NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Development status of a preprototype water electrolysis subsystemA preprototype water electrolysis subsystem was designed and fabricated for NASA's advanced regenerative life support program. A solid polymer is used for the cell electrolyte. The electrolysis module has 12 cells that can generate 5.5 kg/day of oxygen for the metabolic requirements of three crewmembers, for cabin leakage, and for the oxygen and hydrogen required for carbon dioxide collection and reduction processes. The subsystem can be operated at a pressure between 276 and 2760 kN/sq m and in a continuous constant-current, cyclic, or standby mode. A microprocessor is used to aid in operating the subsystem. Sensors and controls provide fault detection and automatic shutdown. The results of development, demonstration, and parametric testing are presented. Modifications to enhance operation in an integrated and manned test are described. Prospective improvements for the electrolysis subsystem are discussed.
Document ID
19820027362
Document Type
Conference Paper
Authors
Martin, R. B. (NASA Johnson Space Center Crew Systems Div., Houston, TX, United States)
Erickson, A. C. (General Electric Co. Wilmington, MA, United States)
Date Acquired
August 10, 2013
Publication Date
July 1, 1981
Subject Category
MAN/SYSTEM TECHNOLOGY AND LIFE SUPPORT
Report/Patent Number
ASME PAPER 81-ENAS-9
Meeting Information
American Society of Mechanical Engineers, Intersociety Conference on Environmental Systems(San Francisco, CA)
Distribution Limits
Public
Copyright
Other