2024-06-212024-06-212024-07-21ICES-2024-101https://hdl.handle.net/2346/98811Kevin Takada, NASA Marshall Space Flight Center, USADavid Hornyak, NASA Johnson Space Center(JSC), USAJohn Garr, NASA Johnson Space Center(JSC), USASteven Van Keuren, S&K Global States Solutions, Inc., USAChristine Faulkner, Jacobs Technology, Inc., USAAbdelrahman Elsherbini, Collins Aerospace, USAICES302: Physico-Chemical Life Support- Air Revitalization Systems -Technology and Process DevelopmentThe 53rd International Conference on Environmental Systems was held in Louisville, Kentucky, USA, on 21 July 2024 through 25 July 2024.Future Exploration missions will require an Oxygen Generation Assembly (OGA) to electrolyze water to supply oxygen for crew metabolic consumption. The system design will be based on the International Space Station (ISS) OGA but with added improvements based on lessons learned during ISS operations and technological advances since the original OGA was designed and built. The goal of these improvements will be to reduce system weight, crew maintenance time and spares mass while increasing reliability. Over the past year, the team has performed additional design reviews, testing and analysis in an effort to optimize upgrade efforts and achieve the best value that meets Exploration mission requirements. Upgrades that will be incorporated include: redesign of the electrolysis cell stack, redesign of the hydrogen dome, replacement of the hydrogen sensors, redesign of the recirculation loop deionizing bed, and incorporation of recirculation loop nitrogen purging and water flushing. The ISS OGA will be upgraded to an Advanced OGA (AOGA) configuration and its operation demonstrated in a relevant flight environment.application/pdfengECLSSOGAOxygen Generation AssemblyAdvanced Oxygen Generation AssemblyPresentations