2016-07-282016-07-282016-07-10ICES_2016_47http://hdl.handle.net/2346/67491United StatesNASANASA MSFCMSFCJacobs Technology302ICES302: Physio-chemical Life Support- Air Revitalization Systems -Technology and Process DevelopmentVienna, AustriaDavid F. Howard, NASA Marshall Space Flight Center, USAJames C. Knox, NASA Marshall Space Flight Center, USADavid A. Long, NASA Marshall Space Flight Center, USALee Miller, Jacobs Technology, Marshal Space Flight Center, USAGregory Cmaric, Jacobs Technology, Marshal Space Flight Center, USAJohn Thomas, Ratheon, USAThe 46th International Conference on Environmental Systems was held in Vienna, Austria, USA on 10 July 2016 through 14 July 2016.The LDST is a flight experiment demonstration designed to expose current and future candidate carbon dioxide removal system sorbents to an actual crewed space cabin environment to assess and compare sorption working capacity degradation resulting from long term operation. An analysis of sorbent materials returned to earth after approximately one year of operation in the International Space Station’s (ISS) Carbon Dioxide Removal Assembly (CDRA) indicated as much as a 70% loss of working capacity of the silica gel desiccant material at the extreme system inlet location, with a gradient of capacity loss down the bed. The primary science objective is to assess the degradation of potential sorbents for exploration class missions and ISS upgrades when operated in a true crewed space cabin environment. A secondary objective is to compare degradation of flight test to a ground test unit with contaminant dosing to determine applicability of ground testing.application/pdfengLife Support SystemsSorbent ContaminationAtmosphere RevitalizationCO2 Removal SystemsInternational Space StationPresentation