and mixing characteristics. However, CFD models, particularly transient models, take longer to develop and use.
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Citation
Turner, E., Son, C., Smirnov, E., Ivanov, N. et al., "Air Circulation and Carbon Dioxide Concentration Study of International Space Station Node 2 with Attached Modules," SAE Technical Paper 2004-01-2498, 2004, https://doi.org/10.4271/2004-01-2498.Also In
References
- SAE Technical Paper 2002-01-2346 “International Space Station (ISS) Carbon Dioxide (CO 2 ) Partial Pressure Analysis” Turner Edward H. Boeing Space and Communication Group July 2002
- SAE Technical Paper 2002-01-2341 “Investigation of Airflow and Accumulation of Carbon Dioxide in the Service Module Crew Quarters.” Son Chang H. et. Al The Boeing Company July 2002
- SSP 41000 System Specification for International Space Station
- SAE Technical Paper 2000-01-2345 “International Space Station Carbon Dioxide Removal Assembly Testing.” Knox James C. NASA, Marshall Space Flight Center July 2000