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Intermodule Ventilation Studies for the Space Station
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English
Abstract
This paper examines the ability of the space station intermodule ventilation system to maintain centralized control of CO2 removal and O2 supply. The resulting concentration gradients that will arise are calculated by assuming steady state, ideal gas, isothermal conditions, and perfect mixing of air within and between the pressurized elements. In order to estimate the degree of mixing actually obtained for a given ventilation scheme, a program has been developed under ECLSS Integration Analysis Contract NAS8-36407 for Marshall Space Flight Center based on a potential flow solution technique. Preliminary results from this study indicate that substantial short circuiting and recirculation air flow patterns could arise if a simple duct and diffuser air exchange method at the docking port interface were employed.
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Citation
Davis, R. and Reuter, J., "Intermodule Ventilation Studies for the Space Station," SAE Technical Paper 871428, 1987, https://doi.org/10.4271/871428.Also In
References
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- Smith J. P. “Systems Improved Numerical Differencing Analyzer (SINDA) User's Manual,” NASA Contract 9-10435 TRW Systems Group April 1971
- Laux J. G. Richards J. S. “Space Shuttle STS-9 Final Flight Evaluation Report Volume II - Spacelab Systems,” MSFC-RPT-1038 George C. Marshall Space Flight Center April 30 1984