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Static Feed Water Electrolysis Subsystem Testing and Component DevelopmentA program was carried out to develop and test advanced electrochemical cells/modules and critical electromechanical components for a static feed (alkaline electrolyte) water electrolysis oxygen generation subsystem. The accomplishments were refurbishment of a previously developed subsystem and successful demonstration for a total of 2980 hours of normal operation; achievement of sustained one-person level oxygen generation performance with state-of-the-art cell voltages averaging 1.61 V at 191 ASF for an operating temperature of 128F (equivalent to 1.51V when normalized to 180F); endurance testing and demonstration of reliable performance of the three-fluid pressure controller for 8650 hours; design and development of a fluid control assembly for this subsystem and demonstration of its performance; development and demonstration at the single cell and module levels of a unitized core composite cell that provides expanded differential pressure tolerance capability; fabrication and evaluation of a feed water electrolyte elimination five-cell module; and successful demonstration of an electrolysis module pressurization technique that can be used in place of nitrogen gas during the standby mode of operation to maintain system pressure and differential pressures.
Document ID
19840009788
Acquisition Source
Legacy CDMS
Document Type
Contractor Report (CR)
Authors
Koszenski, E. P.
(Life Systems, Inc. Cleveland, OH, United States)
Schubert, F. H.
(Life Systems, Inc. Cleveland, OH, United States)
Burke, K. A.
(Life Systems, Inc. Cleveland, OH, United States)
Date Acquired
September 4, 2013
Publication Date
September 1, 1983
Subject Category
Man/System Technology And Life Support
Report/Patent Number
LSI-TR-481-4
NAS 1.26:166539
NASA-CR-166539
Accession Number
84N17856
Funding Number(s)
PROJECT: RTOP 506-64-31
CONTRACT_GRANT: NAS2-11087
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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