Experimental Validation of Vacuum Desorption in 1-D Model of CO2 Removal



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46th International Conference on Environmental Systems


Researchers at NASA’s Marshall Space Flight Center are refining a system-level model of the Carbon Dioxide Removal Assembly (CDRA) which will aid in the design of the next generation four-bed molecular sieve for human exploration beyond low earth orbit. A vacuum characterization test-stand (VCTS) has been built to study sorbent thermal and sorption characteristics in support of this modeling effort. This paper describes the VCTS and presents experimental results of hydraulic and thermal characterization, CO2 breakthrough, and vacuum desorption tests on the VCTS.  We then compare experimental results with the one-dimensional model.


United States
Purdue University
Marshall Space Flight Center, NASA
Yale University
ICES300: ECLSS Modeling and Test Correlations
Vienna, Austria
Karen N. Son, Purdue University, USA
Mathew V. Paragano, Yale University, USA
Carlos F. Gomez, Marshall Space Flight Center, USA
James C. Knox, Marshall Space Flight Center, USA
The 46th International Conference on Environmental Systems was held in Vienna, Austria, USA on 10 July 2016 through 14 July 2016.


carbon dioxide removal, environmental monitoring, heat transfer, heat transfer coefficients, sorbents, diffusion, mass transfer, vacuum desorption, permeability