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SUMMARY A research and development program is presently being conducted at Life Systems, Inc. to continue the development of a method to generate oxygen for crew metabolic consumption during extended manned space flights. pursued is that of static feed water electrolysis. The concept being Spacecraft water is statically fed (no moving parts) to the electrolysis site where it is electrolyzed, yielding hydrogen and oxygen saturated at the tempera ture and pressure of the electrolyte in the water electrolysis cell These moist gases are then passed through an electrochemical Dehydrator Module to remove the water vapor The Dehydrator Module accomplishes this by electro lyzing the water vapor contained in both the incoming hydrogen and oxygen gas streams. This vapor is absorbed in the acid electrolyte due to its lower water vapor pressure (as a result of water consumption), and electrolyzed. The result is additional dry product gases The present program, "Technology Advancement of The Static Water Electrolysis Process," accomplished the following. 1 Advanced the system technology by: * improving components, such as the product gas pressure regulators and the coolant pump * modifying instrumentation and control electronics * performing aerosol studies * performing a system design analysis 2 Advanced single cell and module level technology by providing new " high current density current collectors * insulation plates with integral cooling passages * advanced non-corrosive electrode substrates * O-rings less susceptible to taking a permanent set 3. Verifiedthisadvancementviatestingatthe: * single cell level Specific major * * six-cell module level (one-man metabolic oxygen) results of the above work included. Completion of a 30-day electrode test using a Life Systems, Inc. -developed high performance catalyst During startup the I Zile Stysks, hie.PDF Image | STATIC FEED WATER ELECTROLYSIS PROCESS
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