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High Pressure Water Electrolysis for Space Station EMU Recharge
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English
Abstract
Future space missions will feature extensive EVA operations. In order to avoid the expendables and logistics penalties associated with recharging the EMU's oxygen supply bottles on the ground, a High Pressure Oxygen Recharge System (HPORS), is being developed for use aboard the Space Station. The HPORS will be an electrolysis system capable of providing oxygen at up to 6000 psia without the use of a mechanical compressor, using only the facilities that will be available on board the Space Station (electrical, nitrogen and water). The Hamilton Standard HPORS will be based on a solid polymer electrolyte system which has already demonstrated thousands of hours of performance at 3000 psia in an oxygen generating plant for military applications. The program includes testing of various water feed modes, operating temperatures and current densities in order to optimize the system size, weight and power consumption. New cell and system hardware will be developed to ensure compatibility with high pressure hydrogen and oxygen and to permit operation in a zero gravity environment.
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Citation
Lance, N., Puskar, M., Moulthrop, L., and Zagaja, J., "High Pressure Water Electrolysis for Space Station EMU Recharge," SAE Technical Paper 881064, 1988, https://doi.org/10.4271/881064.Also In
References
- Nason J. R. Tremblay P. G. “High Pressure Water Electrolysis for the Space Station” 17th Intersociety Conference on Environmental Systems Seattle, WA July 13-15 1987
- Bond A. C. et al “Design Guide for High Pressure Oxygen Systems” NASA Reference Publication 1113 August 1983
- NASA Hydrogen Safety Manual”, TM-X-52454 1968
- “Materials Selection List for Space Hardware Systems” MSFC-HDBK-527 REV E 1986