The Collapsible Contingency Urinal (CCU) for Spacecraft

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dc.creatorWeislogel, Mark
dc.creatorJenson, Ryan
dc.creatorKrishcko, Oleg
dc.creatorTorres, Logan
dc.creatorAdam, Naids
dc.creatorJohn, Graf
dc.creatorPettit, Donald
dc.date.accessioned2023-06-15T14:46:57Z
dc.date.available2023-06-15T14:46:57Z
dc.date.issued2023-07-16
dc.descriptionMark Weislogel, IRPI LLC, USA
dc.descriptionRyan Jenson, IRPI LLC, USA
dc.descriptionOleg Krishcko, IRPI LLC, USA
dc.descriptionLogan Torres, IRPI LLC, USA
dc.descriptionAdam Naids, NASA Johnson Space Center(JSC)
dc.descriptionJohn Graf, NASA Johnson Space Center(JSC)
dc.descriptionDonald Pettit, NASA Johnson Space Center(JSC)
dc.descriptionICES304: Physio-Chemical Life Support- Waste Management Systems- Technology and Process Development
dc.descriptionThe 52nd International Conference on Environmental Systems was held in Calgary, Canada, on 16 July 2023 through 20 July 2023.
dc.description.abstractThe routine, hygienic collection and processing of urine aboard spacecraft remains difficult. This fact is perhaps as attributable to the myriad requirements of spaceflight life support as it is to the acute challenges of multiphase fluid physics in microgravity. In this paper we present the specification, development, flight demonstration, and certification of a Collapsible Contingency Urinal (CCU) for use aboard spacecraft. The passive device exploits recent advances in microgravity capillary fluidics research, combining robust superhydrophobic and superhydrophilic substrates that mimic gravity, where, in effect, droplets ‘fall’ and bubbles ‘rise.’ According to crew commentary, the device successfully delivers a method for clean, ergonomic no-moving-parts urine collection for females, which is in turn successfully adapted for males. The encouraging results provide a practical solution for CCUs aboard spacecraft as well as identify a design path forward for the myriad passive fluids management tasks ahead for space exploration. Directions for future CCU production are highlighted in summary.
dc.format.mimetypeapplication/pdf
dc.identifier.otherICES-2023-8
dc.identifier.urihttps://hdl.handle.net/2346/94470
dc.language.isoeng
dc.publisher2023 International Conference on Environmental Systems
dc.subjectContingency urine collection
dc.subjectcapillary fluidics
dc.subjectcapillary fluidics
dc.subjectmicrogravity fluid mechanics
dc.subjectsurface tension
dc.subjectwetting
dc.subjectfemale
dc.subjectmale
dc.subjecttechnology demonstration
dc.subjectISS
dc.titleThe Collapsible Contingency Urinal (CCU) for Spacecraften_US
dc.typePresentations

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