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Comparison of Exploration Oxygen Recovery Technology Options Using ESM and LSMACIn preparation for long duration manned space flight, numerous technology development efforts are ongoing in the area of environmental control and life support (ECLS). In cooperation with international, industry, and academic partners, NASA seeks to leverage the International Space Station as a testbed for technologies targeted for Exploration-class missions. In recent years, Equivalent Systems Mass (ESM) analyses have been conducted to evaluate the relative breakeven points and to compare technologies as part of ECLS architectural trades. While these studies have provided important data pertaining to key engineering metrics, additional considerations are important to more fully understand the potential impacts and costs associated with selecting a specific architecture. A tool, called the Life Support Multi-Dimensional Assessment Criteria (LSMAC), was recently proposed by Sierra Nevada Corporation in an attempt to incorporate influences of these additional considerations including Maintainability, Risk Analysis, Technology Readiness Level, Radiation Impacts, Manufacturing Costs, Reliability, Human Factors, and Un-Crewed Operations. As a first step toward evaluating and implementing this tool, LSMAC was used to revisit the ISS oxygen recovery trade from the 1990’s wherein Sabatier was selected over Bosch technology. Second, the tool was used to compare oxygen recovery developmental technologies currently in work. The results of these studies as well as a comparison with standalone ESM analyses are reported. Further, a discussion of the potential application of the tool across the ECLS portfolio and its potential use in future technology selection for ISS flight demonstrations is provided.
Document ID
20205004679
Acquisition Source
Langley Research Center
Document Type
Conference Paper
Authors
Morgan B Abney
(Langley Research Center Hampton, VA)
Walter Schneider
(Marshall Space Flight Center Redstone Arsenal, Alabama, United States)
Brittany Brown
(Marshall Space Flight Center Redstone Arsenal, Alabama, United States)
Christine Stanley
(Marshall Space Flight Center Redstone Arsenal, Alabama, United States)
Kevin Lange
(Jacobs (United States) Dallas, Texas, United States)
John Wetzel
(Sierra Nevada Corporation (United States) Sparks, Nevada, United States)
Robert Morrow
(Sierra Nevada Corporation (United States) Sparks, Nevada, United States)
Robyn Gatens
(National Aeronautics and Space Administration Washington D.C., District of Columbia, United States)
Date Acquired
July 20, 2020
Subject Category
Man/System Technology And Life Support
Meeting Information
Meeting: 50th International Conference on Environmental Systems - ICES 2020
Location: Lisbon
Country: PT
Start Date: July 12, 2020
End Date: July 16, 2020
Sponsors: ILC Dover (United States), Paragon Space Development Corporation (United States), Collins Aerospace
Funding Number(s)
WBS: 869021.01.07.01.01
Distribution Limits
Public
Copyright
Public Use Permitted.
Technical Review
Single Expert
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