2017-07-062017-07-062017-07-16ICES_2017_43http://hdl.handle.net/2346/72884Donald Carter, NASA Marshall Space Flight Center (MSFC), USAMolly Anderson, National Aeronautics and Space Administration (NASA), USADavid Tabb, National Aeronautics and Space Administration (NASA), USAICES303: Physio-Chemical Life Support- Water Recovery & Management Systems- Technology and Process DevelopmentThe 47th International Conference on Environmental Systems was held in South Carolina, USA on 16 July 2017 through 20 July 2017Future manned missions beyond low Earth orbit will include intermittent periods of extended dormancy. The mission requirement includes the capability for life support systems to support crew activity, followed by a dormant period of up to one year, and subsequently for the life support systems to come back online for additional crewed missions. NASA personnel are evaluating the architecture and operational concepts that will allow the Water Recovery System (WRS) to support such a mission. Dormancy could be a critical issue due to concerns with microbial growth or chemical degradation that might prevent water systems from operating properly when the crewed mission began. As such, it is critical that the water systems be designed to accommodate this dormant period. This paper identifies dormancy issues, concepts for updating the WRS architecture and operational concepts that will enable the WRS to support the dormancy requirement.application/pdfengWRSdormancywaterPresentations