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High Pressure Electrochemical Oxygen Generation for ISS, Phase II

Metadata Updated: November 12, 2020

Giner, Inc. has developed an advanced high pressure electrochemical oxygen concentrator (EOC) that offers a simple alternative to the use of pressure swing adsorption (PSA) systems to generate high pressure oxygen for the International Space Station (ISS) and future human space flight applications. The high pressure EOC is based on proven electrolyzer technology demonstrated at Giner and delivers a continuous stream of dry oxygen with a highly controllable oxygen pressure (0-3600 psi) by feeding a low pressure humidified oxygen stream into the cathode side of the stack where oxygen is consumed. The generation of pure oxygen at 3600 psig is particularly applicable for filling tanks used for extravehicular activity (EVA). The benefits of using this technology rather than a standard high or large pressure differential electrolyzer stack include: 1.) significantly reduced membrane degradation resulting in an improvement in stack lifetime, 2.) increased safety as there is no risk of producing a combustible gas mixture in the event of gas crossover through the MEA, and 3.) simplified balance of plant (BOP) for the reason that typical liquid cathode feed electrolyzer stacks require sophisticated water management. Giner further simplified the high pressure EOC BOP by integrating a low pressure static vapor feed electrolyzer (SVFE) into a shared-end-plate stack.

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Metadata Created Date November 12, 2020
Metadata Updated Date November 12, 2020

Metadata Source

Harvested from NASA Data.json

Additional Metadata

Resource Type Dataset
Metadata Created Date November 12, 2020
Metadata Updated Date November 12, 2020
Publisher Space Technology Mission Directorate
Unique Identifier Unknown
Identifier TECHPORT_90181
Data First Published 2018-04-01
Data Last Modified 2020-01-29
Public Access Level public
Bureau Code 026:00
Metadata Context
Metadata Catalog ID
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Catalog Describedby
Harvest Object Id 9babe96e-0600-41c4-a5fe-b0c81cc867a8
Harvest Source Id 58f92550-7a01-4f00-b1b2-8dc953bd598f
Harvest Source Title NASA Data.json
Homepage URL
Program Code 026:027
Source Datajson Identifier True
Source Hash f164c52ffae2c5bf48c81c45019f45bdb26dca34
Source Schema Version 1.1

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