Performance Evaluation of Engineered Structured Sorbents for Atmosphere Revitalization Systems on Board Crewed Space Vehicles and Habitats

Howard, David E.; Perry, Jay L.; Knox, James C.; Junaedi, Christian; Roychoudhury, Subir

doi:10.2514/6.2011-5218

41st International Conference on Environmental Systems 2011

DOI: 10.2514/6.2011-5218

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Performance Evaluation of Engineered Structured Sorbents for Atmosphere Revitalization Systems on Board Crewed Space Vehicles and Habitats

David E. Howard

Jay L. Perry

James C. Knox³

et al.

Abstract: Engineered structured (ES) sorbents are being developed to meet the technical challenges of future crewed space exploration missions. ES sorbents offer the inherent performance and safety attributes of zeolite and other physical adsorbents but with greater structural integrity and process control to improve durability and efficiency over packed beds. ES sorbent techniques that are explored include thermally linked and pressure-swing adsorption beds for water-save dehumidification and sorbent-coated metal meshe… Show more

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Development and Testing of a Sorbent-Based Atmosphere Revitalization System 2010/2011

Miller¹,

Knox

2011

41st International Conference on Environmental Systems

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Spacecraft being developed for future exploration missions incorporate EnvironmentalControl and Life Support Systems (ECLSS) that limit weight, power, and volume thus requiring systems with higher levels of efficiency while maintaining high dependability and robustness. For air revitalization, an approach that meets those goals utilizes a regenerative Vacuum-Swing Adsorption (VSA) system that removes 100% of the CO 2 from the cabin atmosphere as well as 100% of the water. A Sorbent Based Atmosphere Revitalization (SBAR) system is a VSA system that utilizes standard commercial adsorbents that have been proven effective and safe in spacecraft including Skylab and the International Space Station. The SBAR system is the subject of a development, test, and evaluation program that is being conducted at NASA's Marshall Space Flight Center. While previous testing had validated that the technology is a viable option, potential improvements to system design and operation were identified. Modifications of the full-scale SBAR test articles and adsorption cycles have been implemented and have shown significant performance gains resulting in a decrease in the consumables required for a mission as well as improved mission safety. Previous testing had utilized single bed test articles, during this period the test facility was enhanced to allow testing on the full 2-bed SBAR system. The test facility simulates a spacecraft ECLSS and allows testing of the SBAR system over the full range of operational conditions using mission simulations that assess the real-time performance of the SBAR system during scenarios that include the metabolic transients associated with extravehicular activity. Although future manned missions are currently being redefined, the atmosphere revitalization requirements for the spacecraft are expected to be quite similar to the Orion and the Altair vehicles and the SBAR test program addressed validation to the defined mission requirements as well as operation in other potential vehicle architectures. The development program, including test articles, the test facility, and tests and results through early 2011 is discussed.

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Development and Testing of a Sorbent-Based Atmosphere Revitalization System 2010/2011

Miller¹,

Knox

2011

41st International Conference on Environmental Systems

Self Cite

View full text Add to dashboard Cite

show abstract

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Performance Evaluation of Engineered Structured Sorbents for Atmosphere Revitalization Systems on Board Crewed Space Vehicles and Habitats

Cited by 1 publication

References 8 publications

Development and Testing of a Sorbent-Based Atmosphere Revitalization System 2010/2011

Development and Testing of a Sorbent-Based Atmosphere Revitalization System 2010/2011

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