Exploiting Capillary Sorbent Films for Air Revitalization aboard Spacecraft: Analysis of a Semi-Passive CO2 Scrubber

dc.creatorWeislogel, Mark
dc.creatorTorres, Logan
dc.creatorJenson, Ryan
dc.creatorGraf, John
dc.creatorHand, Lawerance
dc.creatorBelancik, Grace
dc.creatorJan, Darrell
dc.creatorLevri, Julie
dc.date.accessioned2020-07-30T00:17:36Z
dc.date.available2020-07-30T00:17:36Z
dc.date.issued2020-07-31
dc.descriptionMark Weislogel, IRPI LLC, USA
dc.descriptionLogan Torres, IRPI LLC, USA
dc.descriptionRyan Jenson, IRPI LLC, USA
dc.descriptionJohn Graf, National Aeronautics and Space Administration (NASA), USA
dc.descriptionLawerance Hand, National Aeronautics and Space Administration/Ames Research Center (NASA/ARC), USA
dc.descriptionGrace Belancik, National Aeronautics and Space Administration (NASA), USA
dc.descriptionDarrell Jan, National Aeronautics and Space Administration (NASA), USA
dc.descriptionJulie Levri, National Aeronautics and Space Administration (NASA), USA
dc.descriptionICES302: Physio-chemical Life Support- Air Revitalization Systems -Technology and Process Development
dc.descriptionThe proceedings for the 2020 International Conference on Environmental Systems were published from July 31, 2020. The technical papers were not presented in person due to the inability to hold the event as scheduled in Lisbon, Portugal because of the COVID-19 global pandemic.en_US
dc.description.abstractLiquid sorbents have provided a primary means for robust carbon dioxide (CO2) control aboard submarines for decades. Unfortunately, such systems have not been adopted for use aboard spacecraft due to the fact that fine droplet sprays, thin falling films, and buoyancy-driven bubbly flows are not easily managed in the essentially gravity-free environments of orbiting spacecraft. Such applied engineering challenges have remained outstanding for the microgravity fluid physics community. As a work-around, in this research, a stable, silent capillary-driven ‘thin film’ is produced over a massively parallel network of open channels for both CO2 uptake and degas functions in a microgravity environment. Following several quantified assumptions, simple analytical models of species, heat, mass, and momentum transport are invoked providing clear design guides for a future engineering demonstration of the approach aboard the International Space Station. For critical sorbent properties such as CO2 capacity, effective diffusion rate, and concentration- and temperature-dependent viscosity, we provide the essential requirements of flow rate, size, shape, stability, power draw, and other aspects of the system. The results imply that a considerable reduction in system mass and volume is possible for the liquid sorbent approach for CO2 scrubbing when compared to the current state of the art.
dc.format.mimetypeapplication/pdf
dc.identifier.otherICES_2020_59
dc.identifier.urihttps://hdl.handle.net/2346/86421
dc.language.isoeng
dc.publisher2020 International Conference on Environmental Systems
dc.subjectcarbon dioxide scrubber
dc.subjectliquid sorbent
dc.subjectcapillary fluidics
dc.titleExploiting Capillary Sorbent Films for Air Revitalization aboard Spacecraft: Analysis of a Semi-Passive CO2 Scrubberen_US
dc.typePresentation

Files

Original bundle

Now showing 1 - 1 of 1
Loading...
Thumbnail Image
Name:
ICES-2020-59.pdf
Size:
407.98 KB
Format:
Adobe Portable Document Format
Description:

License bundle

Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.57 KB
Format:
Item-specific license agreed upon to submission
Description: