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NASA Applications using Fuel Cell Electrolysis Technologies

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NASA Applications using Fuel Cell Electrolysis Technologies ( nasa-applications-using-fuel-cell-electrolysis-technologies )

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Regenerative Fuel Cell Project Technical Summary Technology development, ground demonstration effort; not a flight project System Requirements • Must demonstrate net energy storage capability within a simulated lunar environment • Fully packaged automatic system with an identified a path to a packaged specific energy > 320 W•hr/kg (project goal > 550 W•hr/kg) RFC System: Nominal 100 We discharge power on a 28 ± 5% V voltage bus • Fuel Cell (FC) Stack o Support load profile ranging from 0 to 400 W with a bus potential > 9 Vdc o FC stack capable of sustained operation on >15% inert contaminants (He, N2, etc.) in either/both reactant streams • Electrolyzer (EZ) Stack o Self-pressurize from ambient to 1800 psig (potential 2500 psig) balance pressure (H2 ≈ O2) o Maximum charge power ≈ 1.5 kW • TVAC Environment o Temperatures = < -173 oC to +105 oC o Pressures = Ambient to < 10-5 Torr 16

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