International Space Station Water Use for Oxygen Generation
Abstract
The International Space Station (ISS) recycles water. The environmental control and life support system is not currently a closed loop system. Oxygen must be resupplied on-orbit. ISS has Airlock tank oxygen, a Russian oxygen generator-Elektron, and Progress vehicle tank oxygen. The oxygen generator converts water into oxygen. About half of the resupplied water aboard ISS is used for oxygen generation. Past water usage predictions have not reflected times when the oxygen generator is on versus off. This can lead to over-predicting water resupply. The water usage analysis calculates water usage from Progress vehicle resupply and oxygen generation from January 2003 to March 2004. The analysis shows the impacts of filling the Progress vehicles with oxygen. The analysis will determine the correlation between the Elektron water usage by the manual calculation method versus using Elektron current telemetry method. Quantifying the impacts of Progress water resupply and finding the best tracking method will help make water resupply predictions more accurate in the future.
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During a 6-month period on the International Space Station, an oxygen equivalent of 57.3 kg from SFOG resulted in 64.5 L of water savings, which amounted to 11% savings in the water used for oxygen generation over an entire year.
“For example, during a 6-month period on the international space station, it was found that an oxygen equivalent of 57.3 kg from SFOG resulted in 64.5 L of water savings, which amounted to 11% savings in the water used for oxygen generation over an entire year [18].”
Cited by
Sorted by citations
Maintenance, reliability and policies for orbital space station life support systems
Russell, J. F., & Klaus, D. M. (2006) · Reliability Engineering & System Safety · doi:10.1016/j.ress.2006.04.020 · Cited by 40 · see citing works
“The Elektron system was designed to continuously electrolyze water into oxygen drawing 32A of electrical current (or at a reduced state of 25A) to maintain acceptable oxygen levels in the cabin [21].”
MethodApplying Analysis of International Space Station Crew-Time Utilization to Mission Design
Russell, J. F., Klaus, D. M., & Mosher, T. J. (2006) · Journal of Spacecraft and Rockets · doi:10.2514/1.16135 · Cited by 32 · see citing works
Keller, R. J., Porter, W., Goli, K., Rosenthal, R., Butler, N., & Jones, J. A. (2021) · Life · doi:10.3390/life11080844 · Cited by 23 · see citing works
International Space Station Water Usage Analysis
Kulhanjian, A., Yeoman, D. A., & Philistine, C. L. (2008) · SAE technical papers on CD-ROM/SAE technical paper series · doi:10.4271/2008-01-2009 · Cited by 2 · see citing works
Self-citation
- Authors
- Philistine, C. L.
- Affiliations
- Integrated Defense Systems, The Boeing Company
- Corresponding author
- Philistine, Cynthia L.
- Venue
- SAE Technical Paper Series
- Publisher
- SAE International
- Published
- 2004-07-19
- Volume
- 1
- ISSN
- 0148-7191 (ISSN-L)
- 2688-3627
- OpenAlex
- W1543073696
- Cited by
- 4
- References
- 0
- Citations by year
- 2021: 1
- FWCI
- 1.05
- Type
- conference paper
- Language
- en
- Open access
- closed
- Locations
- SAE technical papers on CD-ROM/SAE technical paper series (publishedVersion)
- Topics
- Physical Sciences › Engineering › Aerospace Engineering › Space Exploration and Technology
- Physical Sciences › Engineering › Aerospace Engineering › Spacecraft Design and Technology
- Physical Sciences › Engineering › Aerospace Engineering › Spacecraft and Cryogenic Technologies
- Keywords
- International Space Station, water reuse, oxygen production, environmental control and life support systems, closed-loop life support
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