2017-07-072017-07-072017-07-16ICES_2017_270http://hdl.handle.net/2346/73056Marek A. Wójtowicz, Advanced Fuel Research, Inc. (AFR), USAJoseph E. Cosgrove, Advanced Fuel Research, Inc. (AFR), USAMichael A. Serio, Advanced Fuel Research, Inc. (AFR), USATim Nalette, UTC Aerospace Systems, USASandra V. Guerrero, UTC Aerospace Systems, USAWilliam Papale, UTC Aerospace Systems, USAMonique S. Wilburn, National Aeronautics and Space Administration (NASA), USAICES402: Extravehicular Activity: PLSS SystemsThe 47th International Conference on Environmental Systems was held in South Carolina, USA on 16 July 2017 through 20 July 2017.Results will be presented on the development of a reversible carbon sorbent for trace-contaminant (TC) removal for use in Extravehicular Activities (EVAs), and more specifically in the Primary Life Support System (PLSS). The current TC-control technology involves the use of a packed bed of acid-impregnated granular charcoal, which is non-regenerable, and the carbon-based sorbent under development in this project can be regenerated by exposure to vacuum at room temperature. Data on sorption and desorption of ammonia and formaldehyde, which are major TCs of concern, as well as pressure-drop calculations were used to design and test 1/6-scale and full-scale trace contaminant control system (TCCS) prototypes. Carbon sorbents were fabricated in both the granular and foam-supported forms. Sorbent performance was tested for ammonia sorption and vacuum regeneration in 1/6-scale, and pressure-drop characteristics were measured at flow rates relevant to the PLSS application.application/pdfengPrimary Life Support System (PLSS)Trace Contaminant Control System (TCCS)ammoniaformaldehydetrace contaminantsadsorptionvacuum regenerationDevelopment of Trace Contaminant Control Prototypes for the Portable Life Support System (PLSS)Presentations