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Long Duration Sorbent TestbedThe Long Duration Sorbent Testbed (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.
Document ID
20160009718
Acquisition Source
Marshall Space Flight Center
Document Type
Conference Paper
Authors
Howard, David F.
(NASA Marshall Space Flight Center Huntsville, AL, United States)
Knox, James C.
(NASA Marshall Space Flight Center Huntsville, AL, United States)
Long, David A.
(NASA Marshall Space Flight Center Huntsville, AL, United States)
Miller, Lee
(Jacobs Technology, Inc. Huntsville, AL, United States)
Cmaric, Gregory
(Jacobs Technology, Inc. Huntsville, AL, United States)
Thomas, John
(Raytheon Co. Huntsville, AL, United States)
Date Acquired
August 1, 2016
Publication Date
July 10, 2016
Subject Category
Man/System Technology And Life Support
Report/Patent Number
ICES-2016-47
M16-5342
Meeting Information
Meeting: International Conference on Environmental Systems
Location: Vienna
Country: Austria
Start Date: July 10, 2016
End Date: July 14, 2016
Sponsors: International Conference On Environmental Systems, Inc.
Distribution Limits
Public
Copyright
Public Use Permitted.
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