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Material Usage in High Pressure Oxygen Systems for the International Space StationThe Nitrogen/Oxygen Recharge System (NORS) for the International Space Station (ISS) Program was required as part of the Space Shuttle retirement efforts to sustain the ISS life support systems. The system is designed around a 7000 psia Oxygen or Nitrogen Recharge Tank Assembly which is able to be utilized both internally and externally to the ISS. Material selection and usage were critical to ensure oxygen compatibility for the design, while taking into consideration toxicity, weldability, brazability and general fabrication and assembly techniques. The system uses unique hardware items such a composite overwrap pressure vessel (COPV), high pressure mechanical gauges, compact regulators and valves, quick disconnects, metal tubing and flexhoses. Numerous challenges and anomalies were encountered due to the exotic nature of this project which will be discussed in detail. The knowledge gained from these anomalies and failure resolutions can be applied to more than space applications, but can also be applicable to industry pressurized systems.
Document ID
20140001491
Acquisition Source
Johnson Space Center
Document Type
Other
Authors
Kravchenko, Michael (Boeing Research and Technology Houston, TX, United States)
Sievers, D. Elliott (Boeing Research and Technology Houston, TX, United States)
Date Acquired
March 14, 2014
Publication Date
January 1, 2014
Subject Category
Man/System Technology And Life Support
Spacecraft Design, Testing And Performance
Report/Patent Number
JSC-CN-29483
Meeting Information
Meeting: SAMPE 2014 Annual Tech Conference and Exhibition
Location: Seattle, WA
Country: United States
Start Date: June 2, 2014
End Date: June 5, 2014
Sponsors: Society for the Advancement of Materials and Process Engineering
Funding Number(s)
CONTRACT_GRANT: NAS15-10000
Distribution Limits
Public
Copyright
Public Use Permitted.

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